Preparation of tetraalkyl phosphine complexes of the f-block metals. Crystal structure of Th(CH/sub 2/Ph)/sub 4/(Me/sub 2/PCH/sub 2/CH/sub 2/PMe/sub 2/) and U(CH/sub 2/Ph)/sub 3/Me(Me/sub 2/PCH/sub 2/CH/sub 2/PMe/sub 2/)

Journal Article · Sun Jan 01 00:00:00 EST 1984 · Organometallics; (United States)

DOI:https://doi.org/10.1021/om00080a023· OSTI ID:5814605

Edwards, P G; Andersen, R A; Zalkin, A

Reaction of 4 molar equiv of PhCH/sub 2/Li with MCl/sub 4/(Me/sub 2/PCH/sub 2/CH/sub 2/PMe/sub 2/)/sub 2/ gives M(CH/sub 2/Ph)/sub 4/ (Me/sub 2/PCH/sub 2/CH/sub 2/PMe/sub 2/), where M is Th or U. Reaction of a mixture of 3 molar equiv of PhCH/sub 2/Li and 1 molar equiv of MeLi with MCl/sub 4/(Me/sub 2/PCH/sub 2/CH/sub 2/PMe/sub 2/)/sub 2/ gives the unsymmetrical alkyls M(CH/sub 2/Ph)/sub 3/Me(Me/sub 2/PCH/sub 2/CH/sub 2/PMe/sub 2/), where M is Th or U. The molecular structure of Th(CH/sub 2/C/sub 6/H/sub 5/)/sub 4/(Me/sub 2/PCH/sub 2/CH/sub 2/PMe/sub 2/) and U(CH/sub 2/C/sub 6/H/sub 5/)/sub 3/Me(Me/sub 2/PCH/sub 2/CH/sub 2/PMe/sub 2/) were determined by single-crystal X-ray diffraction methods, and the crystal parameters are reported. In the Th complex there are two independent molecules in the unit cell. The Th atoms are each bonded to four benzyl groups and to two phosphorus atoms from the bis(dimethylphosphino)ethane ligand; the average Th-C distance is 2.55 (2) A, and the average Th-P distance is 3.17 (3) A. In the U complex the uranium atom is bonded to a methyl group, three benzyl groups, and the two phosphorus atoms of the bis(dimethylphosphino)ethane ligand. The U-C(methyl) distance is 2.41 (1) A; the average U-C(benzyl) distance is 2.50 (4) A. 23 references, 3 figures, 7 tables.

• Research Organization: Univ. of California, Berkeley
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5814605
• Journal Information: Organometallics; (United States), Vol. 3:2
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
HETEROCYCLIC COMPOUNDS
CHEMICAL PREPARATION
CRYSTAL STRUCTURE
MOLECULAR STRUCTURE
PHOSPHINES
THORIUM COMPOUNDS
URANIUM COMPOUNDS
EXPERIMENTAL DATA
X-RAY DIFFRACTION
ACTINIDE COMPOUNDS
COHERENT SCATTERING
DATA
DIFFRACTION
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
PHOSPHORUS COMPOUNDS
SCATTERING
SYNTHESIS
400301* - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)
400702 - Radiochemistry & Nuclear Chemistry- Properties of Radioactive Materials