caa a22 4500 445327677 CHVBK 20180317142726.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s10953-011-9698-y doi (NATIONALLICENCE)springer-10.1007/s10953-011-9698-y Stabilities and Coordination Modes of α -Alaninephosphonic Acid in Copper(II) Heteroligand Complexes with Ethylenediamine, Diethylenetriamine or N , N , N ′, N ′, N ″-Pentamethyldiethylene Triamine in Aqueous Solution [Elektronische Daten] [A. Kamecka, B. Kurzak, J. Jezierska, A. Woźna] Solution equilibrium studies on Cu2+-L1-L2 ternary systems have been performed by pH-potentiometry, UV-Vis spectrophotometry and EPR methods (L1 corresponds to polyamines such as ethylenediamine (en), diethylenetriamine (dien), or N,N,N′,N′,N″-pentamethyldiethylenetriamine (Me5dien) and L2 represents 1-aminoethylphosphonic acid (α-alaninephosphonic acid)). The obtained results suggest the formation of heteroligand complexes with [Cu(L1)(α-Ala(P))] stoichiometry in all studied systems. Additionally, in the system with en the [Cu(en)(α-Ala(P))H−1]− species is formed in basic solution. Our spectroscopic results indicate tetragonal geometry for the [Cu(en)(α-Ala(P))] species, geometry slightly deviated from square pyramidal for the [Cu(dien)(α-Ala(P))] complex and strongly deviated from square pyramidal towards trigonal bipyramidal for the [Cu(Me5dien)(α-Ala(P))] species. The coordination modes in these heteroligand complexes are discussed. The Author(s), 2011 Copper(II) complexes nationallicence Heteroligand complexes nationallicence Aminophosphonic acids nationallicence EPR nationallicence Vis spectroscopy nationallicence Potentiometry nationallicence Equilibria nationallicence Stability constants nationallicence Polyamines nationallicence Five-coordinate complexes nationallicence Kamecka A. Institute of Chemistry, University of Natural Sciences and Humanities, 3-Maja 54, 08-110, Siedlce, Poland aut Kurzak B. Faculty of Chemistry, University of Opole, Oleska 48, 45-052, Opole, Poland aut Jezierska J. Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383, Wrocław, Poland aut Woźna A. Institute of Chemistry, University of Natural Sciences and Humanities, 3-Maja 54, 08-110, Siedlce, Poland aut Journal of Solution Chemistry Springer US; http://www.springer-ny.com 40/6(2011-06-01), 1041-1054 0095-9782 40:6<1041 2011 40 10953 https://doi.org/10.1007/s10953-011-9698-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10953-011-9698-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kamecka A. Institute of Chemistry, University of Natural Sciences and Humanities, 3-Maja 54, 08-110, Siedlce, Poland aut NATIONALLICENCE 700 1- Kurzak B. Faculty of Chemistry, University of Opole, Oleska 48, 45-052, Opole, Poland aut NATIONALLICENCE 700 1- Jezierska J. Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383, Wrocław, Poland aut NATIONALLICENCE 700 1- Woźna A. Institute of Chemistry, University of Natural Sciences and Humanities, 3-Maja 54, 08-110, Siedlce, Poland aut NATIONALLICENCE 773 0- Journal of Solution Chemistry Springer US; http://www.springer-ny.com 40/6(2011-06-01), 1041-1054 0095-9782 40:6<1041 2011 40 10953 Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 445327677 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer