Synthesis and crystal structure of zirconium complexes with fluorinated tetradentate beta-ketoiminate ligands

被引：19

作者：

Bastianini, A ^{[1
]}

Battiston, GA ^{[1
]}

Benetollo, F ^{[1
]}

Gerbasi, R ^{[1
]}

Porchia, M ^{[1
]}

机构：

[1] CNR,IST CHIM & TECNOL INORGAN & MAT AVANZATI,I-35127 PADUA,ITALY

来源：

POLYHEDRON | 1997年 / 16卷 / 07期

关键词：

zirconium; crystal structure; ketoimine ligands;

D O I：

10.1016/S0277-5387(96)00383-X

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two beta-ketoiminato complexes of zirconium, di[bis-trifluoroacetylacetone-ethylenediiminato]zir conium Zr(enTFA(2))(2) (1), and di [bis-trifluoroacetylacetone-trimethylenediiminato]zirconium, Zr(trimenTFA(2))(2) (2), have been obtained in high yield from the reaction of ZrCl4 and the sodium salt of the corresponding Schiff base. The compounds have been characterized by elemental analysis, NMR, mass spectrometry and X-ray structure determination. The coordination geometry around the zirconium atom is a dodecahedron in 1 and a square antiprism in 2. The increase of the aliphatic bridging chain of the ligand does not produce significant changes in the Zr-O-av bond distances [2.101(2) in 1 and 2.086(4) Angstrom in 2] while the Zr-N-av. bond distances are lengthened [2.432(4) in 1 and 2.491(5) Angstrom in 2]. Copyright (C) 1997 Elsevier Science Ltd.

引用

页码：1105 / 1110

页数：6

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