title: Lambda-[1,4,7,10-tetrakis[(S)-2-hydroxypropyl-kappaO]-1,4,7,10-tetraazacyclododecane-kappa4N]cadmium(II) bis(2,4,6-trinitrophenolate) acetonitrile solvate.
abstract: Crystallization of [Cd(S-thpc12)](ClO(4))(2) x H(2)O [S-thpc12 is 1,4,7,10-tetrakis[(S)-2-hydroxypropyl]-1,4,7,10-tetraazacyclododecane] in the presence of two equivalents of sodium picrate monohydrate (sodium 2,4,6-trinitrophenolate monohydrate) diastereoselectively produces a neutral receptor complex, viz. the title compound, lambda-[Cd(C(20)H(44)N(4)O(4))](C(6)H(2)N(3)O(7))(2) x CH(3)CN. In this complex, two picrate anions hydrogen bond, via their phenolate moieties, to the pendant hydroxyl groups of the receptor which, together with the four N atoms, themselves bond to Cd(II) in an approximately cubic arrangement. One picrate anion hydrogen bonds to all four hydroxyl groups, one of which also acts as the sole hydrogen-bond donor to the second picrate anion.
authors.affiliation: School of Chemistry, Physics and Earth Sciences, The Flinders University of South Australia, GPO Box 2100, Adelaide, SA 5001, Australia.
authors.forename: Christopher B
authors.initials: CB
authors.lastname: Smith
authors.forename: Stephen F
authors.initials: SF
authors.lastname: Lincoln
authors.forename: Max R
authors.initials: MR
authors.lastname: Taylor
authors.forename: Kevin P
authors.initials: KP
authors.lastname: Wainwright