| Autor: |
Bandoli, G., Dolmella, A., Gerber, T. I. A., Mpinda, D., Perils, J., Du Preez, J. G. H. |
| Předmět: |
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| Zdroj: |
Journal of Coordination Chemistry; 7/1/2002, Vol. 55 Issue 7, p823-833, 11p, 2 Diagrams, 4 Charts |
| Abstrakt: |
Monooxo complexes of rhenium(V) with 2-aminophenol and some of its derivatives (H 2 nod), containing the N , O donor-atom set, have been synthesized. Square-pyramidal complexes [ReO(nod) 2 ] - were isolated by reaction with ( n -Bu 4 N) [ReOCl 4 ] in ethanol. In benzene the neutral species [ReOCL(Hnod) 2 ] were obtained. In the presence of hydrochloric acid in ethanol, the anionic complexes ( n -Bu 4 N) [ReOCl 3 (Hnod)] were produced. Trans -[ReOCl 3 (PPh 3 ) 2 ] was also reacted with some of the H 2 nod ligands to yield [ReOCL 2 (Hnod)(PPh 3 ]. The crystal structure of [ReOCl 2 (Hmap)(PPh 3 )] (H 2 map = 2-aminobenzylalcohol) was determined; crystals are monoclinic, P 2 1 / n , with a = 15.065(6), b = 11.253(7), c = 15.850(7) Å, β = 94.27(4)°, U = 2680(2) Å 3 and Z = 4. The structure was solved by the Patterson method and refined by full-matrix least-squares techniques to R = 0.042. The monoanionic Hmap - ligand is coordinated as a bidentate through a neutral amino nitrogen and an anionic alcoholate oxygen atom, with the latter trans to the oxo group. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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