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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Amido-bridged double-cube nitrido complexes containing titanium and magnesium/calcium
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Amido-bridged double-cube nitrido complexes containing titanium and magnesium/calcium

机译:含钛和镁/钙的酰胺桥联双立方亚硝基络合物

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Treatment of the single cube nitrido complexes [(thf)_x{(Me_3Si)_2N}M{(mu_3-N)(mu_3-NH)_2Ti_3(eta~5-C_5Me_5)_3(mu_3-N)}](M = Mg,x = 0;Ca,x = 1)with one equivalent of anilines NH_2Ar in toluene affords the arylamido complexes [(ArHN)M{(mu_3-N)(mu_3-NH)_2Ti_3(eta~5-C_5Me_5)_3(mu_3-N)}]_n [M = Mg(3),n = 1,Ar = 4-MeC_6H_4;Ca(4),n = 2,Ar = 2,4,6-Me_3C_6H_2].The magnesium complex 3 has a single-cube structure whereas the X-ray crystal structure of the analogous calcium derivative 4 shows two cube-type azaheterometallocubane moieties "Ca{(mu_3-N)(mu_3-NH)_2Ti_3(eta~5-C_5Me_5)_3(mu_3-N)}" held together by two mu-2,4,6-trimethylanilido ligands.Complexes 3 and 4 react with chloroform-d,at room temperature to give the metal halide adducts [Cl_2M{mu_3-NH)_3Ti_3(eta~5-C_5Me_5)_3(mu_3-N)}](M = Mg,Ca).A solution of 3 in n-hexane gave complex [{Mg_2(mu_3-N)(mu_3-NH)_5[Ti_3(eta~5-C_5Me_5)_3(mu_3-N)]_2}(mu-NHAr)_3] which shows three mu-4-methylanilido ligands bridging two [MgTi_3N_4] cube type cores according to an X-ray crystal structure determination.
机译:单立方氮化物络合物的处理[(thf)_x {(Me_3Si)_2N} M {(mu_3-N)(mu_3-NH)_2Ti_3(eta〜5-C_5Me_5)_3(mu_3-N)}] [M = Mg ,x = 0; Ca,x = 1)与一当量的苯胺NH_2Ar在甲苯中提供芳酰胺基络合物[(ArHN)M {(mu_3-N)(mu_3-NH)_2Ti_3(eta〜5-C_5Me_5)_3(mu_3 -N)}] _ n [M = Mg(3),n = 1,Ar = 4-MeC_6H_4; Ca(4),n = 2,Ar = 2,4,6-Me_3C_6H_2]。镁络合物3具有一个单钙立方结构,而类似钙衍生物4的X射线晶体结构则显示两个立方型氮杂杂金属古巴部分“ Ca {(mu_3-N)(mu_3-NH)_2Ti_3(eta〜5-C_5Me_5)_3(mu_3-N )}”由两个mu-2,4,6-三甲基苯胺基配体结合在一起。络合物3和4在室温下与氯仿-d反应,得到金属卤化物加合物[Cl_2M {mu_3-NH)_3Ti_3(eta〜5-) C_5Me_5)_3(mu_3-N)}](M = Mg,Ca)。3在正己烷中的溶液得到复合物[{Mg_2(mu_3-N)(mu_3-NH)_5 [Ti_3(eta〜5-C_5Me_5) )_3(mu_3-N)] _ 2}(mu-NHAr)_3]显示了三个mu-4-methylanilido配体桥接两个[MgTi_3N_4]立方型核根据X射线晶体结构确定。

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