Structural variation and luminescence properties of d10 metal ions complexes from 5-Aminotetrazolate ligand

Accepted Manuscript 10 Structural variation and luminescence properties of d metal ions complexes from 5Aminotetrazolate ligand Jian-Qiao Lin, Chen Xiong, Jian-Hua Xin, Min Li, Wei-Hua Guo, Fen Liu, Xiao-Lan Tong, Yin-Chong Ge PII:

S0022-2860(18)30435-6

DOI:

10.1016/j.molstruc.2018.04.004

Reference:

MOLSTR 25077

To appear in:

Journal of Molecular Structure

Received Date: 16 October 2017 Revised Date:

29 March 2018

Accepted Date: 2 April 2018

Please cite this article as: J.-Q. Lin, C. Xiong, J.-H. Xin, M. Li, W.-H. Guo, F. Liu, X.-L. Tong, Y.-C. Ge, 10 Structural variation and luminescence properties of d metal ions complexes from 5-Aminotetrazolate ligand, Journal of Molecular Structure (2018), doi: 10.1016/j.molstruc.2018.04.004. This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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Structural Variation and Luminescence Properties of d10 metal Ions

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Complexes from 5-Aminotetrazolate Ligand

Jian-Qiao Lina, Chen Xionga, Jian-Hua Xina*, Min Lib, Wei-Hua Guob, Fen Liub,

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Xiao-Lan Tonga,b*, Yin-Chong Geb

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Structural Variation and Luminescence Properties of d10 metal Ions Complexes from 5-Aminotetrazolate Ligand

a

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Tonga,b*, Yin-Chong Geb

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Jian-Qiao Lina, Chen Xionga, Jian-Hua Xina*, Min Lib, Wei-Hua Guob, Fen Liub, Xiao-Lan

State Key Laboratory Breeding Base of Nuclear Resources and Environment，East China

b

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Institute of Technology, Nanchang, 330013, Jiangxi, China;

School of Chemistry, Biology and Material Science, East China University of Technology,

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NanChang, 330013, Jiangxi, China

*

To whom correspondence should be addressed. E-mail: [email protected] (X.-L. Tong); [email protected] (J.-H. Xin)

ACCEPTED MANUSCRIPT Abstract Three

new

d10

complexes

with

5-aminotetrazolate

(5-HATZ),

[Zn2(5-ATZ)3(N3)]n

(1),

{[Cd6(5-ATZ)8Cl5]n·(H2O)4}n (2), and {[Cd12(5-ATZ)12Cl8(N3)4]·2H2O}n (3) have been obtained under

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hydrothermal conditions and structurally characterized. Single-crystal X-ray structural analyses reveal that complex 1 can be rationalized to be 3D dia topological nets with the metal ZnII centers acting as four-connected nodes and L acting as linkers, and the Schläfli symbol is 66, while 2 exhibits a 3D

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architecture based on six crystallographically independent hexahedral coordinated CdII centers linked by

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5-ATZ anion and Cl anion. Complex 3 also possesses a 3D network linked by 5-ATZ anion, Cl anion as well as N3 anion. The ligand 5-ATZ anion adopts µ1,4-bridging coordination mode in complex 1, µ1,2,3, µ1,2,4, µ1,2,3,4-bridge coordination mode in complex 2, while µ1,2,4, µ1,2,3,4-bridge coordination mode in complex 3.

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Also, the fluorescent properties of complexes 1 and 2 have been investigated.

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Keywords: 5-Aminotetrazolate; d10 coordination architectures; Topology; Fluorescence property

ACCEPTED MANUSCRIPT 1. Introduction Owing to their intriguing supramolecular compositions and versatile framework topologies as well as their potential applications especially in the field of catalysis, molecular-based magnets, electric, luminescence,

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and so on, metal coordination architectures have been paid increasing attention in recent years [1]. However, it is quite difficult to explore feasible successful synthetic strategies for the preparation of the metal coordination architectures that have the required structures and properties [2], Because there are many

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factors that impact the final product structures, such as the structure of the ligand [3], the coordination

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geometry of the central metal ion [4], the reaction temperature [5], solvent system [6], pH value of the solution [7], counteranions [8] , and the assistant ligand [9], ect. Therefore, researchers have changed one or two of the subtle reaction conditions in order to commendably understand the preparation process [3-9].

