Unusual anion effect on the direction of three-dimensional (3-D) channel-like silver(I) coordination frameworks with isonicotinic acid N-oxide

Abstract

Reaction of isonicotinic acid N-oxide (HINO) with AgClO4 or AgBF4 under similar conditions unexpectedly generates two distinct crystalline products {[Ag3(INO)2(HINO)2]·(ClO4)}n (1) and {[Ag(INO)]·(H2O)}n (2). Complex 1 consists of a 3-D cationic net with mixed-connected topology and the included perchlorate counterions, whereas 2 has a 3-D neutral open framework (4-connected crb topology) with the accommodation of lattice water. The anion exchange/competition and guest desorption/adsorption behavior have also been thoroughly explored.