Mercury(II) Complexes of the Carba-<i>closo</i>-dodecaboranyl Ligands [<i>closo</i>-1-CB<sub>11</sub>X<sub>11</sub>]<sup>2–</sup> (X = H, F, Cl, Br, I)
作者:Alexander Himmelspach、Jan A. P. Sprenger、Jonas Warneke、Manfred Zähres、Maik Finze
DOI:10.1021/om201023h
日期:2012.2.27
the mercury(II) complexes [Hg(closo-1-CB11X11)2]2– (X = H (1), Cl (3), Br (4)) and [PhHg(closo-1-CB11X11)]− (X = H (6), Cl (8), Br (9), I (10)) were synthesized and characterized by multi-NMR spectroscopy, mass spectrometry, elemental analysis, and differential scanning calorimetry. Single crystals of Cs21·2Et2O, Cs23·MeCN, Cs24·4Me2CO, Cs9, and [Et4N]6·0.5Me2CO were studied by X-ray diffraction, and
汞(II)配合物的盐[汞柱(闭合碳-1-CB 11 X 11)2 ] 2- (X = H(1),CL(3),溴(4))和[PhHg(闭合碳-1- CB 11 X 11)] --(X = H(6),Cl(8),Br(9),I(10))并通过多核磁共振光谱,质谱,元素分析和差示扫描量热法进行了表征。Cs 2 1 ·2Et 2 O,Cs 2 3的单晶用X射线衍射研究了MeCN,Cs 2 4 ·4Me 2 CO,Cs 9和[Et 4 N] 6 ·0.5Me 2 CO,并通过理论数据支持了键性质的解释。与此相反的先前公布的[Hg(上的汞原子闭合碳-1-CB 11 ˚F 11)2 ] 2-(2),其坐标乙腈或水,相关双阴离子配合物的金属原子1,3,及4没有透露任何进一步的协调。根据DFT和从头算计算得出的结果,这种不同的行为是在以下情况下得出的:在1情况下,汞的路易斯酸度降低,在3和4情况下,由于中心