Tetrazoles are characterized by extreme properties among azoles, namely, by the highest N-H-acidity, the

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lowest basicity and the presence of several “pyridine-like” nitrogen atoms [10]. These features make tetrazoles be well known excellent and versatile building blocks, and have been found in a wide range of

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applications in areas as diverse as coordination chemistry, medicinal chemistry and materials science [11]. Among them, 5-aminotetrazolate (5-HATZ) is a multidentate organic ligand with five nitrogen atoms, and all

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of them could coordinate to metal ions. The hydrogen atom attached to the tetrazole ring can be easily loosed with the change of the temperature or/and the pH value of the reaction solution, which make the nitrogen atoms of the tetrazole ring more easily coordinating to the metal ions. However, the 5-aminotetrazolate (5-HATZ) has less been used as multidentate organic ligand for synthesizing metal coordination architectures [12]. On the other hand, the d10 metal can permit a more widely variety of geometries and coordination numbers along with the bigger radius, and their complexes generally exhibit preferable luminescent properties [13]. Also it is well known that luminescence complexes have attracted much attention recently

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of

their

potential

applications

in

chemical

sensors,

photochemistry

and

structure

electroluminescence (EL) display [14, 15]. Herein, we report three metal–organic coordination architectures, [Zn2(5-ATZ)3(N3)]n (1), {[Cd6(5-ATZ)8Cl5]n·(H2O)4}n (2), and {[Cd12(5-ATZ)12Cl8(N3)4]·2H2O}n (3),

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prepared under hydrothermal conditions using the of Zn(II) or Cd(II) salts with 5-HATZ by changing the reaction temperature and adding different assistant ligands. Cd(II)-5-aminotetrazolate metal organic frameworks have also been reported by Yao et al [12d], in which the ligand 5-ATZ anions adopt µ1 and µ3

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coordination modes while in our obtained complexes 2 and 3 they adopt µ3 and µ4 coordination modes. In

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Order to explore the fluorescent properties of our obtained complexes, we investigated the photoluminescent properties of complexes 1 and 2, which have significantly strong emission comparing to the literature [12d].

2. Experimental 2.1 Materials and method

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The solvents and reagents for synthesis were commercially available and used as received. The ligand 5-aminotetrazolate (5-HATZ) was synthesized by the literature method [16]. IR spectra were measured on a

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Tensor 27 OPUS (Bruker) FT-IR spectrometer with KBr pellets. Emission spectra were taken on an F-4500 spectrofluorometer. The X-ray powder diffraction (XRPD) was recorded on a Rigaku D/Max-2500

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diffractometer at 40 kV, 100 mA for a Cu-target tube and a graphite monochromator. Simulation of the XRPD spectra was carried out by the single-crystal data and diffraction-crystal module of the Mercury (Hg) program available free of charge. 2.2 Synthesis of complexes 1, 2 and 3

Synthesis of [Zn2(5-ATZ)3(N3)]n (1) A mixture of ZnCl2 (81.6 mg, 0.6 mmol), 5-HATZ (26 mg, 0.3 mmol ), NaN3 (39 mg, 0.6 mmol) and water (12 mL) was sealed in a 25 mL Teflon-lined stainless steel vessel and heated at 145 °C for 72 h, then

ACCEPTED MANUSCRIPT the sample was cooled to room temperature, light pink prism-shaped crystals of 1 were isolated and washed with water and ethanol and dried in air (ca. 36% yield based on 5-HATZ). Anal. Calcd for C163H6Zn2N18: C, 8.80; H, 1.47; N, 61.37. Found: C, 8.63; H, 1.51; N, 61.37. IR (KBr pellet, cm−1): 3339s, 3197m, 2172w,

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1655m, 1570s, 1473m, 1448m, 1158s, 1095m, 915m, 748w, 705w, 653w.

Synthesis of {[Cd6(5-ATZ)8Cl5]n·(H2O)4}n (2)

The mixture of CdCl2·2.5H2O (138 mg, 0.6 mmol), 5-HATZ (26 mg, 0.3 mmol), and H2O (12 mL) was

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sealed in a stainless-steel reactor with Teflon liner. The above mixture was heated to 160 oC, kept at constant

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temperature for 72 h, and then slowly cooled to room temperature automatically. Colorless prism crystals of 2 were obtained, washed by water and ethanol, and dried in air (ca. 36% yield based on 5-HATZ). Anal. Calcd for C8H25Cd6Cl5N40O4: C, 6.01; H, 1.57; N, 35.06. Found: C, 5.82; H, 1.62; N, 34.71. IR (KBr, cm–1): 3461m, 3210w, 1614s, 1504s, 1438m, 1155s, 916w, 767w, 701w。

