TERTIARY PHOSPHINE DERIVATIVES OF THE f-BLOCK METALS: PREPARATION OF X4M(Me2PCH2CH2PMe2)2, WHERE X IS HALIDE, METHYL AND PHENOXO AND M IS THORIUM OR URANIUM. CRYSTAL STRUCTURE OF TETRA(PHENOXO) BIS-[BIS (1,2-DIMETHYLPHOSPHINO)ETHANE] URANIUM (IV)

TETRAALKYL-PHOSPHINE COMPLEXES OF THE f-BLOCK METALS; PREPARATION AND CRYSTAL STRUCTURE OF Th (CH2Ph)4(Me2PCH2CH2PMe2) AND U(CH2Ph)3Me(Me2PCH2CH2 PMe2)

PREPARATION OF Mcl4(Me2ECH2CH2EMe2)2 AND MC14 [(1,2-Me2As)2C6H4]2 WHERE M IS THORIUM OR URANIUM AND E IS NITROGEN OR PHOSHORUS. CRYSTAL STRUCTURE OF UCl4 [(l,2-Me2As)2C6H4]2

Preparation and Synthetic Utility of MC1{sub 4} (Me{sub 2}NCH{sub 2}CH{sub 2}NMe{sub 2}){sub 2} Where M is Uranium or Thorium

Preparation and Crystal Structure of the Eight-Coordinate Complexes, Uranium Tetrachloridebis[1,2-dimethylarsinobenzene], UCl{sub 4}(diars){sub 2}, and Uraniumtetrachloride[1,2-dimethylphinobenzene], UCl{sub 4}(diphos){sub 2}