Polymorphism in the 2‐(4‐morpholinothio) benzothiazole | Zendy

Guzman J. | Zendy; LargoCabrerizo J. | Zendy

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Polymorphism in the 2‐(4‐morpholinothio) benzothiazole

Author(s) -

Guzman J.,

LargoCabrerizo J.

Publication year - 1978

Publication title -

journal of heterocyclic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.321

H-Index - 59

eISSN - 1943-5193

pISSN - 0022-152X

DOI - 10.1002/jhet.5570150865

Subject(s) - benzothiazole , chemistry , conformational isomerism , polymorphism (computer science) , crystal structure , flexibility (engineering) , crystallography , stereochemistry , thermodynamics , molecule , organic chemistry , genotype , biochemistry , statistics , physics , mathematics , gene

The existence of two conformational isomers (A and B) with different crystal structures in 2‐(4‐morpholinothio) benzothiazole is shown. The melting temperatures of the two conformers are 345° and 357° K, respectively. The difference between the values of the melting enthalpies and entropies gives an indication of the two isomers flexibility whose proportion depends on the thermal history of the sample.

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