title: [μ-(4S,5S,15S,16S)-10,21-Di-tert-butyl-4,5,15,16-tetra-phenyl-3,6,14,17-tetra-aza-tricyclo-[17.3.1.1]tetra-cosa-1(23),8,10,12(24),19,21-hexa-ene-23,24-diolato-κN,N,O,O:NN,O,O]bis-[(acetato-κO)zinc(II)] ethanol disolvate.
abstract: In the title compound, [Zn(2)(C(36)H(42)N(4)O(2))(CH(3)COO)(2)]·2CH(3)CH(2)OH, a centrosymmetric dinuclear zinc macrocyclic complex is accompanied by two half-occupied ethanol solvent molecues resulting in a 1:2 macrocycle-solvent composition. The Zn(II) atom has a square-pyramidal geometry arising from an N(2)O(3) donor set, being coordinated by two N atoms and two O atoms from the macrocyclic ligand in the equatorial sites and one O atom from an acetate anion in the apical site. The two Zn(II) atoms are linked by two phenolate O atoms, generating a four-membered Zn(2)O(2) ring at the centre of the macrocycle. The tert-butyl group shows rotational disorder over two sets of sites in a 0.552 (12):0.448 (12) ratio. In the crystal, N-H⋯O and O-H⋯O hydrogen bonds are seen and a short intra-molecular C-H⋯O contact occurs.
authors.affiliation: Department of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China.
authors.forename: Li-Jing
authors.initials: LJ
authors.lastname: Fan
authors.forename: Jian-Fang
authors.initials: JF
authors.lastname: Ma
authors.forename: Jie
authors.initials: J
authors.lastname: Liu