| Autor: |
Yatsimirskii, K. B., Sheka, Z. A., Sinyavskaya, E. I. |
| Zdroj: |
Theoretical and Experimental Chemistry; September 1970, Vol. 3 Issue: 5 p357-360, 4p |
| Abstrakt: |
To evaluate the complex-forming properties of the oxygen in the phosphoryl group in phosphine oxide derivatives as a function of the hydrocarbon substituent, it is proposed to study the absorption spectra in the visible region of colored complexes of phosphine oxide derivatives with metal salts possessing unfilled d- or f-shells. When cobalt (II) chloride was used for this purpose, it was found that the hyperchromic effect-the increase in band intensity, which corresponds to 4A2 ? 4T1 (P) transition-may be used for a comparative characteristic of the covalent bond of the bond between metal and phosphoryl oxygen. The cobalt ion serves in this case as a probe in the study of reactivity and character of the nonbonding orbitals of the phosphoryl oxygen. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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