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Journal of the Indian Chemical Society

Crystal structure of iron(III) complex with pyridine-2,6-dicarboxylic acid

Complexes of Co-III with pyrazine-2,6- and pyridine-2,6-dicarboxylic acids have been synthesized. The ligands act as tridentate coordinating through the heterocyclic ring nitrogen and two carboxyl oxygens in both the complexes. Single crystal X-ray analyses of both the complexes reveal the structures as distorted octahedral, Co sitting at the center and surrounded by one tridentate ligand and three ammonia. The counter anion is nitrate.

JOURNAL OF THE INDIAN CHEMICAL SOCIETY

Synthesis and crystal structure of cobalt(III) complexes with pyrazine-2,6-and pyridine-2,6-dicarboxylic acids

Complexes of Cr-III, Co-III, Al-III and Bi-III with pyrazine-2-carboxylic acid along with some of their picolinates have been synthesized. The ligands are bidentate coordinating through a heterocyclic ring nitrogen and a carboxyl oxygen. A single crystal X-ray analysis on Cr(Pz-2-COO)(3) reveals the structure as highly distorted octahedral, Cr sitting at the center and surrounded by the bidentate ligand.

Study on some metal(III) complexes with pyrazine-2-carboxylic and pyridine-2-carboxylic acids

The ability to rationally design and predictably construct crystalline solids has been the hallmark of crystal engineering research. To date, numerous examples of multicomponent crystals comprising organic molecules have been reported. However, the crystal engineering of cocrystals comprising both organic and inorganic chemical units is still poorly understood and mostly unexplored. Here, we report a new diverse set of higher-order cocrystals (HOCs) based on the structurally versatile—yet largely unexplored—phosph(V/V)azane heterosynthon building block. The novel ternary and quaternary cocrystals reported are held together by synergistic and orthogonal intermolecular interactions. Notably, the HOCs can be readily obtained either via sequential or one-pot mechanochemical methods. Computational modelling methods reveal that the HOCs are thermodynamically driven to form and that their mechanical properties strongly depend on the composition and intermolecular forces in the crystal, offering untapped potential for optimizing material properties.

Angewandte Chemie - International Edition

Mechanosynthesis of Higher-Order Cocrystals: Tuning Order, Functionality and Size in Cocrystal Design

Journal of Molecular Structure

A protonated imine-based water-soluble cadmium complex with N, O donor chelating agent: Synthesis, structure, fluorescence efficiency and catecholase activity