Journal article
An unusual change in the bonding mode of a bridging alkylidene ligand. Structure of Cp(CO)3Mo-Mo(CAr2)(N2CAr2)Cp (Ar = p-tolyl)
Organometallics, Vol.6(8), pp.1713-1717
1987
DOI: 10.1021/om00151a017
Abstract
The bridging alkylidene complex Cp2Mo2(CO)4(M-CAr2) (Ar = p-tolyl) reacts with Ar2CN2to give the terminal alkylidene complex Cp(CO)3Mo-Mo(CAr2)(N2CAr2)Cp (2) in high yield. In this reaction, the bridging diarylalkylidene ligand changes its bonding mode from bridging to terminal, one carbonyl group is lost, and another is transferred across the Mo-Mo bond, and the diazoalkane ligand becomes bonded to one Mo via a MoɳN triple bond. A mechanism is proposed for this reaction, and the solid-state structure and unusual behavior in solution of 2 are reported. Relevant crystallographic data: a = 12.247 (6) A, b = 14.462 (7) A, c = 11.486 (5) A; a = 113.22 (3)°, 0 = 95.60 (4)°, 7 = 90.32 (4)°; V = 1858 (1) A12 3 4 56; Z = 2, Pealed=1.47g/mL; space group P1; Pj = 0.053, P2=0.054 on 2396 reflections with I > 3
Details
- Title: Subtitle
- An unusual change in the bonding mode of a bridging alkylidene ligand. Structure of Cp(CO)3Mo-Mo(CAr2)(N2CAr2)Cp (Ar = p-tolyl)
- Creators
- M. D Curtis - Univ. Michigan, dep. chemistry, Ann Arbor MI 48109-1055, United StatesL Messerle - Univ. Michigan, dep. chemistry, Ann Arbor MI 48109-1055, United States
- Resource Type
- Journal article
- Publication Details
- Organometallics, Vol.6(8), pp.1713-1717
- Publisher
- American Chemical Society
- DOI
- 10.1021/om00151a017
- ISSN
- 0276-7333
- eISSN
- 1520-6041
- Language
- English
- Date published
- 1987
- Academic Unit
- Chemistry; Radiology
- Record Identifier
- 9984216667102771
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