Electronics structures of amidine and its complex with platinum(IV). Orotonation of coordinated amidine
Autor: | N. S. Panina, Yu. N. Kukushkin |
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Rok vydání: | 1996 |
Předmět: | |
Zdroj: | Journal of Structural Chemistry. 37:192-195 |
ISSN: | 1573-8779 0022-4766 |
DOI: | 10.1007/bf02591045 |
Popis: | The electronic structures of amidine CH3C(NH)NH2 and its complex [Pt(NH3)5{CH3C(NH)NH2}]4+ are studied by the semiempirical CNDO method and by the ab initio Hartree-Fock-Roothaan method using the effective core potential for the platinum atom by the GAUSSIAN-92 program. It is shown that in free amidine the protonation of the NH group is energetically more profitable than the protonation of the NH2 group. Formation of the amidine-platinum(IV) ion complex is accompanied by a considerable redistribution of electron density in amidine atoms and bonds. In the above complex, the amidine NH2 group exhibits enhanced protophilic properties. |
Databáze: | OpenAIRE |
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