Rhodacarboranes containing σ- and π-carborane ligands. New aspectsстатья
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Дата последнего поиска статьи во внешних источниках: 4 июня 2021 г.
Аннотация:Number of novel charge-compensated rhodacarboranes with pyridinium group was synthesized and characterized. Synthesis of 16-electron 3,3-μ-(1’,2’-C2B10H10-1’,2’-S2-)-4-Py-3,1,2-RhC2B9H10 was accompanying by formation of several products. They were isolated and identified as two diastereomers of unusual dirhodacarboranes which contain two π-carboranyl and one σ-dithiolate ligands 3,3-μ3-(1’,2’-C2B10H10-1’,2’-S2-)-(4-Py-3,1,2-RhC2B9H10)2. Structure of the DD/LL-isomer was detemined by single crystal X-ray diffraction. Reaction the 16-electron complex with trimethylphosphine leads to corresponding 18-electron complex 3-PMe3-3,3-μ-(1’,2’-C2B10H10-1’,2’-S2-)-4-Py-3,1,2-RhC2B9H10. Its structure was also confirmed by single crystal X-ray diffraction.