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Synthesis of {[Cd12(5-ATZ)12Cl8(N3)4]·2H2O}n (3) Complex 3 was synthesized by the reaction of CdCl2·2.5H2O (138 mg, 0.6 mmol), 5-HATZ (26 mg, 0.3

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mmol), NaN3 (52 mg, 0.8 mmol) mixed with 12 ml of water under hydrothermal condition. The mixture was heated at 160 oC for 72 h and cooled to room temperature with a 5 oC·h–1 rate. Then the colorless crystals

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were washed by water and ethanol, and dried in air. IR (KBr, cm–1): 3465m, 3215w, 2103s, 1620s, 1500s, 1425m, 1145m, 920w, 750w, 690w.

2.3 X-ray crystallography

Complexes 1-3 were collected on a Scx-Mini diffractometer equipped with a graphite crystal monochromator situated in the incident beam. The determinations of unit cell parameters and data collections were performed with Mo-Kα radiation (λ = 0.71073 Å) at 293(2) K and unit cell dimensions were obtained with least-squares refinements. The program SAINT [17a] was used for integration of the

ACCEPTED MANUSCRIPT diffraction profiles. All the structures were solved by direct methods using the SHELXS program of the SHELXTL package and refined by full-matrix least-squares methods with SHELXL [17b]. Metal atoms in the compounds were located from the E-maps and other non-hydrogen atoms were located in successive

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difference Fourier syntheses and refined with anisotropic thermal parameters on F2. The hydrogen atoms of the ligand were generated geometrically. A summary of the crystal data and structure refinements for 1-3 are

(Insert Table 1)

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2.4 XRPD

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provided in Table 1, while selected bond distances and angles are collected in Table 1S.

To check the purity of complex 1 and 2, X-ray power diffraction (XRD) were studied. As shown in Fig. 1S, all the peaks displayed in the measured patterns closely match those in the simulated paterns generated

3. Results and discussion

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from single-crystal diffraction data.

3.1. Description of the crystal structures

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[Zn2(5-ATZ)3(N3)]n (1)

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Single-crystal X-ray analysis revealed that complex 1 is a 3D architecture. As shown in Fig. 1a, each ZnII center shows a coordination number of four, binding with four nitrogen atoms from three 5-ATZ anions and one N3 anion. The Zn–N bond distances are 1.989(8), 1.989(8), 1.989(8) and 2.01(4)Å, all the Zn–N distances are comparable to those of the reported ZnII-tetrazole complexes [18]. The coordination angles around ZnII center vary from 103.9(3) to 114.4(3)°, which indicate the tetrahedral geometries around ZnII centers are slightly distorted. Moreover, each 5-ATZ anion serves as µ1,4-bridge coordination mode linking two ZnII centers, also the N3 anion adopts µ1,3-bridging coordination mode to link two ZnII centers. Finally,

ACCEPTED MANUSCRIPT the ZnII centers are connected by 5-ATZ anions and N3 anions to complete the overall 3D network (Fig. 1b). Meanwhile, the 3D framework of complex 1 can be rationalized to be 4-connected dia topology with ZnII center acting as a tetrahedral node, and the Schläfli symbol is 66 (Fig. 1c). Among the known Zn complexes

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containing 5-ATZ [12c], the typical coordination mode of 5-ATZ is µ1,4-bridge coordination mode, which

topology. (Insert Fig. 1)

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{[Cd6(5-ATZ)8Cl5]n·(H2O)4}n (2)

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was also obseved in our complex 1, in addition, there exist a µ1,4-bridge N3 anion and result in the different

Complex 2 crystallizes in Pbca space group and shows a 3D framework. It consists of six crystallographically independent CdII centers (Fig. 2a), Cd1, Cd2, Cd3, Cd4, Cd5 and Cd6. All of them are six-coordinated with a distorted environment, (CdN5Cl) for Cd1 and Cd4, while (CdN4Cl2) for Cd2, Cd3,

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Cd5 and Cd6. Cd1 and Cd4 are coordinated by five nitrogen atoms from five 5-ATZ anions and one µ2-bridging Cl anion. In contrast, Cd2, Cd3, Cd5 and Cd6 are coordinated by four nitrogen atoms from four

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5-ATZ anions and two µ2-bridging Cl– anions. The Cd-N distances range from 2.240(9) to 2.474(8) Å, and the Cd-Cl distances range from 2.546(3) to 2.656(3) Å.

