A new triclinic polymorph of 6,6'-{(1<i>E</i>,1<i>E</i>')-[(1,2-di-phenyl-ethane-1,2-di-yl)bis-(aza-neylyl-idene)]bis-(methane-ylyl-idene)}bis-(2-chloro-phenol).

ABSTRACT: The redetermined structure of a new polymorph of 6,6'-{(1E,1E')-[(1,2-di-phenyl-ethane-1,2-di-yl)bis-(aza-neylyl-idene)]bis-(methane-ylyl-idene)}bis-(2-chloro-phenol), C₂₈H₂₂Cl₂N₂O₂ was reported. The title compound was synthesized under microwave irradiation at 90 K, within 10 min. The asymmetric unit comprises a potentially tetra-dentate Schiff base ligand that crystallizes in the triclinic system with space group P1. The structure displays intra-molecular O-H⋯N hydrogen bonding, forming an S(6) ring. Comparisons are made with the monoclinic polymorph [Shen et al. (2017). RSC Adv. 7, 40640-40649].

SUBMITTER: Iwatani M 

PROVIDER: S-EPMC12589836 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature