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Języki publikacji
Abstrakty
The complexes between l-aspartic acid and metals of lanthanide series (La3+, Pr3+, Eu3+, Gd3+) have been prepared and characterized using a variety of techniques including, infrared spectroscopy, 1H NMR, 13C NMR, elemental analysis and metal contents. The sought metal effect on the electronic environment of the chiral carbon and its neighbouring atoms was observed in case of Europium and Praseodymium. The 13C downfield shift indicates a lower electron density at the carbon with consequent downfield shift observed on the ?-H attached to it increasing its acidity.
Słowa kluczowe
Rocznik
Tom
Strony
91--115
Opis fizyczny
Bibliogr. 14 poz., rys., tab.
Twórcy
autor
- Department of Chemistry, College of Applied and Industrial Sciences, University of Bahri, Khartoum State, Khartoum, Sudan, musa.elballa@gmail.com
Bibliografia
- [1] Legendzewicz J., Huskowska E., Argay G. Y., Waskowska, A., J. Less-Common Met. 146 (1989) 33.
- [2] Benelli C., Caneschi A., Gatteschi D., Paradi N. A. L., Magnetic Molecular Materials 198 (1991) 233.
- [3] Ma B. Q., Zhang D. S., Gao S., Jin T. Z., Yan C. H., Xu G. X., Angew. Chem. Int. Ed. 39 (2000) 3644.
- [4] Ma A., Li L., Lin Y., Xi S., Jiegou Huaxue 14 (1995) 5.
- [5] Li X., Pan K., Jiegou Huaxue 4 (1985) 75.
- [6] Csoregh I., Kierkegaard P., Legendziewicz J., Huskowska E., Acta Chem. Scand. Sect. A 41 (1987) 453.
- [7] Torres J., Kremer C., Kremer E., Pardo H., Suescun L., Mombrú A., Domínguez S., Mederos, A., Herbst-Irmer, R., Arrieta, J. M., J. Chem. Soc., Dalton Trans. (2002) 4035.
- [8] Zheng H. D., Pan K. Z., Jiegou Huaxue 11 (1992) 393.
- [9] Wang J., Hu N., Yang K., Zhang H., Niu C., Acta Cryst. Sect. C 59 (2003) 52.
- [10] Csöregh I., Kierkegaard P., Legendziewicz J., Huskowska E., Acta Chem. Scand. 43 (1989) 636.
- [11] Wang R., Liu H., Carducci M. D., Jin T., Zheng C., Zheng Z., Inorg.Chem. 40 (2001) 2743-2750.
- [12] Celia R. C., Ana M. G. M., Segio R. D. E. L., J. Braz. Chem. Soc. 8(6), (1997) 597-602.
- [13] Wang R, Selby H. D., Liu H., Michael D. C., Jin T., Zheng Z., Anthis J. W., Staples R. J., Inorg. Chem. 41 (2002) 278-286.
- [14] Becker E.D., High resolution NMR-Theory and Chemical Applications, Academic Press, New York, 1980.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPS2-0069-0030