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The 5-ATZ anions adopt µ1,2-bridge (connecting Cd1 and Cd4)，µ1,2,3-bridge (Connecting Cd2, Cd3 and Cd5; Cd1, Cd4 and Cd5) and µ1,2,3,4-bridge (Connecting Cd2, Cd3, Cd5 and Cd6; Cd2, Cd3, Cd4 and Cd5; Cd1, Cd2, Cd4 and Cd6) coordination modes, as well as Cl anions adopt µ2-bridge coordination mode and link CdII centers to form 2D layered structure in the bc plane (Fig. 2b). These adjacent 2D layers are connected by µ1,2,4-bridged 5-ATZ anions to 3D structure along the c axial (Fig. 2c), in which the µ1,2,4-bridged 5-ATZ anions (Connecting Cd1, Cd3 and Cd6; Cd1, Cd4 and Cd5) coordination mode has been observed. Although several tetrazolate cadium complexes have been obtainied [12d, 19b], however,

ACCEPTED MANUSCRIPT there exist six crystallographically independent CdII centers, and the coordination modes of the 5-ATZ are more complicated in our complex 2 comparing with the reported literatures. (Insert Fig. 2)

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{[Cd12(5-ATZ)12Cl8(N3)4]·2H2O}n (3) Single-crystal X-ray analysis revealed that complex 3 is a three-dimensional (3D) structure and crystallizes in the space group Pna21. As shown in Fig. 3a, complex 3 contains three kinds of CdII centers,

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(CdN4Cl2) for Cd1 and Cd2, while (CdN5Cl) for Cd3. Cd1 is bonded to four nitrogen atoms from three

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different 5-ATZ anions and one N3 anion, and the other two coordination sites are occupied by two Cl anions from µ3-bridge Cl anion and µ2-bridge Cl anion, while Cd2 is bonded by four nitrogen atoms from four different 5-ATZ anions, and the other two coordination sites are occupied by two Cl anions from µ3-bridge Cl anion and µ2-bridge Cl anion. Cd3 displays a distorted octahedral geometry, being ligated by five nitrogen

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atoms from four 5-ATZ anions and one N3 anion, and another Cl anion from µ3-bridge Cl anion. One kind of µ1,2,3,4-bridge coordination of 5-ATZ anion links four CdII centers (Cd2, Cd1, Cd2, Cd3, Cd-N from 2.358 to 2.500Å) with the metal-metal separation of 3.710-6.861Å, another µ1,2,3,4-bridge

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coordination of 5-ATZ anion links four CdII centers (Cd1, Cd3, Cd3, Cd1, Cd-N from 2.314 and 2549Å)

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with the metal-metal separation of 3.791-6.917Å, and each µ1,2,4-bridge coordination of 5-ATZ anion links three CdII centers (Cd2, Cd3, Cd2, Cd-N from 2.345 to 2.378Å) with the nonbonding Cd…Cd distance of metal-metal separation of 3.710-6.917 Å. The Cd…Cd distance linked by µ2-bridge Cl anion is 4.256 Å, while the distances from 3.710 to 3.865 Å linked by µ3-bridge Cl anion. Also the bond distances and angels around CdII centers are similar to those reported CdII–tetrazole complexes [19]. Then these bridges play an important role in the help of supporting the 3D compliated network structure (Fig. 3b). In the 3D structure, the semicircle can be shown as a chain structure along the a aixs (Fig. 3c). Comparing with literuture [19c],

ACCEPTED MANUSCRIPT 5-ATZ anion in complex 3 have more complicated coordination modes, while the N3- only acting as terminal coordination group, furthermore, there exists µ3 OH- anion in the literature, although they are both demonstrated as 3D structure.

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(Insert Fig. 3) 3.3. Summary of the Structures

In this study, complexes 1-3 are all displaying 3D frameworks, but quitely different from each other.

