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Details van artikel 82 van 116 gevonden artikelen
| Titel: |
SOLVENT DEPENDENCY OF SUBSTITUTION REACTIONS OF OXORHENIUM(V) COMPLEXES. THE CRYSTAL STRUCTURES OF TRANS-DICHLORO (N-PHENYSALICYLIDENEIMINATO)-TRIPHENYLPHOSPHINEOXORHENIUM(V) AND CHLORO(8-OXYQUINOLINE) [(2-OXYMETHYLINE-6-HYDROXYMETHYL)-PYRIDINE]OXORHENIUM(V) |
| Auteur: |
Bandoli, G. Gatto, S. Gerber, T. I. A. Perils, J. Preez, J. G.H. Du |
| Verschenen in: |
Journal of coordination chemistry |
| Paginering: | Jaargang 39 (1996) nr. 3-4 pagina's 299-311 |
| Jaar: |
1996-11-01 |
| Inhoud: |
The reaction of the complex [ReOCℓ2(HL)(PPh3)] (1; H2L = 2,6-bis(hydroxymethyl)pyridine), in which HL- acts as a bidentate monoanionic N,O--donor ligand, with the potentially bidentate N,O--donor ligands N-phenylsalicylideneimine (PhsalH) and 8-hydroxyquinoline (oxineH) in ethanol led to the substitution of the chelate HL- to produce trans-[ReOCℓ2(Phsal)(PPh3)] (2) and trans-[ReOCℓ2(oxine)(PPh3)] (4). In benzene the mixed bis(bidentate) ligand complexes [ReOCℓ(Phsal)(HL)] (3) and [ReOCℓ(oxine)(HL)] (5) were isolated. Complex 1 also reacts with a molar excess of PhsalH and oxineH(NOH) in ethanol to form ReOCℓ(NO)2. All the complexes were characterized by various physical techniques, including IR and NMR. X-ray structures of 2 (C31H25Cℓ2NO2PRe) and 5 (C16H14CℓN2O4Re) were determined. Crystals of 2 are triclinic, P1, a = 8.813(4), b = 10.200(4), c = 16.913(7) Å, α = 84.90(3), β = 80.81(3), γ = 67.44(3)°. Z = 2; those of 5 are monoclinic, P21/c, a = 14.091(2), b = 8.171(2), c = 15.227(2) Å, β = 115.48(2)°, Z = 4. The structures were solved by the Patterson method and were refined by full-matrix least-squares procedures to R = 0.0369 (Rw = 0.0469) and 0.0619 (0.0770) for 3187 and 2858 reflections with F > 4.0s` (F) for 2 and 5, respectively. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 82 van 116 gevonden artikelen
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