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首页> 外文期刊>Organometallics >Synthesis and reactivity of intramolecularly stabilized organotin compounds containing the C,N-chelating o-carboranylamino ligand [o-C2B10H10(CH2NMe2)-C,N](-) (Cab(C,N)). X-ray structures of (Cab(C,N))SnR2X (R = Me, X = Cl; R = Ph, X = Cl), (Cab(C,N)
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Synthesis and reactivity of intramolecularly stabilized organotin compounds containing the C,N-chelating o-carboranylamino ligand [o-C2B10H10(CH2NMe2)-C,N](-) (Cab(C,N)). X-ray structures of (Cab(C,N))SnR2X (R = Me, X = Cl; R = Ph, X = Cl), (Cab(C,N)

机译：含有C，N螯合邻氨基甲酰基氨基配体[o-C2B10H10（CH2NMe2）-C，N]（-）（Cab（C，N））的分子内稳定的有机锡化合物的合成和反应性。 （Cab（C，N））SnR2X（R = Me，X = Cl; R = Ph，X = Cl），（Cab（C，N）的X射线结构

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A variety of organotin complexes, containing the o-carboranylamino ligand (Cab(C,N)), has been prepared by the reaction of LiCab(C,N) (1) with organotin halides or tin tetrachloride. In this way, the tetraorganotin compound (Cab(C,N))SnMe3 (2), triorganotin halide (Cab(C,N))SnMe3 (3: R = Me, X = Cl, 3a; R = Ph, X = Cl, 3b; R = Me, X = Pr, 3c), diorganotin dichloride (Cab(C,N))SnPhCl2 (4), and monoorganotin trichloride (Cab(C,N))SnCl3 (5) have been synthesized and characterized. H-1 and Sn-119 NMR spectroscopy indicates that the tin center in the tetraorganotin compound 2 is tetracoordinate, whereas this center in mono-, di-, and triorganotin compounds 3-5 is pentacoordinate as a resu of intramolecular Sn-N coordination. Complexes 3a,c were also formed by redistribution of(Cab(C,N))SnMe3 (2) with the corresponding Me2SnX2 (X = Cl, Pr). The molecular structures of 3a,b were determined by X-ray analysis. As a result of the Sn-N interaction, the tin atoms in 3a,b exhibit distorted-trigonal-bipyramidal configurations with the electronegative atoms (N and Cl) in apical positions. The reaction of 2 equiv of 2 with HgCl2 resulted in transmetalation of (Cab(C,N))SnMe3 (2), giving the diorganomercury compound (Cab(C,N))(2)Hg (6). The structure of 6 was determined by an X-ray structural study. The mercury atom is four-coordinate, both nitrogen atoms being involved in intramolecular coordination. The reaction of 3c with Na in a 1:1 ratio afforded the bis(o-carboranylamino)distannane [(Cab(C,N))SnMe2](2) (7). The crystal structure of 7 was determined by an X-ray structural study. The two four-coordinate tin moieties exhibit approximately pseudotetrahedral geometries showing only negligible, if any, interactions between the tin atoms and the amino nitrogen atoms. [References: 64]
机译：通过使LiCab（C，N）（1）与有机锡卤化物或四氯化锡反应，可以制备出多种含有邻氨基甲酰基氨基配体（Cab（C，N））的有机锡配合物。这样，四有机锡化合物（Cab（C，N））SnMe3（2），三有机锡卤化物（Cab（C，N））SnMe3（3：R = Me，X = Cl，3a; R = Ph，X = Cl，3b; R = Me，X = Pr，3c），二氯化二有机锡（Cab（C，N））SnPhCl2（4）和一氯化三有机锡（Cab（C，N））SnCl3（5）的合成和表征。 H-1和Sn-119 NMR光谱表明，四有机锡化合物2中的锡中心为四配位，而一，二和三有机锡化合物3-5中的锡中心为五配位。分子内Sn-N配位配合物3a，c也是通过（Cab（C，N））SnMe3（2）与相应的Me2SnX2（X = Cl，Pr）重新分布而形成的。通过X射线分析确定3a，b的分子结构。由于Sn-N相互作用，3a，b中的锡原子呈现出扭曲的三角双锥体构型，且负电性原子（N和Cl）位于顶端位置。 2当量2与HgCl2的反应导致（Cab（C，N））SnMe3（2）的金属转移，得到二有机聚汞化合物（Cab（C，N））（2）Hg（6）。通过X射线结构研究确定6的结构。汞原子是四配位的，两个氮原子都参与分子内配位。 3c与Na的比例为1：1的反应得到双（邻-碳硼烷基氨基）二锡烷[（Cab（C，N））SnMe2]（2）（7）。 X射线结构研究确定了7的晶体结构。两个四个四坐标的锡部分显示出近似伪四面体的几何形状，显示出锡原子和氨基氮原子之间的相互作用（如果有的话）仅可忽略不计。 [参考：64]

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