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The structures of complexes 1 and 3 are different because of their different metal ion (Zn for 1, and Cd for 3),

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although they are basing on the same lignad 5-HATZ and same assistant ligands NaN3. The ZnII center takes tetrahedral coordination geometry in 1, while CdII center taking octahedral coordination geometry in 3. The ligand 5-ATZ anion adopts µ1,4-bridging coordination mode in complex 1, and µ1,2,4-bridge coordination mode and µ1,2,3,4-bridge coordination mode in 3. Complex 2 and 3 contain the same 5-HATZ ligands, same

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metal centers, but different structures were obtained because the adding of assistant ligand NaN3 when 3 was synthesized. Meanwhile, the different coordination modes of 5-ATZ anion were observed, µ1,2,3-bridging coordination mode, µ1,2,4-bridge coordination mode and µ1,2,3,4-bridge coordination mode in complex 2, while

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µ1,2,4-bridge coordination mode and µ1,2,3,4-bridge coordination mode in 3. The tetrazolate heterocyclic has

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nine versatile coordination modes ranging from k1 to k4 when they have been used to construct MOFs [20], and there are five coordinaiton modes observed in our obtained complexes 1-3, one coordination mode for comlex 1, four coordination modes for complex 2 and two coordination modes for complex 3. Also six crystallographically independent CdII centers have been found in complex 2, which has been seldom appeared in Cd complexes containing 5-HATZ. In a word, the structural differences of the complexes with the same ligands mainly be attributed to the radii of the metal centers with the CdII center having a large atomic radius than ZnII center, as well as the

ACCEPTED MANUSCRIPT adding of the assistant ligand resulting in different coordination configurations [21].

3.4. IR Spectroscopy The IR spectra of complexes 1, 2 and 3 show a medium strong intensity band around 3300 cm-1 for the

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amino groups, which can be assigned to v(NH) characteristic stretching frequency (for 1, 3339 and 3197cm-1; 2, 3461 and 3201cm-1; 3, 3465 and 3215 cm-1), all of them show different degrees of blue shift from the bands observed at 3485 and 3382 cm-1 for the free ligand [12d, 12e and 19b]. The peak at around 2100 cm-1

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for the asymmetric stretching of N3- (for 1 2172 cm-1 and 3 2103 cm-1) confirm the existence of the azide

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anion in the compexes [19c]. Besides these, the strong band around 1630 cm-1 and the medium band around 1450 cm-1 can be attributed to v(C=N)/ring stretching vibratoins plus δ(N-H)NH,NH2 of the ligand [12d, 22].

3.5. Photoluminescent property

The photoluminescence of Complexes 1 and 2 in the solid state were investigated at room temperature.

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They exhibit intensive radiation emission maxima at ca. 506 nm and 477 nm for complexes 1 and 2(Fig. 2S), respectively, while the free 5-HATZ ligand displays a very weak emission centered at ca. 325 nm [12c]. The

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enhancement of fluorescence emission of d10 complexes and distinct red-shift may attributed to the chelation of the ligands to the metal centers, this can enhance the “rigidity” of the ligands and thus reduce the loss of

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energy through a radiationless pathway [23, 24], which were observed in literatures [19]. Also, the variations of photoluminescence of complex 1 and 2 may be rationalized by their different local coordination environments. Furthermore, the different crystal densities of 1 and 2 (2.051 g/cm3 for 1 and 2.211 g/cm3 for 2) may imply the different interligand contacts and/or the network rigidities, therefore, the emission shifts bluely from 1 to 2 [19b]. The emission in the blue region of complexes 1 and 2 suggest that both of them may be suitable as excellent candiates of blue fluorescence materials.

4. Conclusion

ACCEPTED MANUSCRIPT Three new zinc and cadmium tetrazole complexes 1~3 have been obtained by hydrothermal method, also the fluorescence properties of complexes 1 and 2 have been studied. The results revealed that the nature of the metal ions and the reaction conditions as well as the assistant ligand can play important roles in the

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structure arrangements. Moreover, complexes 1 and 2 have radiation emission maxima at ca. 506 nm and 477 nm, which may derive from the metal-to-ligand charge transfer (MLCT) and/or ligand-to-metal charge transfer (LMCT). It is anticipated that more metal complexes containing 5-aminotetrazolate ligand and more

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other assistant ligands with charming structures as well as physical properties will be synthesized.

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Accession Codes

CCDC 1564331-3 contains the supplementary crystallographic data for this paper. These data can be obtained

free

of

charge

via

www.ccdc.cam.ac.uk/data_request/cif,

or

by

emailing

[email protected], or by contacting The Cambridge Crystallographic Data Center, 12, Union

Acknowledgments

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Road, Cambridge CB2 1EZ, UK; fax: +44 1223 336033.

