Preparation and structures of the cluster dimers consisting of Rh2Mo2S4 single-cubane units connected by two bidentate N-donor ligands
摘要:
Reactions of a single-cubane cluster [{Rh(cod)}(2){MoCl(dtc)}(2)(mu(3)-S)(4)] (cod = 1,5-cyclooctadiene, dtc = diethyldithiocarbamate) with 1 equiv. of L (L = pyrazine, 4,4'-bipyridyl, trans-1,2-bis(4-pyridyl)ethylene) in the presence of 2 equiv. of AgBF(4) in CH(2)Cl(2) gave doubly bridged double-cubane clusters [{IRh(cod)}(2){Mo(dtc)}(2)(mu(3)-S)(4))(2)(mu-L)(2)][BF(4)](4), whose structures were determined by the single-crystal X-ray analysis. (c) 2005 Elsevier B.V. All rights reserved.