Temperature dependent selective gas sorption of the microporous metal-imidazolate framework [Cu(L)] [H 2 L = 1,4-di(1H-imidazol-4-yl)benzene]

A highly stable copper(II) microporous framework with cylindrical channels constructed from 1,4-di(1H-imidazol-4-yl)benzene (H(2)L) and CuCl(2)·2H(2)O is composed of Cu(II)-imidazolate tubes interconnected by the 1,4-phenylene group of L(2-), and shows temperature dependent selective gas sorption properties.