Unusual anion effect on the direction of three-dimensional (3-D) channel-like silver(I) coordination frameworks with isonicotinic acid N-oxideElectronic supplementary information (ESI) available: Additional details of experiment, supplementary structural illustrations, powder X-ray diffraction (PXRD) patterns, IR spectra, the results of microanalysis, and a table for selective bond parameters. CCDC reference numbers 720711 and 720712. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/b903074c

Reaction of isonicotinic acid N-oxide (HINO) with AgClO4or AgBF4under similar conditions unexpectedly generates two distinct crystalline products {[Ag3(INO)2(HINO)2]·(ClO4)}n(1) and {[Ag(INO)]·(H2O)}n(2). Complex 1consists of a 3-D cationic net with mixed-connected topology and the included perchlorate counterions, whereas 2has a 3-D neutral open framework (4-connected crbtopology) with the accommodation of lattice water. The anion exchange/competition and guest desorption/adsorption behavior have also been thoroughly explored. [ABSTRACT FROM AUTHOR]