| Autor: |
Romanenko, E., Kal'chenko, V., Rudyi, R. |
| Zdroj: |
Theoretical & Experimental Chemistry; Nov1985, Vol. 21 Issue 6, p691-694, 4p |
| Abstrakt: |
TheC1 NQR spectra and relaxation parameters of the cyclic amidinium tetrachlorophos-phorates PCl(NCH)CX, where X=CH (1), CCl (2), and CF (3), have been studied at 77 °K. The crystal of (3) has been found to contain two coexisting phases of the compound, which consist, respectively, of zwitterionic molecules of a hexacoordinated phosphorus atom with square-pyramidal symmetry of the PCl group and molecules of chlorotropic isomers with a trigonal-bipyramidal environment for the phosphorus atom. The structural features of the crystalline state and the nature of the phosphorus-ligand bonds have been discussed. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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