Synthesis and complexing properties ofcis,cis-1,3,5-tri-[2-(diphenylphosphinyI)ethylamino]cyclohexane |
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Authors: | M I Kabachnik S V Matveev V D Bazilyanskaya L P Loginova Yu M Polikarpov |
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Institution: | (1) A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, 117813 Moscow, Russian Federation |
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Abstract: | A novel polydentate phosphorus-containing complexing agent,cis,cis-1,3,5-tri2-(diphenyl-phosphinyl)ethylamino]cyclohexane, has been prepared on the basis ofcis,cis-1,3,5-triamino-cyclohexane. The method of potentiometric titration in an aqueous—organic medium (70% ethanol, ionic strength 0.01M LiNO3, 298 K) has been used to study the acid-base and complexing properties of the title compound. The ligand thus prepared forms 1 1 complexes with Cu2+, Co2+, Zn2+, and Ni2+ cations; formation of hydroxocomplexes MOHL+ has been observed in the case of Zn2+ and Cd2+.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 7, pp. 1276–1279, July, 1993.The authors are grateful to A. G. Matveeva for his assistante in discussing the results of this study and in preparing this paper. |
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Keywords: | complex formation polydentate organophosphorus ligands synthesis acid-base properties potentiometric titration |
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