Document Type
Article
Language
eng
Publication Date
9-15-2007
Publisher
Elsevier
Source Publication
Journal of Organometallic Chemistry
Source ISSN
0022-328X
Abstract
Reactions of the labile compound [Re2(CO)8(MeCN)2] with thiazole and 4-methylthiazole in refluxing benzene afforded the new compounds [Re2(CO)7{μ-2,3-η2-C3H(R)NS}{η1-NC3H2(4-R)S}(μ-H)] (1, R = H; 2, R = CH3), [Re2(CO)6{μ-2,3-η2-C3H(R)NS}{η1-NC3H2(4-R)S}2(μ-H)] (3, R = H; 4, R = CH3) and fac-[Re(CO)3(Cl){η1-NC3H2(4-R)S}2] (5, R = H; 6, R = CH3). Compounds 1 and 2 contain two rhenium atoms, one bridging thiazolide ligand, coordinated through the C(2) and N atoms and a η1-thiazole ligand coordinated through the nitrogen atom to the same Re as the thiazolide nitrogen. Compounds 3 and 4 contain a Re2(CO)6 group with one bridging thiazolide ligand coordinated through the C(2) and N atoms and two N-coordinated η1-thiazole ligands, each coordinated to one Re atom. A hydride ligand, formed by oxidative-addition of C(2)–H bond of the ligand, bridges Re–Re bond opposite the thiazolide ligand in compounds 1–4. Compound 5 contains a single rhenium atom with three carbonyl ligands, two N-coordinated η1-thiazole ligands and a terminal Cl ligand. Treatment of both 1 and 2 with 5 equiv. of thiazole and 4-methylthiazole in the presence of Me3NO in refluxing benzene afforded 3 and 4, respectively. Further activation of the coordinated η1-thiazole ligands in 1–4 is, however, unsuccessful and results only nonspecific decomposition. The single-crystal XRD structures of 1–5 are reported.
Recommended Citation
Kabir, Shariff E.; Ahmed, Faruque; Das, Anamika; Hassan, Mohammad R.; Haworth, Daniel T.; Lindeman, Sergey V.; Hossain, G. M. Golzar; Siddiquee, Tasneem; and Bennett, Dennis W., "Reactivity of [Re2(CO)8(MeCN)2] with Thiazoles: Hydrido Bridged Dirhenium Compounds Bearing Thiazoles in Different Coordination Modes" (2007). Chemistry Faculty Research and Publications. 627.
https://epublications.marquette.edu/chem_fac/627
Comments
Accepted version. Journal of Organometallic Chemistry, Vol. 692, No. 20 (September 15, 2007): 4337-4345. DOI. © 2007 Elsevier B.V. Used with permission.