ON THE USE OF RAMAN-SPECTROSCOPY IN THE CHARACTERIZATION OF IODINE IN CHARGE-TRANSFER COMPLEXES

被引:93
作者
DEPLANO, P [1 ]
DEVILLANOVA, FA [1 ]
FERRARO, JR [1 ]
ISAIA, F [1 ]
LIPPOLIS, V [1 ]
MERCURI, ML [1 ]
机构
[1] ARGONNE NATL LAB,DIV CHEM & MAT SCI,ARGONNE,IL 60439
关键词
CHARGE-TRANSFER; DIIODINE; POLYIODIDES; FT-RAMAN;
D O I
10.1366/0003702924926880
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
FT-Raman spectra of some polyiodides and of a series of D.I2 charge-transfer complexes (where D is a molecule containing the thione or selone groups as donors), all characterized by x-ray diffraction, are reported. For the adducts with the thione compounds, which can be considered weak or medium-weak complexes, an empirical linear correlation between the frequency of the nu(I-I) stretching vibrations and the d(I-I) bond distances has been found. Some polyiodides show FT-Raman spectra that are indistinguishable with respect to those displayed by the neutral complexes of weak or medium-weak strength; in such cases, the polyiodide can be regarded as a diiodine molecule, perturbed by an I(n)- (n = 1,3....) donor. Polyiodides of this type show Raman absorptions falling in the linear correlation.
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页码:1625 / 1629
页数:5
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