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Institutional Repository [SANDBOX]
Technical University of Crete
Technical University of Crete
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| URI | http://purl.tuc.gr/dl/dias/E5E4EECF-346F-4A6A-8772-8EDB7345DE17 | - |
| Identifier | https://doi.org/10.1039/DT9940002559 | - |
| Language | en | - |
| Extent | 5 pages | en |
| Title | Syntheses of 4-Benzyl-3,5-dimethylpyrazolylborato Complexes of Molybdenum and Tungsten Nitrosyls: Molecular Structure of [ Mo( CO),( NO)(HB(3,5-Me2-4-PhCH,C,N,),)I, a Complex with an 'Inverted' Bowl-like Structure | en |
| Creator | Elefteria Psillakis | en |
| Creator | John C Jeffery | en |
| Creator | Jon A McCleverty | en |
| Creator | Stefan S Kurek | en |
| Creator | Michael D Ward | en |
| Creator | Rob M Richardson | en |
| Creator | Andrzej Wlodarczyk | en |
| Publisher | Royal Society of Chemistry | en |
| Content Summary | Reaction of [HB(bdmpz),] , obtained by reaction of 4-benzyl-3,5-dimethylpyrazole (Hbdmpz) with KBH,, with [M(CO),] (M = Mo or W) and p-MeC,H,SO,N(NO)Me afforded [M(CO),(NO)- {HB(bdmpz),}] (M = Mo or W). The molybdenum carbonyl was converted into [Mo(NO)- {HB(bdmpz),}X(Y)] (X = Y = CI, I or OC,H,Me-p; X = CI, Y = OMe or OC,H,Me-p) the spectral and electrochemical properties of which are virtually identical to those of [Mo( NO){HB(dmpz),}X(Y)] (Hdmpz = 3.5-dimethylpyrazole), indicating that the addition of a benzyl group has no significant electronic effect in the new species. However, a crystal and molecular structure determination of [Mo(CO),( NO){HB( bdmpz),}] revealed that the molecule has a highly symmetrical structure, the CH, groups of the benzyl groups in the tris(pyrazoly1)borate ligand being disposed in a star-shaped configuration where the phenyl rings adopt an 'inverted' bowl-like structure with the BH group inside and the Mo(CO),(NO) group outside the bowl. The arrangement of the 4-benzyl groups with respect to the pyrazolyl rings and the H-B Mo three-fold axis is strongly reminiscent of an inverted threelegged 'Isle of Man' symbol. | en |
| Type of Item | Peer-Reviewed Journal Publication | en |
| Type of Item | Δημοσίευση σε Περιοδικό με Κριτές | el |
| License | http://creativecommons.org/licenses/by/4.0/ | en |
| Date of Item | 2015-09-25 | - |
| Date of Publication | 1994 | - |
| Bibliographic Citation | J. C Jeffery, S. S Kurek, J. A McCleverty, . E.Psillakis, R. M Richardson, M. D Ward, A.Wlodarczyk , "Syntheses of 4-Benzyl-3,5-dimethylpyrazolylborato Complexes of Molybdenum and Tungsten Nitrosyls: Molecular Structure of [ Mo( CO),( NO)(HB(3,5-Me2-4-PhCH,C,N,),)I, a Complex with an 'Inverted' Bowl-like Structure",J. of the Chem. So. Dalt. Transact. vol. 17 ,pp.2559-2564,1994.doi:10.1039/DT9940002559 | en |
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