New insights into the coordination chemistry of Schiff bases derived from amino acids: Planar [Ni4] complexes with tyrosine side-chains
Abstract
Structure and properties of a rare metal complex of the chiral Schiff base ligand derived from ortho-vanillin and L-tyrosine are presented. This study is a continuation of research on ligands containing biologically compatible moieties. The ligand is also fully characterized in form of a sodium salt, in particular in solution, for the first time. The metal complex contains a unique bowl-shaped [Ni4] core. Its structure is investigated both in solution (ESI-MS, NMR) and in solid state (X-ray diffraction studies). Under certain conditions the complex can be isolated as crystalline DMF solvate which is studied in solid state.
- Publication:
-
Journal of Molecular Structure
- Pub Date:
- August 2017
- DOI:
- 10.1016/j.molstruc.2017.04.036
- Bibcode:
- 2017JMoSt1142..168M
- Keywords:
-
- Nickel(II);
- Schiff-base;
- Amino acid;
- Crystal structure;
- Stability