The Molybdenum-Molybdenum Triple Bond. 9. Bis(1,3-di-p-Tolyltriazenido)bis(Dimethylamido)Dimethyldimolybdenum.
Abstract
1,2-Mo2Me2(NMe2)4 reacts in hydrocarbon solvents with 1,3-di-p-tolyl-triazine, C7H8NNNHC7H8, to give the title compound as a red crystalline solid. An X-ray study shows that in the solid state, the molecule has a crystallographically imposed C2 axis of symmetry. The Mo=Mo bond, 2.174(1)angstroms, is bridged by a cis-pair of triazenido ligands which afford sufficient flexibility to allow a non-eclipsed geometry. Each molybdenum atom is coordinated to three nitrogen atoms and one carbon atom which roughly lie in a plane. Pertinent bond distances are Mo-C (methyl) = 2.193(4) angstroms, Mo-N (dimethylamido) = 1.948(3) angstroms, Mo-N (triazinido) = 2.157(3) and 2.283(3) angstroms, with the longer distance associated with the Mo-N bond which is trans to the Mo-CH3 bond. These observations are compared with other findings in dimolybdenum and ditungsten chemistry (M=M). Crystal data for Mo2Me2(NMe2)2-(C7H8N3C7H8)2 are a = 21.608(5) angstroms, b = 9.440(2) angstroms, c = 24.076(6) angstroms, = 135.49(1), V = 3442.5(1) angstroms(cubed), Z = 4, d sub calcd = 1.464 g cc and space group C2/c. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 31, 1980
- Accession Number
- ADA091550
Entities
People
- D. A. Haitko
- J. C. Huffman
- K. Folting
- Malcolm H. Crisholm
Organizations
- Indiana University