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Uranium(IV) complexes with the oxygen tripod ligand L sup minus = CpCo(P(O)(OEt) sub 2 ) sub 3 sup minus. X-ray crystal structure of L sub 2 UCl sub 2

Journal Article · · Inorganic Chemistry; (United States)
DOI:https://doi.org/10.1021/ic00010a021· OSTI ID:6068317
; ; ;  [1];  [2]
  1. CEA CEN, Saclay (France)
  2. TH Aachen (West Germany)
Reaction of UX{sub 4} with NaL (L = (C{sub 5}H{sub 5})Co(P(O)(OEt){sub 2}){sub 3}) gave the complexes LUX{sub 3} (X =BH{sub 4} (1), CL (2)). The trichloride 2 reacted with NaL or TlCp (Cp = C{sub 5}H{sub 5}) to afford respectively the compounds L{sub 2}UCl{sub 2} (3) and LCpUCl{sub 2} (4). Crystals of 3 belong to space group P2{sub 1}/c. The unit cell has a = 13.229 (4) {angstrom}, b = 20.011 (2) {angstrom}, c = 21.080 (1) {angstrom}, {beta} = 103.97 (3) {degree}, V = 5415 (3) {angstrom}{sup 3} and contains four molecules. For the 2321 independent reflections with I > 3{sigma}(I), the final conventional and weighted discrepancy factors are 0.052 and 0.054, respectively. The geometry of the UO{sub 6}Cl{sub 2} core is intermediate between a bicapped trigonal prism and a square antiprism. The average U-Cl distance is 2.728 (8) {angstrom}, and the average U-O distance is 2.36 (5) {angstrom}. 17 refs., 3 figs., 3 tabs.
OSTI ID:
6068317
Journal Information:
Inorganic Chemistry; (United States), Journal Name: Inorganic Chemistry; (United States) Vol. 30:10; ISSN 0020-1669; ISSN INOCA
Country of Publication:
United States
Language:
English