Stannylium ions, a tin(II) arene complex, and a tin dication stabilized by weakly coordinating anions.
Stannylium ions, a tin(II) arene complex, and a tin dication stabilized by weakly coordinating anions.
复制标题
锡离子、锡(II)芳烃络合物和由弱配位阴离子稳定的锡阳离子。
作者：
Annemarie Schäfer;F. Winter;W. Saak;D. Haase;R. Pöttgen;T. Müller
研究了芳基取代的锡炔Ar(2)Sn(4)对硼酸硅铵[R(3)SiArH][B(C(6)F(5))(4)](3)的反应性。与2,3,4-三甲基-6-叔丁基苯基（mebp）取代的锡炔反应得到硅基取代的锡离子2a，b，并通过核磁共振光谱对其进行了表征，分子结构和磁性能的量子力学计算结果也支持了这两个离子的表征。三异丙基苯基取代的锡离子2c，d在甲苯中发生分解反应，得到指示锡-芳烃配合物[Sn(C(7)H(8))(3)](2+)(5)，以[B(C(6)F(5))(4)]盐的形式高产。用单晶x射线衍射分析和Mössbauer光谱法鉴定了5[B(C(6)F(5))(4)](2)盐。利用自然键轨道（NBO）和分子中原子量子理论（QTAIM）计算研究了成键情况。碳酸盐[CB(11)H(6)Br(6)]（-）取代弱配位硼酸盐阴离子导致甲苯配体的取代，形成锡（II）碳酸盐，只有弱的Sn（2+）阴离子相互作用，这是由分离盐的固态结构所表明的。
The reactivity of aryl-substituted stannylenes, Ar(2)Sn (4), towards silylarenium borates, [R(3)SiArH][B(C(6)F(5))(4)] (3), was investigated. The reaction with 2,3,4-trimethyl-6-tert-butylphenyl (mebp)-substituted stannylene gave silyl-substituted stannylium ions 2a,b, which were characterized by NMR spectroscopy supported by the results of quantum-mechanical computations of molecular structures and magnetic properties. The tri-iso-propylphenyl-substituted stannylium ions 2c,d undergo a decomposition reaction in toluene to give the dicationic tin-arene complex [Sn(C(7)H(8))(3)](2+) (5) in the form of the [B(C(6)F(5))(4)] salt in high yields. The 5[B(C(6)F(5))(4)](2) salt was identified by single crystal X-ray diffraction analysis and by Mössbauer spectroscopy. The bonding situation was investigated by using natural bond orbital (NBO) and quantum theory of atoms in molecules (QTAIM) calculations. The substitution of the weakly coordinating borate anion by the carboranate [CB(11)H(6)Br(6)](-) results in replacement of the toluene ligands and formation of tin(II) carboranate with only weak Sn(2+)-anion interactions as suggested by the solid-state structure of the isolated salt.
影响因子：
18.3
作者：
Reed CA
通讯作者：
Reed CA
硅咪唑鎓和硅咪唑啉鎓离子
影响因子：
4
作者：
Annemarie Schäfer;André Schäfer;Thomas Müller
通讯作者：
Thomas Müller