ISSN:
0377-0486
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
Resonance Raman spectra are reported for 1,2,3,4,5,6,7,8-octamethylporphin, 1,3,5,7-tetramethylporphin and mesotetraphenylporphin and its Ni-, Cu-, and Pd-chelates. Comparison of infrared and Raman data for the non-metallo compounds provides evidence that mesotetraphenylporphin loses its centre of symmetry in the solid state while the other two molecules retain theirs.Depolarization ratio measurements for Ni-tetraphenylporhin in CS2 solution reveal the presence of several anomalously polarized vibrations (ϱ 〉 ¾). Evidence is presented to show that the symmetry of the molecule in solution has been reduced from D4h.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jrs.1250030217
Permalink