期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 23, 期 66, 页码 16748-16752出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201704782
关键词
arsenic; multiple bonds; organometallic phosphorous; thorium
资金
- U.S. Department of Energy, Office of Science, Early Career Research Program [DE-SC-0014174]
- CSUEB Center for Student Research
The complexes (C5Me5)(2)Th(EHTipp)(2), (E = P or As; Tipp = 2,4,6-triisopropylphenyl), provide a ligand framework that results in facile access to rare Th-E multiple bonds. The reaction of (C5Me5)(2)Th(EHTipp)(2) with KN(SiMe3)(2), proceeds cleanly to the desired bridging phosphinidiide or arsinidiide complex, [{(C5Me5)(2)Th(mu(2)-ETipp)(mu(2)-EHTipp)}K](2) under ambient conditions. In the absence of a chelating agent, the potassium cation of one monomeric unit interacts with the aryl ring of a second monomer to form a bridged dimer. In the presence of 2,2,2-cryptand, the terminal phosphinidene complex, [(C5Me5)(2)Th =PTipp(PHTipp)][K(2,2,2-cryptand)] is isolated. Using X-ray crystallographic analysis, we have determined these complexes display the shortest Th P and Th-As bond lengths reported.
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