Synthesis, characterization, and reactivity of the first uranium metallocene 1,2 bis(diphenylphosphino)acetylene complexes.
Journal Article
·
· Inorganica Chimica Acta
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Two new uranium metallacyclopropenes, (C5Me4R)2U(η2-Ph2PC=CPPh2) (R = Me, Et) were prepared by reducing the corresponding (C5Me4R)2UCl2 complexes with KC8 in the presence of 1,2-bis(diphenylphosphino)acetylene (Ph2P–C≡C–PPh2). Both compounds were fully characterized by a combination of elemental analysis and multinuclear NMR, UV–visible–NIR, and IR spectroscopies. Differences in the electronic spectra of these novel compounds and the known (C5Me5)2U(η2-Me3SiC=CSiMe3) are discussed. Finally, also presented is the solid-state structure of (C5Me4Et)2U(η2-Ph2PC=CPPh2), which reveals significant distortions of the coordinated 1,2-bis(diphenylphosphino)acetylene (Ph2P–C≡C–PPh2) ligand.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA); USDOE Laboratory Directed Research and Development (LDRD) Program
- Grant/Contract Number:
- AC52-06NA25396
- OSTI ID:
- 1454999
- Alternate ID(s):
- OSTI ID: 1601299
- Report Number(s):
- LA-UR-17-31363; TRN: US1901188
- Journal Information:
- Inorganica Chimica Acta, Vol. 482; ISSN 0020-1693
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 10 works
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