title: A tetranuclear organotin compound consisting of a core of three fused Sn2O2 rings.
abstract: The crystal structure of the tetranuclear organotin compound 1,1,3,3,5,5,7,7-octabutyl-7-((E)-2-cyano-3-{9-[2-(2-methoxyethoxy)ethyl]-9H-carbazol-3-yl}prop-2-enoyloxy)-4,8-dimethyl-2,4,6,8-tetroxa-1,3,5,7-tetrastannatricyclo[4.2.0.0(2,5)]oct-3-yl (E)-2-cyano-3-{9-[2-(2-methoxyethoxy)ethyl]-9H-carbazol-3-yl}prop-2-enoate, [Sn4(C4H9)8(C21H19N2O4)2(CH3O)2(μ3-O)2], consists of a core of three fused Sn2O2 rings. The central ring consists of two Sn atoms each coordinated by two n-butyl chains, two μ3-bridging O atoms and one μ2-bridging methanolate O atom. The peripheral Sn2O2 rings consist of one of the central ring Sn atoms, and an Sn coordinated by one μ3-bridging O atom, one μ2-bridging methanolate O atom, two n-butyl chains and the carboxylate O atom of a (E)-2-cyano-3-{9-[2-(2-methoxyethoxy)ethyl]-9H-carbazol-3-yl}prop-2-enoate ligand (L). Despite an apparent centrosymmetric nature, the complex does not crystallize about an inversion centre. The structure packs with π-π interactions between carbazole moieties on adjacent molecules.
authors: Deparment of Chemistry, Anhui University, Hefei 230601, People's Republic of China.
authors: Hui
authors: H
authors: Wang
authors: Deparment of Chemistry, Anhui University, Hefei 230601, People's Republic of China.
authors: Wen-Mo
authors: WM
authors: Liu
authors: Deparment of Chemistry, Anhui University, Hefei 230601, People's Republic of China.
authors: Jun
authors: J
authors: Zhang
authors: Deparment of Chemistry, Anhui University, Hefei 230601, People's Republic of China.
authors: Jie-Ying
authors: JY
authors: Wu
authors: Deparment of Chemistry, Anhui University, Hefei 230601, People's Republic of China.
authors: Yu-Peng
authors: YP
authors: Tian
mesh_terms: D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D008024:Ligands; D008958:Models, Molecular; D015394:Molecular Structure; D009947:Organotin Compounds / Q000737:chemistry*; D017971:Tin Compounds / Q000737:chemistry*
chemical_list: D008024:Ligands; D009947:Organotin Compounds; D017971:Tin Compounds; C045358:stannic oxide
keywords: crystal structure; fused Sn2O2 rings; tetranuclear organotin compound; π–π interactions