Heterocyclic tautomerism. V . 2‐Guanidinobenzimidazole | Zendy

Steel Peter J. | Zendy

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Heterocyclic tautomerism. V . 2‐Guanidinobenzimidazole

Author(s) -

Steel Peter J.

Publication year - 1991

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.5570280729

Subject(s) - tautomer , chemistry , benzimidazole , intramolecular force , hydrogen bond , intermolecular force , molecule , crystal structure , crystallography , solid state , stereochemistry , organic chemistry

A single‐crystal X‐ray structure analysis of 2‐guanidinobenzimidazole shows the molecule exists in the solid state as tautomer 1 , with an intramolecular hydrogen bond between the benzimidazole‐N3 and a guanidino‐NH 2 . The guanidino group is inclined at an angle of 13.8° to the benzimidazole plane. Other nitrogen atoms and their attached hydrogens are involved in additional intermolecular hydrogen bonds that connect the molecules in a complex three‐dimensional network.

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