title: Octa-butyl-bis-(μ(2)-2-chloro-5-nitro-benzoato)bis-(2-chloro-5-nitro-benzoato)di-μ(3)-oxido-tetra-tin(IV).
abstract: The title complex, [Sn(4)(C(4)H(9))(8)(C(7)H(3)ClNO(4))(4)O(2)], is a cluster formed by a crystallographic inversion center around the central Sn(2)O(2) ring. Both of the two independent Sn atoms are five-coordinated, with distorted trigonal-bipyramidal SnC(2)O(3) geometries. One Sn atom is coordinated by two butyl groups, one O atom of the benzoate anion and two bridging O atoms, whereas the other Sn atom is coordinated by two butyl groups, two O atoms of the benzoate anions and a bridging O atom. The O atoms of the bridging benzoate anion are disordered over two sites with an occupancy ratio of 0.862 (12):0.138 (12). One of the butyl groups coordinated to the Sn(2)O(2) ring is disordered over two sites with an occupancy ratio of 0.780 (8):0.220 (8), whereas both of the two butyl groups coordinated to the other Sn atom are disordered over two sites with occupancy ratios of 0.788 (5):0.212 (5) and 0.827 (10):0.173 (10). All the butyl groups are equatorial with respect to the SnO(3) trigonal plane. In the crystal, complex mol-ecules are stacked down [010] with weak inter-molecular C-H⋯π inter-actions stabilizing the crystal structure.
authors: Yip-Foo
authors: YF
authors: Win
authors: Chen-Shang
authors: CS
authors: Choong
authors: Sie-Tiong
authors: ST
authors: Ha
authors: Jia Hao
authors: JH
authors: Goh
authors: Hoong-Kun
authors: HK
authors: Fun
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references: Acta Crystallogr Sect E Struct Rep Online. 2008 Nov 20;64(Pt 12):m1572-3
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references: Acta Crystallogr Sect E Struct Rep Online. 2010 Oct 13;66(Pt 11):m1406-7
references: 21588838