Crystallographic Combinations: Understanding Polymorphism and Approximate Symmetry in <i>N</i>-(1,3-Thiazol-2-yl)benzamide

A new polymorph of <i>N</i>-(1,3-thiazol-2-yl)benzamide crystallises in the monoclinic space group <i>Pc</i> with four crystallographically independent molecules (Z′ = 4) in the asymmetric unit. Where the previously reported polymorphs exhibit two distinct hydrogen-bonded dim...

Full description

Saved in:
Bibliographic Details
Main Authors: Johannes C. Voigt, Michael J. Hall, Paul G. Waddell
Format: Article
Language:English
Published: MDPI AG 2025-07-01
Series:Crystals
Subjects:
Online Access:https://www.mdpi.com/2073-4352/15/7/657
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A new polymorph of <i>N</i>-(1,3-thiazol-2-yl)benzamide crystallises in the monoclinic space group <i>Pc</i> with four crystallographically independent molecules (Z′ = 4) in the asymmetric unit. Where the previously reported polymorphs exhibit two distinct hydrogen-bonded dimer geometries exclusively, the asymmetric unit of the new polymorph comprises both. Approximate symmetry was observed to relate the molecules of these dimers. These approximate symmetry elements combine to form a structure with distorted <i>P</i>2<sub>1</sub>/<i>c</i> space group symmetry, rationalising the unexpectedly high number of crystallographically independent molecules.
ISSN:2073-4352