Issue 4, 2006

Solvent-induced supramolecular isomerism in silver(i) 2-methylimidazolate

Abstract

Three pseudo-polymorphs of silver(I) 2-methylimidazolates have been prepared via liquid diffusions with variations of the templating solvent molecules. Among them, the solvated isomers [Ag4(mim)4·(C6H6)] (1a, Pnna, a = 19.6228(8) Å, b = 10.4307(4) Å, c = 12.7867(5) Å, Hmim = 2-methylimidazole) and [Ag4(mim)4·(C8H10)] (1b, P21/c, a = 12.6836(16) Å, b = 19.726(2) Å, c = 11.1137(13) Å, β = 101.835(3)°) exhibit peculiar pseudo-81 helical and S-shaped chains, respectively, which are further extended through short interchain AgI⋯AgI contacts (2.9848(4) Å and 3.2451(2) Å for 1a, 3.0224(6) Å and 3.0744(6) Å for 1b) into complex 3-D networks, whereas the unsolvated isomer [Ag(mim)] (1c, P21/n, a = 7.8906(7) Å, b = 5.9706(5) Å, c = 10.8708(9) Å, β = 92.452(1)°) exhibits a simple zigzag chain without obvious intermolecular interactions.

Graphical abstract: Solvent-induced supramolecular isomerism in silver(i) 2-methylimidazolate

Supplementary files

Article information

Article type
Paper
Submitted
17 Feb 2006
Accepted
30 Mar 2006
First published
05 Apr 2006

CrystEngComm, 2006,8, 351-355

Solvent-induced supramolecular isomerism in silver(I) 2-methylimidazolate

X. Huang, D. Li and X. Chen, CrystEngComm, 2006, 8, 351 DOI: 10.1039/B602465C

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