Halogen bonded lamellar motifs in crystals of Schiff base ZnII–LnIII–ZnII coordination compounds – Synthesis, structure, Hirshfeld surface analysis and physicochemical properties

Polyhedron ◽  
2019 ◽  
Vol 166 ◽  
pp. 83-90 ◽  
Author(s):  
Barbara Miroslaw ◽  
Beata Cristóvão ◽  
Zbigniew Hnatejko
Keyword(s):  
Schiff Base ◽  
Physicochemical Properties ◽  
Surface Analysis ◽  
Coordination Compounds ◽  
Hirshfeld Surface ◽  
Hirshfeld Surface Analysis

scholarly journals Whole-molecule disorder of the Schiff base compound 4-chloro-N-(4-nitrobenzylidene)aniline: crystal structure and Hirshfeld surface analysis

2020 ◽  
Vol 76 (3) ◽  
pp. 417-422
Author(s):  
Sundararaman Leela ◽  
Ashokkumar Subashini ◽  
Philip Reji ◽  
Kandasami Ramamurthi ◽  
Helen Stoeckli-Evans
Keyword(s):  
Schiff Base ◽  
Surface Analysis ◽  
Crystal Packing ◽  
Minor Component ◽  
Hirshfeld Surface ◽  
Hirshfeld Surface Analysis ◽  
Compound C ◽  
Schiff Base Compound ◽  
Whole Molecule Disorder ◽  
Base Compound

In the crystal of the title Schiff base compound, C13H9ClN2O2, [CNBA; systematic name: (E)-N-(4-chlorophenyl)-1-(4-nitrophenyl)methanimine], the CNBA molecule shows whole-molecule disorder (occupancy ratio 0.65:0.35), with the disorder components related by a twofold rotation about the shorter axis of the molecule. The aromatic rings are inclined to each other by 39.3 (5)° in the major component and by 35.7 (9)° in the minor component. In the crystal, C—H...O hydrogen bonds predominate in linking the major components, while weak C—H...Cl interactions predominate in linking the minor components. The result is the formation of corrugated layers lying parallel to the ac plane. The crystal packing was analysed using Hirshfeld surface analysis and compared with related structures.

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