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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Synthesis and Structure of New Calix[4]arene Titanium(IV) Imido Complexes
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Synthesis and Structure of New Calix[4]arene Titanium(IV) Imido Complexes

机译:新杯[4]芳烃钛(IV)亚氨基配合物的合成与结构

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摘要

The syntheses of the novel calix[4]arene titanium imido compounds [Cax(OMe)_2O_2Ti(NR)] (2) (R = tBu) and (3) (R = Mes = 2,4,6-trimethylphenyl) (Cax = C_(44)H_(52)) starting from [Cax(OMe)_2O_2TiCl_2] (1) and lithium amides LiNHR are described. Complexes 2 and 3 are mononuclear compounds in solution. An X-ray crystal structure analysis of the toluene adduct of 3 (Space group: P1, lattice dimensions: a = 12.979(2) A, b = 13.707(2) A, c = 16.573(3) A, #alpha# = 81.751(11) deg, #beta# = 80.555(13) deg, #gamma# = 73.541(12) deg) reveals that this compound is mononuclear in the solid state. The central atom in 3 is distorted trigonal bipyramidal ligated by two ether oxygen atoms in axial positions, two phenoxide oxygen atoms in the equatorial plane, and an imido nitrogen atom in an equatorial position. The titanium nitrogen bond distance in 3 is 171.8(3) pm.
机译:新型杯[4]亚芳基钛亚氨基化合物[Cax(OMe)_2O_2Ti(NR)](2)(R = tBu)和(3)(R = Mes = 2,4,6-三甲基苯基)(Cax从[Cax(OMe)_2O_2TiCl_2](1)开始的C =(44)H_(52))和酰胺化锂LiNHR被描述。配合物2和3是溶液中的单核化合物。甲苯加合物3的X射线晶体结构分析(空间群:P1,晶格尺寸:a = 12.979(2)A,b = 13.707(2)A,c = 16.573(3)A,#alpha#= 81.751(11)度,#beta#= 80.555(13)度,#gamma#= 73.541(12)度)表明该化合物为固态单核。 3中的中心原子是扭曲的三角双锥体,在轴向位置被两个醚氧原子,在赤道平面中被两个酚盐氧原子和在赤道位置被亚氨基氮原子连接。 3中的钛氮键距离为171.8(3)pm。

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