ISSN:
0377-0486
Schlagwort(e):
Chemistry
;
Analytical Chemistry and Spectroscopy
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
,
Physik
Notizen:
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.
Zusätzliches Material:
3 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/jrs.1250030217
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