Über Pterinchemie. 56. Mitteilung. Die Kristallstruktur von Xanthopterin‐hydrochlorid | Zendy

Bieri Jost H. | Zendy; Hummel WilliPeter | Zendy; Viscontini Max | Zendy

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Über Pterinchemie. 56. Mitteilung. Die Kristallstruktur von Xanthopterin‐hydrochlorid

Author(s) -

Bieri Jost H.,

Hummel WilliPeter,

Viscontini Max

Publication year - 1976

Publication title -

helvetica chimica acta

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.74

H-Index - 82

eISSN - 1522-2675

pISSN - 0018-019X

DOI - 10.1002/hlca.19760590710

Subject(s) - chemistry , monoclinic crystal system , crystal structure , pyrazine , crystallography , molecule , protonation , crystal (programming language) , stereochemistry , organic chemistry , ion , computer science , programming language

The crystal structure of xanthopterine‐hydrochloride. The crystal structure of the title compound, a pterine, has been determined by X‐ray analysis (direct methods) and refined with 1332 structure amplitudes to R = 0.027. The crystal system is monoclinic, space group P 2 1/ c , with unit cell dimensions a = 7.942, b = 8.417, c = 12.076 Å, β = 93.77°. The molecule is protonated at the N(1)‐position. The angle between the planes of the pyrimidine and pyrazine rings is 2.02°.

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