Synthesis, Characterization, and Crystal and Molecular Structure of Trimesitylgallium(III).
Abstract
The compound trimesitylgallium(III) (GaMes3) has been prepared and fully characterized by elemental analysis, IR and 1H NMR data, Lewis acid-base studies and an X-ray structural study. Trimesitylgallium(III) crystallizes in the centrosymmetric trigonal space group P3 (No. 147) with a=13.415(4)A, c= 7.628(2)A and rho(calc'd) = 1.9 g/cc for mol. wt. 427.3 and Z=2. Single crystal X-ray diffraction data (Mo K alpha, 2 theta = 4.0-40.0 deg) were collected with a Syntex P2 sub 1 automated four-circle diffractometer. All atoms (including hydrogen atoms) were located and the structure was refined to R sub F = 3.9% and R sub wF= 3.3% for all 743 unique reflections (none rejected). The gallium (III) atom lies on a site of crystallographically-imposed C3 symmetry (and approximate D3 symmetry) and has a trigonal planar stereochemistry (C(1)-Ga-C(1') = 119.93(16)degs) with a gallium-carbon bond length of 1.968(4)A. The aromatic rings of the mesityl ligands form a propeller-like arrangement about gallium with an angle of 55.9 degs between each ring and the metal coordination plane.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 25, 1986
- Accession Number
- ADA167016
Entities
People
- John C. Pazik
- Joseph W. Zi Ller
- Melvyn Rowen M.R. Churchill
- O. T. Beachley Jr.
Organizations
- University at Buffalo