prelims, contents pages

prelims, contents pages

Polyhedron 23, issue 13, 19 August 2004 www.elsevier.com/locate/poly Contents Papers Ming Wen, Megumu Munakata, Yusaku Suenaga, Takayoshi Kuroda-Sowa...

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Polyhedron 23, issue 13, 19 August 2004 www.elsevier.com/locate/poly

Contents Papers Ming Wen, Megumu Munakata, Yusaku Suenaga, Takayoshi Kuroda-Sowa, Masahiko Maekawa, Iwade Kodai Polyhedron 23 (2004) 2117 Dinuclear silver(I) complexes of N ; N 0 -dibenzyl-4,13-diaza-18-crown-6-ether and dibenzo-24-crown-8-ether

Wen-Long Liu, Yang Zou, Chang-Sheng Lu, Dong-Bin Dang, Yi-Zhi Li, Yuan-Gen Yao, Qing-Jin Meng Polyhedron 23 (2004) 2125 Self-assembly, structure and magnetic properties of carboxylate-bridged Cu(II)–M(II) (M=Mg, Ca, Sr, Ba) complexes with a new metalloligand as a building block

A. Semioshkin, B. Brellochs, V. Bregadze Polyhedron 23 (2004) 2135 Reactions of closo-[B12H12]2) anion with aromatic acylchlorides: synthesis of novel 1,2-disubstituted dodecaborates [1-HO-2-ArCOB12H10]2)

Elsevier Ltd.

Three silver(I) coordination complexes of diaza- and dibenzo-crown ethers, [Ag(DDAC)](CF3SO3) (1), [Ag2(DDAC)(CF3SO3)2]2 (2) and Ag2(DB24C8)(CF3SO3)2 (3), have been synthesized and characterized structurally. The X-ray structure analyses reveal mononuclear complex 1, and dinuclear complexes 2 and 3 based on metaloxygen and metal-nitrogen bonds.

CF3SO3CH2 N Ag O 3.76Å O O Ag N O CH2 CF3SO3-

The carboxylate-bridged Cu(II)–M(II) (M=Mg, Ca, Sr, Ba) mononuclear entity, polynuclear clusters, extended 1D ladder-like and 2D layer coordination polymers were self-assembled and structurally characterized. The UV–Vis, IR spectra and magnetic properties are reported.

Reaction of Na2[B12H12] with aromatic acylchlorides in boiling acetone results in novel [1-HO-2-ArCOB12H10]2) dodecaborates: The mechanism of the reaction is studied by NMR techniques and the intermediate B is characterized.

2-

-

O

[B12H12]2-

1.ArCOCl acetone, reflux

OH

Ar

1

1 6

5

9

2

4

3

10

11 8 12

=BH

B

7

2. H2O or MeOH

COAr

6

5

2 3

4

9

10

11 8 12

=BH

7

iv

Faye E. Bradford, Lee P. Connor, Colin A. Kilner, Malcolm A. Halcrow Polyhedron 23 (2004) 2141 Iron complexes of 3-(pyrazinyl)-1,2,4-triazole ligands

Xin He, Ping Zhang ,Tian-You Song, Zhong-Cheng Mu, Jie-Hui Yu, Yue Wang, Jia-Ning Xu Polyhedron 23 (2004) 2153 Hydrothermal synthesis and structure of a molybdenum(VI) phosphate cluster and a three dimensional cobalt molybdenum(V) phosphate

Karen J. Nordell, Kristin N. Schultz, Khadine A. Higgins, Mark D. Smith Polyhedron 23 (2004) 2161 Hydrothermal synthesis of two new leadcontaining coordination polymers: 2 2 0 ¥[PbCl2(4,4 -bipy)] and ¥[Pb2(NO3)4(H2O)2(4,40 -bipy)2](4,40 -bipy)2

Stephen J. Scales, Haiwen Zhang, Paul A. Chapman, Ciara P. McRory, Eric J. Derrah, Christopher M. Vogels, Mazen T. Saleh, Andreas Decken, Stephen A. Westcott Polyhedron 23 (2004) 2169 Synthesis, characterization, and cytotoxicities of palladium(II) and platinum(II) complexes containing fluorinated pyridinecarboxaldimines

Contents

Different salts of the homoleptic iron(II) complexes of 3-(pyrazinyl)-1,2,4-triazole and 1-methyl-3-(pyrazinyl)-1,2,4-triazole show varying spin-state regimes, with most of the compounds examined undergoing a spinstate transition upon cooling or warming. Synthesis of these compounds is complicated by autooxidation of the reaction mixtures, yielding in one case an oxo-bridged diiron(III) complex.

Two new molybdenum phosphates [Co(en)3][C4H12N2]0.5[(Mo5O15)(HOPO3)2]Æ3H2O (1), (en=ethylenediamine) and (C4N2H10)5[Co3Mo12O18(HOPO3)6(PO4)2(OH)12(H2O)4] Æ 9H2O (2) have been synthesized hydrothermally. It was demonstrated the threedimensional 2 was synthesized from the zero-dimensional 1 under hydrothermal reaction.

Hydrothermal reaction of Pb(II)X2 (X=Cl), NO3)) and 4,40 -bipyridine in a molar ratio of 1:1 resulted in the formation of two new Pb(II) coordination polymers, 2¥[PbCl2(4,40 bipy)] and 2¥[Pb2(NO3)4(H2O)2(4,40 -bipy)2](4,40 -bipy)2.

Sixteen palladium and platinum dichloride pyridinecarboxaldimine complexes containing fluorine have been prepared and characterized fully. Cytotoxicities of the complexes have been investigated against OV2008 (human ovarian carcinoma) and the analogous cisplatin-resistant cell line C13.

F N

N Pt Cl

Cl

Contents

Arindam Mukherjee, Manas K. Saha, Munirathinam Nethaji, Akhil R. Chakravarty Polyhedron 23 (2004) 2177 Dicopper(II) Schiff base aminobenzoates with discrete molecular and 1D-chain polymeric structures

Discrete dimeric o-aminobenzoate and 1Dchain polymeric p-aminobenzoate complexes having a [Cu2(l-OR)(l-O2CR)] core, with the endogenic alkoxide bridge derived from a trianionic pentadentate Schiff base (L), are prepared and structurally characterized. Magnetic studies show antiferromagnetic properties of the complexes.

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