Solid state structure of bis(pentamethylcyclopentadienyl)barium, (Me5C5)2Ba; the first X-ray crystal structure of an organobarium complex
作者:R. Allen Williams、Timothy P. Hanusa、John C. Huffman
DOI:10.1039/c39880001045
日期:——
The single crystalX-ray analysis of bis(pentamethylcyclopentadienyl)barium, (Me5C5)2Ba, at 118 K reveals a novel structure in which monomeric bent metallocenes with average Ba–C distances of 298.7(18) pm and ring centroid–Ba–ring centroid angles of 131° are grouped in ‘quasi-polymeric’ chains with the shortest intermolecular Ba–C(methyl) distance being 334.9(5) pm.
双(五甲基环戊二烯基)钡(Me 5 C 5)2 Ba在118 K的单晶X射线分析揭示了一种新颖的结构,其中平均Ba–C距离为298.7(18)pm的单体弯曲金属茂和环质心131°的-Ba-ring质心角归类于“准聚合”链中,分子间Ba-C(甲基)距离最短为334.9(5)pm。