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Synthesis, structure and stability of a chiral imine-based Schiff-based ligand derived from L-glutamic acid and its [Cu4] complex

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Lonsdale,  Richard
Fachbereich Chemie und Wissenschaftliches Zentrum für Materialwissenschaften, Philipps-Universität Marburg;
Research Department Reetz, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Citation

Muche, S., Levacheva, I., Samsonova, O., Biernasiuk, A., Malm, A., Lonsdale, R., et al. (2017). Synthesis, structure and stability of a chiral imine-based Schiff-based ligand derived from L-glutamic acid and its [Cu4] complex. Journal of Molecular Structure, 1127, 231-236. doi:10.1016/j.molstruc.2016.07.100.


Cite as: https://hdl.handle.net/21.11116/0000-0000-FFD8-E
Abstract
Studies of the stability of a ligand derived from L-glutamic acid and ortho-vanillin and its new [Cu4] complex are presented. The [Cu4] complex contains a heterocubane [CuII4O4] core and pendant carboxylic groups increasing its solubility in water, also under basic conditions. The stability of the complex in different solvents is confirmed with ESI-MS studies and such experiments as successful recrystallization. The complex is stable also under physiological conditions whereas the ligand is partly decomposed to L-glutamic acid and ortho-vanillin.