Analysis of Weak Interactions in the Crystal Packing of Inorganic Metalorganic Hybrids Based on Keggin Polyoxometalates and Dinuclear Copper(II)-Acetate Complexes
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- 作者：Santiago Reinoso ; Pablo Vitoria ; Leire San Felices ; Luis Lezama ; and Juan M. Gutié ; rrez-Zorrilla
- 刊名：Inorganic Chemistry
- 出版年：2006
- 出版时间：January 9, 2006
- 年：2006
- 卷：45
- 期：1
- 页码：108 - 118
- 全文大小：7288K
- 年卷期：v.45,no.1(January 9, 2006)
- ISSN：1520-510X
文摘
Reaction of in situ generated copper-monosubstituted Keggin polyoxometalate (POM) and copper-phenanthrolinecomplexes in potassium or sodium acetate buffers led to the formation of the potassium salt of[{SiW11O39Cu(H2O)}{Cu2(phen)2(H2O)(ac)2}]4- (1) and [{Si2W22Cu2O78(H2O)}{Cu2(phen)2(H2O)(ac)2}2]8- (2, wherephen = phenanthroline and ac = acetate) hybrid polyanions, respectively. Both compounds are the first discretemono- and bimolecular transition-metal-substituted Keggin POMs that support a binuclear copper-acetate complex.Despite the different nature of the POMs, the crystal packing of the two compounds is closely related, beingformed of hybrid parallel layers that give rise to an alternate sequence of inorganic and metalorganic regions. Thispacking type seems to be determined by the extensive network of weak intermolecular interactions established bythe dicopper complexes, as a Hirshfeld surface analysis shows. Electron paramagnetic resonance studies indicatethat both the supported [Cu2(ac)2(phen)2(H2O)]2+ complexes and the copper(II)-monosubstituted POMs are magneticallyisolated.