Use of bis-aminoalcohol benzoquinones and dihydroxybenzoquinones in the formation of mono and polymeric structures of diorganotin(IV) derivatives
作者:Victor Barba、Jonathan Zaragoza、Herbert Höpfl、Norberto Farfán、Hiram I. Beltrán、Luis S. Zamudio-Rivera
DOI:10.1016/j.jorganchem.2010.10.040
日期:2011.5
Reaction of three hexadentate ligands (L1–L3) derived from 1,4-benzoquinone bis(aminoalcohols) with diorganotin oxides (R2Sn-O)n (with R = Me, nBu, Ph) in 1:2 stoichiometric proportions lead to the formation of dinuclear tin compounds of the composition [(R2Sn)2(L)], wherein the five-coordinate metal centers are embedded in distorted trigonal-bipyramidal polyhedra. X-ray diffraction analysis revealed
来自1,4-苯醌双(氨基醇)的三个六齿配体(L1 - L3)与二有机锡氧化物(R 2 Sn-O)n(R = Me,n Bu,Ph)的化学计量比为1:2的反应形成[[R 2 Sn)2(L)]组成的双核锡化合物,其中五个配位金属中心嵌入扭曲的三角-双锥体多面体中。X射线衍射分析表明,二有机锡复合物携带n丁基会通过分子间的O⋯Sn相互作用进一步缔合,从而形成一维聚合物链,而二苯基锡类似物往往是单体。另一方面,在与二有机锡氧化物衍生物的1:1反应中,使用2,5-二羟基-3,6-二氯-1,4-苯醌作为配体(L4),组成[R 2 Sn( L4)(DMSO)] n具有扭曲的五边形-双锥体配位多面体中的七个配位金属中心。在这种情况下,锡原子(Me,nBu,Ph)对产物的分子组成没有影响,但对聚合物链的构象没有影响,该聚合物链是平面的(R = Me),略微偏离平面度(R = n Bu)或是弯曲的(R = Ph