Fluorescence yields of azulene derivatives

Volume 1.5, number

CHEWCAL

1

PHYSICS

LETTERS

15 July 1972

ERRATUM S.M-mm, C.fwnnaga, T. Toda

anti H. Kokubun,

Fiuorescence yieIds of azulene derivatives, Chem. Phys, Letters

13 (197P) 101. According ta the private communication from Professor 1.3. Bcrlman, the value of the ftuorescence yield of azulene listed in ref. [I], which was adopted as a standard of the fluorescence yicid in the above paper. is in error by a factor of 10. We redetermined the fluorescence yield of azulene adopting quinine in 1 N sulfuric acid nnd Znaphthylamine in benzene as standards and found the v&.rz 0.03 1.

fable _--p_.&____Compound -_-._.

6 5 7

1 s 4 8 3 2 13

9f .-...I ._....

0.058 0.036

0.032 0.031 0.014 0.012

1

.,._____I~ kf x 10-7 lid x lo-’ (Kc- * ) (set-’ ) .._._ -._.,-~-_ .__ .._-5.8 3.6 6.1 ;:;;.

2.7 2.9 2.9

7.3 6.9 20 24

0.0081

2.0

25

0.0062 0.0066 sz 10-4

2.4 2.7

39 41

10

Z

10-4

I2

zz

If-j--”

11

x

10-4

16

--“i0-S

17

x I#--”

1.5 14

Fz 1~“5

31 32 33 34

0.0034 1

II

12

I4

1.5

AE ;3kK1,

Fig. 3.

(1) J?,, kf and k, values in table 1 should be corrected as shown in the table here. (2) ‘Irgvalues in fig, Z should be multiplied by 0.155, (3) Gg. 3 should be replaced by the figure here. As seer! in the figure, the close corre!ation and the exponential relationship between kd and AE still exist, and the discussion given in the paper need not be changed. We are grateful to Professor LB. Berlman and Professor EM. Evleth for pointing out the error.

4.1

119

Reference f 11 LB. Berlman, Handbook of fhorescence spectra ai organic mokcuies (Academic Press, New York, 1965).