Syntheses, structures and guest-adsorption properties of Ag(I) coordination polymers with 1,4-dicyanobenzene

摘要

Complexes {[Ag-5(CF3COO)(5)(1,4-dcb)(2)]center dot 2(C6H6)}(n) (1) and [Ag-2(CF3SO3) (2)(1,4-dcb)(2)(mu-H2O)](n) (2) were synthesized by reaction of 1,4-dicyanobenzene (1,4-dcb) with AgX (X=CF3COO- or CF3SO3-). Both of them have been characterized by FT-IR, elemental analysis and single-crystal X-ray diffraction. Complex 1 forms 2-D sheets which are constructed from cross-linked 1,4-dcb and 1-D silver(I) chains connecting through trifluoroacetate anions. Benzenes are intercalated as guests between the sheets of complex 1. Complex 2 forms double-strand chains which are built on bimetal centers bridged by a mu-H2O and double bridging 1,4-dcb ligands coordinating via terminal N-donors.