Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10564434 | Vibrational Spectroscopy | 2005 | 5 Pages |
Abstract
The infra-red (IR) spectroscopic data for a series of 15 mixed [tetrakis(4-chlorophenyl)porphyrinato](phthalocyaninato) rare earth double-decker complexes with tervalent rare earths MIII(TClPP)(Pc) (M = Y, La, â¦, Lu except Ce and Pm) and intermediate-valent cerium Ce(TClPP)(Pc) have been collected with resolution of 2 cmâ1. For MIII(TClPP)(Pc), typical IR marker band of the monoradical anion Pcâ shows the most intense absorption band whose frequency linearly varies in the range from 1311 cmâ1 for La(TClPP)(Pc) to 1320 cmâ1 for Lu(TClPP)(Pc) along with the decrease of rare earth ionic size. The peaks at 1016-1023 cmâ1 are assigned to CCl stretchings. For Ce(TClPP)(Pc), a medium band at 1329 cmâ1 with contribution from pyrrole stretching was the marker IR band of phthalocyanine dianion Pc2â. The TClPPâ IR marker band at ca. 1270-1300 cmâ1 was not observed for these compounds. These facts indicate that the hole in these double-deckers is mainly localized at the phthalocyanine ring.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Fanli Lu, Ligai Zhang, Huaji Liu, Xiuru Yan,