Structural Conversion of Three Copper(ii) Complexes with Snapshot Observations Based on the Different Crystal Colours and Morphology

Overview

Journal RSC Adv

Publisher Royal Society of Chemistry

Specialty Chemistry

Date 2022 May 6

PMID 35514932

Authors

Hao Su

Zhongkui Li

Junrui Tan

Hongwei Ma

Li Yan

Hui Li

Affiliations

Soon will be listed here.

Abstract

Three novel Cu(ii) complexes [Cu(L)(MeOH)] (1), [Cu(L)(HO)] (2) and [CuL(HO)] (3) (L = ()-2-((2-hydroxy-4-methoxybenzylidene)amino)acetic acid) have been obtained in different time scales of reaction processing. Complexes 1 and 2 are kinetically controlled products and 3 is a thermodynamically stable product. Single crystal X-ray diffraction analyses revealed that 1 and 2 are binuclear complexes except for different coordination solvents. 3 is a mononuclear complex. Complex 1 is mainly obtained in methanol solution, while 2 and 3 are stable in aqueous solvents. Based on the understanding of crystal structures of the three complexes, reversibly transforming crystal 2 to crystal 1 at room temperature has been realised, which has been confirmed by the change of colours and morphology measured by SEM. The research work is very important for controllable synthesis of coordination complexes.

Citing Articles

Synthesis and Characterization of Lanthanide Metal Ion Complexes of New Polydentate Hydrazone Schiff Base Ligand.

Pospieszna-Markiewicz I, Fik-Jaskolka M, Hnatejko Z, Patroniak V, Kubicki M Molecules. 2022; 27(23).

PMID: 36500479 PMC: 9736465. DOI: 10.3390/molecules27238390.

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