Bairagi Subhash, Chatterjee Debipada, Giri Soumen, Ghosh Sundargopal
Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India.
Chem Commun (Camb). 2025 Feb 25;61(18):3696-3699. doi: 10.1039/d4cc06535b.
Unusual hypoelectronic -clusters, such as icosahedral [(CpTi)(BH)(μ-H)(μ-Cl)] (1) and tetracapped tetrahedral [{(CpTi)B}(μ-BH)(μ-Te)] (2), have been synthesized and structurally characterized. Clusters 1 and 2 represent the first examples of -titanaboranes having bridging hydrides, where the Ti⋯Ti interactions play a pivotal role in defining their shapes and electron counts. Furthermore, two face-fused clusters, [(Cp*Ti)(μ-Se)(μ-SePh)(μ-η:η-BHR)] (3a: R = H; 3b: R = Ph), have been isolated that deviate from Mingos fusion formalism.
已合成并通过结构表征了不寻常的缺电子簇，如二十面体的[(CpTi)(BH)(μ-H)(μ-Cl)] (1) 和四帽四面体的[{(CpTi)B}(μ-BH)(μ-Te)] (2)。簇1和2代表了具有桥连氢化物的钛硼烷的首个实例，其中Ti⋯Ti相互作用在确定它们的形状和电子数方面起着关键作用。此外，还分离出了两个偏离明戈斯融合形式主义的面稠合簇，[(Cp*Ti)(μ-Se)(μ-SePh)(μ-η:η-BHR)] (3a: R = H; 3b: R = Ph)。
