Photoreactivity of (HBpyrazolyl3) TiCl3 and (C5H5)TiCl3 initiated by ligand-to-metal charge transfer excitation

被引：13

作者：

Kunkely, H ^{[1
]}

Vogler, A ^{[1
]}

机构：

[1] Univ Regensburg, Inst Anorgan Chem, D-93040 Regensburg, Germany

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1998年 / 119卷 / 03期

关键词：

charge transfer; titanium complexes; metallocenes; hydrotrispyrazolate complexes;

D O I：

10.1016/S1010-6030(98)00406-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The isoelectronic complexes LTiiv Cl-3 with L- = C5H5- and HBPz(3)(-) (hydrotrispyrazolylborate) show long-wavelength LMCT absorptions lambda(max) = 382 and 314 nm, respectively. LMCT excitation is assumed to generate L radicals and TiCl3 in the primary photochemical step. In CHCl3 solution TiCl3 is reoxidized by the solvent to TiCl4 which is formed with phi = 0.003 at lambda(irr) = 405 nm (L- = C5H5-) and phi = 0.002 at lambda(irr) = 366 nm (L- = HBPz(3)(-)). (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：187 / 190

页数：4

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