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This work was financially supported by the Natural Science Foundation of China (21461001, 21401022), the open fund of State Key Laboratory for Nuclear Resources and Environment (NRE1510), the

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Project of Jiangxi Provincial Department of Education (Grant No. GJJ13448), ), the Natural Science Foundation of Jiangxi Province of China (20151BAB204004), the open fund of Fundamental Science on Radioactive Geology and Exploration Technology Laboratory (REGT1212, REGT1409.

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(f) T.Y. Gu, M. Dai, D.J. Young, Z. G. Ren, J.P, Lang, Inorg. Chem. 56 (2017) 4668. [14] (a) G.D. Santis, L. Fabbrizzi, M. Licchelli, A. Poggi, A. Taglietti, Angew. Chem., Int. Ed. Engl. 36 (1996) 202;

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Structures, University of Göttingen, Germany, 1997.

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(b) G.M. Sheldrick, SHELXTL NT Version 5.1. Program for Solution and Refinement of Crystal

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ACCEPTED MANUSCRIPT [24] (a) S.L. Zheng, M.L. Tong, S.D. Tan, Y. Wang, J.X. Shi, Y.X. Tong, H.K. Lee, X.M. Chen, Organometallics, 20 (2001) 5319;

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(b) S.L. Zheng, J.H. Yang, X.L. Yu, X.M. Chen, W.K. Wong, Inorg. Chem. 43 (2004) 830.

ACCEPTED MANUSCRIPT Table 1 Crystallographic data and structure refinement details for compounds 1-3.

C3H6Zn2N18 408.99 Rhombohedral R-3c 293(2) 10.3585(15) 10.3585(15) 21.379(4) 90 90 120 1786.7(6) 6 2.051 3.649 1212 5103 396 0.0761/0.2000 0.0900/0.1913

α/() β/deg γ/deg

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R = Σ(||Fo| – |Fc||)/Σ|Fo|. b wR = [Σ(|Fo|2 – |Fc|2)2/Σ(Fo2)]1/2

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Dc/g cm−3 µ/mm−1 F(000) Reflnsmessured Obsd reflns R1a/wR2b[I>2σ(I)] R1, wR2(all data)

C8H25Cd6Cl5N40O4 1597.33 Orthorhombic Pbca 293(2) 18.324(4) 18.867(4) 27.757(6) 90 90 90 9596(3) 8 2.211 2.959 6064 74410 8445 0.0628/0.1515 0.0782/0.1449

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V/Å3 Z

3 C12H28Cd12Cl8N72O2 2845.58 Orthorhombic Pna21 293(2) 13.313(3) 16.836(3) 6.9166(14) 90 90 90 1550.3(5) 1 3.048 4.465 1332 12461 2728 0.0359/0.0921 0.0393/0.0906

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Empirical formula Formula weight Crystal system Space group T/K a/Å b/Å c/Å

2

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1

ACCEPTED MANUSCRIPT Captions to Scheme and Figures Fig. 1. Views of (a) ORTEP diagram showing the coordination environment for ZnII center and the 5-ATZ–anion; (b) The 3D framework structure of 1; (c) The schematic of the 4-connected dia topology for 1.

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Fig. 2. Views of (a) Coordination environment of the CdII center in 2; (b) A single 2D layer constructed by CdII centers, 5-ATZ– ligands, and Cl anions the bc plane; (c) The 3D structure of 2;

Fig. 3. View of (a) Perspective view if the coordination environments of CdII centers in 3; (b) The 3D

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structure of 3; (c) The semicircle in the 3D structure showing as a chain structure along the a aixs.

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Fig.1

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Fig. 2

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ACCEPTED MANUSCRIPT Structural Variation and Luminescence Properties of d10 metal Ions Complexes from 5-Aminotetrazolate Ligand Jian-Qiao Lina, Chen Xionga, Jian-Hua Xina*, Min Lib, Wei-Hua Guob, Fen Liub, Xiao-Lan

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Tonga,b*, Yin-Chong Geb

State Key Laboratory Breeding Base of Nuclear Resources and Environment，East China

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Institute of Technology, Nanchang, 330013, Jiangxi, China; b School of Chemistry, Biology and Material Science, East China University of Technology, NanChang, 330013, Jiangxi, China

Complex 1，2 and 3 are all 3D structures.




Complex 1 and 2 exhibit intense blue fluorescence behavior.




The structural differences are owing to different conditions and metal ions.

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