Structural and theoretical insights into the perturbation of uranium-rhenium bonds by dative Lewis base ancillary ligands.
Amine-elimination gave the two uranium-rhenium complexes [(Ts(Xy))(THF)(n)URe(η(5)-C(5)H(5))(2)] [Ts(Xy) = HC(SiMe(2)N-3,5-Me(2)C(6)H(3))(3); n = 0 or 1]; structural and theoretical analyses, and comparison to [(Tren(TMS))URe(η(5)-C(5)H(5))(2)] [Tren(TMS) = N(CH(2)CH(2)NSiMe(3))(3)], reveal an increasing σ-component to the U-Re bond upon removal of dative ancillary ligands from uranium with the π-component remaining essentially invariant.
Patel
Dipti
D
School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK.
King
David M
DM
Gardner
Benedict M
BM
McMaster
Jonathan
J
Lewis
William
W
Blake
Alexander J
AJ
Liddle
Stephen T
ST
D000588:Amines / Q000737:chemistry; D018360:Crystallography, X-Ray; D008024:Ligands; D008958:Models, Molecular; D056004:Molecular Dynamics Simulation; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D012211:Rhenium / Q000737:chemistry*; D013237:Stereoisomerism; D014501:Uranium / Q000737:chemistry*
D000588:Amines; D008024:Ligands; D009942:Organometallic Compounds; D014501:Uranium; D012211:Rhenium