Structural conversion of three copper(ii) complexes with snapshot observations based on the different crystal colours and morphology.

ABSTRACT: Three novel Cu(ii) complexes [Cu₂(L)₂(MeOH)₂] (1), [Cu₂(L)₂(H₂O)₂] (2) and [CuL(H₂O)] (3) (L = (E)-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

SUBMITTER: Su H 

PROVIDER: S-EPMC9058286 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature