Condensed Tantalaborane Clusters: Synthesis and Structures of [(Cp*Ta)2B5H7{Fe(CO)3}2] and [(Cp*Ta)2B5H9{Fe(CO)3}4]
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https://figshare.com/articles/dataset/Condensed_Tantalaborane_Clusters_Synthesis_and_Structures_of_Cp_Ta_sub_2_sub_B_sub_5_sub_H_sub_7_sub_Fe_CO_sub_3_sub_sub_2_sub_and_Cp_Ta_sub_2_sub_B_sub_5_sub_H_sub_9_sub_Fe_CO_sub_3_sub_sub_4_sub_/2680798
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The reaction of [(Cp*Ta)2B4H9(μ-BH4)] (1; Cp* = η5-C5Me5) with [Fe2(CO)9] in hexane yielded [(Cp*Ta)2B5H7{Fe(CO)3}2] (2) and [(Cp*Ta)2B5H9{Fe(CO)3}4] (3) in moderate yield. Cluster 2 represents the first example of a bicapped pentagonal-bipyramidal metallaborane with a deformed equatorial plane, and 3 can be described as a fused cluster in which two pentagonal-bipyramidal units are fused through a common 3-vertex triangular face. Compounds 2 and 3 have been characterized by mass spectrometry and IR, 1H, 11B, and 13C NMR spectroscopy, and the geometric structures were unequivocally established by crystallographic analysis.
创建时间:
2016-02-23



