Three-dimensional triazenido layers attained through classical and non-classical hydrogen interactions and its coordination to palladium under prolific occurrence of bifurcated hydrogen bonding
作者:Davi Fernando Back、Manfredo Hörner、Fernanda Broch、Gelson Manzoni de Oliveira
DOI:10.1016/j.poly.2011.10.009
日期:2012.1
The new ligand 1,3-bis(3-methoxy-4-methylbenzoate) triazene (1, bmmbt), and the already known ligand 1,3-bis(4-acetylphenyl)triazene (bapht), yield the two new palladium(II) complexes [(bmmbt)Pd(PPh3)(2)Cl]center dot DMSO (2) and [(bapht)Pd(PPh3)(2)Cl] (3) (Ph = phenyl; DMSO = dimethylsulfoxide). Compound 1 shows the existence of more than one interaction promoting the coupling between the triazene chains. Other remarkable types of interactions in 1 are bifurcated hydrogen contacts and non-classical CH center dot center dot center dot pi bonding. Complexes 2 and 3 present a planar geometry, supported also through bifurcated intramolecular Cl center dot center dot center dot H-C interactions, as well as the occurrence of trifurcated Cl center dot center dot center dot H-C intermolecular interactions. (C) 2011 Elsevier Ltd. All rights reserved.