ORGANOMETALLIC COMPLEXES WITH BIOLOGICAL MOLECULES .1. DIORGANOTIN(IV)CHLORO PROTOPORPHYRIN-IX COMPLEXES - SOLID-STATE AND SOLUTION-PHASE CHARACTERIZATION

被引：10
|
作者：
PELLERITO, L
PELLERITO, A
MAGGIO, F
BELTRAMINI, M
SALVATO, B
RICCHELLI, F
机构：
[1] UNIV PADUA,DIPARTIMENTO BIOL,I-35100 PADUA,ITALY
[2] CNR,CTR EMOCIANINE,DIPARTIMENTO BIOL,I-35100 PADUA,ITALY
来源：
APPLIED ORGANOMETALLIC CHEMISTRY | 1993年 / 7卷 / 02期
关键词：
ORGANOTIN; PROTOPORPHYRIN-IX; STRUCTURES; MOSSBAUER; INFRARED; UV-VISIBLE FLUORESCENCE; NUCLEAR QUADRUPOLE SPLITTING;
D O I：
10.1002/aoc.590070202
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Protoporphyrin IX (H4PPIX) complexes of diorganotin(IV)chloro moieties with formula (R2SnCl)2H2PPIX (R = Me, Bu and Ph) have been obtained and their solid-state and solution-phase configurations have been studied through spectroscopic investigations. Coordination of the side-chain carboxylates of H4PPIX to R2Sn(IV)Cl moieties, with bridging carboxylate (COO-) has been inferred by comparison of the free and coordinated H4PPIX IR spectra, while the occurrence of a five-coordinated tin(IV) atom in a cis-R2 trigonal bipyramidal structure has been deduced, for all of the synthesized complexes, by rationalization of the nuclear quadrupole splitting parameters, according to the point-charge model formalism. Finally, the solution-phase spectral features of (R2SnCl)2H2PPIX are in agreement with the monomeric character of the protoporphyrin IX, under the experimental conditions used.
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收藏
页码：79 / 84
页数：6
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