Synthesis and structural characterization of the beta-diketonate aryloxide dimer [Ca-2(tmhd)(4)(OArN)(4)(EtOH)(2)] (where H-tmhd=2,2,6,6-tetramethylheptane-3,5-dione; H-OArN=2,6-N,N-dimethylaminomethyl-4-methylphenol)

被引:9
作者
Arunasalam, VC
Michael, D
Mingos, P
Plakatouras, JC
Baxter, I
Hursthouse, MB
Malik, KMA
机构
[1] UNIV LONDON IMPERIAL COLL SCI TECHNOL & MED,DEPT CHEM,LONDON SW7 2AY,ENGLAND
[2] UNIV WALES COLL CARDIFF,DEPT CHEM,CARDIFF CF1 3TB,S GLAM,WALES
关键词
D O I
10.1016/0277-5387(96)00140-4
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The in situ reaction of the oligomeric Group 2 metal ethoxide complex [Ca(OEt)(2) (EtOH)(4)](n) with 1 equiv. of 2,2,6,6-tetramethylheptane-3,5-dione (H-tmhd) and 2,6-N,N-dimethylaminomethyl-4-methylphenol (H-OArN) yielded the ethanol-adducted beta-diketonate aryloxide compound [Ca-2(tmhd)(4)(OArN)(4)(EtOH)(2)] (1). If, during the reaction workup, reduced pressures and high temperatures are applied, then the ethanol free derivative [Ca(tmhd)(1.5)(OArN)(0.5)](n) (2) is isolated. Complex 1 was shown by single crystal studies to be dimeric, with the calcium ions seven-coordinate and held together by bridging OArN ligands. Copyright (C) 1996 Elsevier Science Ltd.
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页码:3971 / 3977
页数:7
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