Polymorph screening at surfaces of a benzothienobenzothiophene derivative: discovering new solvate forms
Year: 2023
Type: article
Abstract: X-ray diffraction (XRD). Based on the volumetric considerations together with X-ray fluorescence and Raman spectroscopy data, the phases are identified as solvates containing one, two or three solvent molecules per molecule. The strong interaction of dichloromethane with the oligoethylene glycol side chains of the molecules may be responsible for the formation of the solvates. Temperature-dependent XRD reveals the low thermal stability of the new phases, contrary to the thermodynamically stable bulk form. Nevertheless, the four solvates are stable under ambient conditions for at least two years. This work illustrates that defined crystallization at surfaces enables access to multiple solvates of a given material through precise and controlled variations in the crystallization kinetics.
Source: Materials Horizons
DOI: 10.1039/d3mh00764b
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
Awards: G180802884, G1969175859, CHIral symmetry breaking from Surface to Bulk: a multidisciplinary approach of the crystallization of achiral and chiral molecules (CHISUB)., G434337789, G4822377222, G539462286, Ultra-high Charge Carrier Mobility to Elucidate Transport Mechanisms in Molecular Semiconductors, G6776265572, G7881287636, G8466145815, G8481285185
OpenAlex ID: W4384076281