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Pyrazino[2,3-b]indolizine-10-carbonitrile.

ABSTRACT: In the crystal structure of the title compound, C(11)H(6)N(4), neighbouring mol-ecules are linked into inversion dimers through pairs of weak C-H?N hydrogen bonds, forming an R(2) (2)(10) ring motif. The dimers forming this motif are further linked by ?-? inter-actions. With respective average deviations from planarity of 0.004?(2) and 0.004?(1)?Å, the pyrazino[2,3-?]indolizine and cyano fragment are oriented at 0.8?(1)° to each other. The mean planes of the pyrazino[2,3-b]indolizine skeleton either lie parallel or are inclined at an angle of 28.7?(2)° in the crystal.

SUBMITTER: Stefanska A

PROVIDER: S-EPMC2969041 | biostudies-literature | 2009 Mar

REPOSITORIES: biostudies-literature

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Pyrazino[2,3-b]indolizine-10-carbonitrile.

Stefańska Anita A Zarzeczańska Dorota D Ossowski Tadeusz T Sikorski Artur A

Acta crystallographica. Section E, Structure reports online 20090314 Pt 4

In the crystal structure of the title compound, C(11)H(6)N(4), neighbouring mol-ecules are linked into inversion dimers through pairs of weak C-H⋯N hydrogen bonds, forming an R(2) (2)(10) ring motif. The dimers forming this motif are further linked by π-π inter-actions. With respective average deviations from planarity of 0.004 (2) and 0.004 (1) Å, the pyrazino[2,3-β]indolizine and cyano fragment are oriented at 0.8 (1)° to each other. The mean planes of the pyrazino[2,3-b]indolizine skeleton ei ...[more]

PMID: 21582499

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