| | 1 | Author
| V. P. Tarasov, V. I. Privalov, G. A. Kirakosyan, YuA. Buslaev | Requires cookie* | | | Title
| Scalar Second-Kind Relaxation of 27 A1, 69 Ga and 71 Ga Nuclei in Aluminium and Gallium Complexes  | | | | Abstract
| Spin-spin and spin-lattice relaxation times of nuclei 69 > 71 Ga, 27 A1, 14 N in anions [MClnBr4_n]-and the solvate complexes [M(CH3CN)6] 3+ , produced from dissolution of MCI3 and MBr3 in the mixture CH3CN + CH3N02 (M = Ga, Al), are measured in the temperature range from —40 up to + 70 °C. It is shown that nuclear spins of 69 > 71 Ga, 27 A1 relax in the anionic and cationic complexes by means of the second-kind scalar and quadrupole relaxation mechanisms (due to the relaxation of the nuclei 35 ' 37 C1, 79 ' 81 Br, 14 N). The complexes [MClwBr4_n]-and [M(CH3CN)6] 3+ in the investigated solutions are inert and do not undergo exchange processes in the NMR time scale. The scalar spin coupling constants in [M(CH3CN)6] 3+ are determined from the scalar contribution to the relaxation rate of 69 -71 Ga, 27 A1, and the measured relaxation time of 14 N in the solvate complex; the results are Ga-14 N) -59 ± 5 Hz, J(71 Ga-14 N) = 74 ± 6 Hz, J(27 Al-i 4 N) = 22 ± 2 Hz. | | | |
Reference
| Z. Naturforsch. 38b, 1173—1181 (1983); received May 3 1983 | | | |
Published
| 1983 | | | |
Keywords
| Aluminium, Gallium, Relaxation, NMR | | | |
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| default:Reihe_B/38/ZNB-1983-38b-1173.pdf | | | | Identifier
| ZNB-1983-38b-1173 | | | | Volume
| 38 | |
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