Synthesis and characterisation of pentacarbonyl(thiazolyl)manganese(0) complexes and their conversion to cationic 2,3-dihydro-thiazol-2-ylidene(pentacarbonyl)manganese(0) compounds
Date
2001
Authors
Raubenheimer H.G.
Neveling A.
Cronje S.
Billing D.G.
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Abstract
Treatment of BrMn(CO)5 with the corresponding thiazolyllithium precursor produced [(CO)5Mn{C=NCH= CH3}] (1) or [(CO)5Mn{C=N(CH3)=CHS}] (2). Protonation or alkylation of 1 or 2 yields [(CO)5Mn{CN(H)CH=CHS}][CF3SO3] (3), [(CO)5- Mn{CN(H)C(CH3)=CHS}][CF3SO3] (4), [(CO)5Mn{CN(CH3)CH=CHS}][CF3SO3] (5) or [(CO)5Mn{CN(CH3)C(CH3)=CHS}] [CF3SO3] (6). The relatively long Mn-C(carbene) bond in the molecular structures of 3 [2.010(12) Å] and 4 [2.044(3) Å] and structural features of the 2,3-dihydro-thiazol-2-ylidene ligand, attest to stabilisation of the carbene ligand by π-bonding from the N atom and little π-acceptance by the ligand from the metal. © 2001 Elsevier Science Ltd. All rights reserved.
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Keywords
2,3 dihydrothiazol 2 ylidene(pentacarbonyl)manganese derivative, carbene, lithium derivative, manganese derivative, nitrogen, pentacarbonyl(thiazolyl)manganese complex, thiazolyllithium, unclassified drug, alkylation, article, chemical bond, chemical structure, crystal structure, molecular stability, proton transport, structure analysis, synthesis
Citation
Polyhedron
20
10-Sep
20
10-Sep