二-μ-烟碱酸根-κN:O;κO:N-双-[水合双-(4-溴苄基)(烟碱酸根-κO,O')锡(IV)]
Di-μ-nicotinato-κN:O;κO:N-bis-[aqua-bis-(4-bromo-benz-yl)(nicotinato-κO,O')tin(IV)].
作者信息
Keng Chun Thy, Lo Kong Mun, Ng Seik Weng
机构信息
Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia.
出版信息
Acta Crystallogr Sect E Struct Rep Online. 2010 Jul 24;66(Pt 8):m1008. doi: 10.1107/S1600536810028643.
Two nicotinate binding modes are observed in the dinuclear title compound, [Sn(2)(C(7)H(6)Br)(4)(C(6)H(4)NO(2))(4)(H(2)O)(2)]: in the first, a terminal O,O'-chelating molecule binds to a water-coordinated diorganotin cation, while the second mode corresponds to an O:N-bridging molecule which binds to two cations. The two Sn atoms exist in trans-C(2)SnNO(4) penta-gonal-bipyramidal geometries. Adjacent dinuclear units are linked by O-H⋯N hydrogen bonds, generating a linear chain, which propagates in the b-axis direction. O-H⋯O inter-actions are also observed.
在双核标题化合物[Sn₂(C₇H₆Br)₄(C₆H₄NO₂)₄(H₂O)₂]中观察到两种烟酸结合模式：第一种模式下，一个末端O,O'-螯合分子与一个与水配位的二有机锡阳离子结合；而第二种模式对应一个O:N-桥连分子，它与两个阳离子结合。两个Sn原子以反式-C₂SnNO₄五角双锥几何构型存在。相邻的双核单元通过O-H⋯N氢键相连，形成一条线性链，该链沿b轴方向延伸。还观察到O-H⋯O相互作用。
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