Journal
CHEMICAL COMMUNICATIONS
Volume 57, Issue 51, Pages 6316-6319Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1cc02040d
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Two different multinuclear metal hydrides were isolated in this study, and it was found that there is hydride ligand exchange between calcium and strontium centers, with a higher affinity of the hydride ligand toward calcium.
A trinuclear strontium hydride [(Me(4)TACD)(3)Sr-3(mu(2)-H)(4)(thf)][B(C6H3-3,5-Me-2)(4)](2) (Me(4)TACD = 1,4,7,10-tetramethyltetraazacyclododecane) and a mixed calcium strontium hydride [(Me(4)TACD)(2)CaSr(mu-H)(2)(thf)][B(C6H3-3,5-Me-2)(4)](2) were isolated by hydrogenolysis of cationic benzyl precursors. A solution of [(Me(4)TACD)(2)CaSr(mu-H)(2)(thf)][B(C6H3-3,5-Me-2)(4)](2) shows hydride ligand exchange between calcium and strontium centers and higher affinity of the hydride ligand toward calcium.
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