Synthesis and crystal structure of dinuclear cyclopalladated 1,2- and 1,3-bridged squarato complexes
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- 作者：Crispini ; Alessandra ; Pucci ; Daniela ; Aiello ; Iolinda ; Ghedini ; Mauro
- 关键词：Crystal structures ; Palladium complexes ; Cyclometalated complexes ; Squarato complexes
- 刊名：Inorganica Chimica Acta
- 出版年：2000
- 出版时间：June 30, 2000
- 年：2000
- 卷：304
- 期：2
- 页码：219-223
- 全文大小：124 K
文摘
Two new dinuclear Pd(II) cyclometalated complexes of formula [L2Pd2(μ-1,2-sq)(C5H11N)2] (1) and [L2Pd2(μ-1,3-sq)(C5H11N)2]·2[(C5H12N)BF4] (1a) [HL=2,6-dimethylazobenzene], have been synthetized from a reaction of the mononuclear [LPd(acetone)2][BF4] with the piperidinium salt of squaric acid, [C5H12N]2[sq]. The single crystal X-ray analysis of complexes 1 and 1a shows that the sq ligand is found to bridge in both μ-1,2- and μ-1,3-coordination modes. These are the first examples of squarato Pd(II) complexes characterized structurally up to now.