A variety of one-, two- and three-dimensional copper(I) and silver(I) co-ordination polymers assembled by 1,4-bis(4-pyridyl)butadiyne and 1,4-bis(2-pyridyl)butadiyne †

Abstract

Four copper(I) and six silver(I) novel co-ordination polymers linked by 1,4-bis(4-pyridyl)butadiyne (4-bpbd) or 1,4-bis(2-pyridyl)butadiyne (2-bpbd) were prepared and seven structures crystallographically characterized, in order to illustrate the structural versatility of co-ordination polymers assembled by the Group 11 metal ions and rod-like nitrogen bidentate ligands with long spacers. Reaction of appropriate copper(I) and silver(I) salts with the 4-bpbd ligand affords 2-D interwoven copper(I) co-ordination polymers {[Cu2(4-bpbd)3(CH3CN)2]X2}n (X = PF61a·2H2O or BF41b) and 1-D straight chain silver(I) co-ordination polymers {[Ag(4-bpbd)]X}n (X = NO32a·CH3CN, ClO42b·(CH3)2CO or CF3SO32c·(CH3)2CO), respectively. On the other hand, reaction of suitable salts with the 2-bpbd ligand provides a 3-D diamondoid copper(I) co-ordination polymer {[Cu(2-bpbd)2]BF4}n3b, a 1-D zigzag chain silver(I) co-ordination polymer {[Ag(2-bpbd)(NO3)]}n4a and a 2-D braid sheet silver(I) co-ordination polymer {[Ag(2-bpbd)(CF3SO3)]}n4c, respectively. On the basis of these structural studies, the unique structural features and the dimensionality of the copper(I) and silver(I) co-ordination polymers are revealed.