Boese, Roland; Gehrke, Annette; Kapon, Moshe; Herbstein, Frank H.:
Determining the crystal structure of twinned 2-methylpyrazine.
2000
In: Acta Crystallographica, Section B: Structural Science, Jg. B56 (2000), Heft 4, S. 677 - 681
Artikel/Aufsatz in Zeitschrift / Fach: Chemie
Titel:
Determining the crystal structure of twinned 2-methylpyrazine.
Autor(in):
Boese, Roland im Online-Personal- und -Vorlesungsverzeichnis LSF anzeigen; Gehrke, Annette; Kapon, Moshe; Herbstein, Frank H.
Erscheinungsjahr:
2000
Erschienen in:
Acta Crystallographica, Section B: Structural Science, Jg. B56 (2000), Heft 4, S. 677 - 681
ISSN:

Abstract:

Although systematic absences and symmetry relations among reflections pointed to space group I4122 (one mol. in the asym. unit), a direct methods soln. could only be obtained in I.hivin.4 (two mols. in the asym. unit). Refinement in I.hivin.4 was unsatisfactory until merohedral twinning was taken into account. The resulting mol. dimensions are in excellent agreement with analogous values in the literature. The mol. arrangement is described.