一种含有锇（IV）末端组分的铅-μ-特丁基配合物。
A Lead-μ-Tetrylide Complex with Osmium(IV) Terminal Components.
作者信息
Cabeza Javier A, Esteruelas Miguel A, Fernández Israel, Izquierdo Susana, Oñate Enrique
机构信息
Departamento de Química Orgánica e Inorgánica, Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Oviedo, 33071 Oviedo, Spain.
Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain.
出版信息
Inorg Chem. 2024 Aug 26;63(34):15563-15567. doi: 10.1021/acs.inorgchem.4c02520. Epub 2024 Aug 5.
A bare lead atom is a σ-donor ligand capable of linearly bonding and stabilizing two units of a classical polyhydride complex, with a high-valent metal center. As a proof of concept, we have prepared and characterized the μ-tetrylide complex (PPr)HOs═Pb═OsH(PPr) in the reaction of OsH(PPr) with Pb{N(SiMe)}. Although the Pb-Os bonds exhibit electrostatic interaction, the main orbital interactions result from two dative σ bonds from the lead atom to the osmium centers. The latter also provide much weaker π-backdonations.
一个裸铅原子是一种σ供体配体，能够与一个高价金属中心线性键合并稳定两个经典多氢化物配合物单元。作为概念验证，我们在OsH(PPr)与Pb{N(SiMe)}的反应中制备并表征了μ-四价体配合物(PPr)HOs═Pb═OsH(PPr)。尽管Pb-Os键表现出静电相互作用，但主要的轨道相互作用来自铅原子与锇中心之间的两个配位σ键。后者还提供弱得多的π反馈。
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