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(E)-4-Hy-droxy-2-[(2-hy-droxy-phen-yl)iminiometh-yl]phenolate.

ABSTRACT: The title compound, C(13)H(11)NO(3), crystallizes in a zwitterionic form and has a trans configuration about the C=N bond. The mol-ecule is almost planar, the dihedral angle between the two benzene rings being 4.32?(8)°. The two hy-droxy substit-uents are coplanar with each of their attached benzene rings [r.m.s. deviations of 0.0053?(2) and 0.0052?(2)?Å]. An intra-molecular N-H?O hydrogen bond formed between the iminium N and the phenolate O atom generates an S(6) ring motif. In the crystal, the mol-ecules are linked through O-H?O hydrogen bonds into chains along [110]. Two neighbouring chains are further connected through O-H?O hydrogen bonds in an anti-parallel manner. ?-? inter-actions are also observed, with centroid-centroid distances of 3.7115?(19) and 3.743?(2)?Å.

SUBMITTER: Eltayeb NE

PROVIDER: S-EPMC3006709 | biostudies-literature | 2010 Jun

REPOSITORIES: biostudies-literature

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(E)-4-Hy-droxy-2-[(2-hy-droxy-phen-yl)iminiometh-yl]phenolate.

Eltayeb Naser Eltaher NE Teoh Siang Guan SG Fun Hoong-Kun HK Chantrapromma Suchada S

Acta crystallographica. Section E, Structure reports online 20100605 Pt 7

The title compound, C(13)H(11)NO(3), crystallizes in a zwitterionic form and has a trans configuration about the C=N bond. The mol-ecule is almost planar, the dihedral angle between the two benzene rings being 4.32 (8)°. The two hy-droxy substit-uents are coplanar with each of their attached benzene rings [r.m.s. deviations of 0.0053 (2) and 0.0052 (2) Å]. An intra-molecular N-H⋯O hydrogen bond formed between the iminium N and the phenolate O atom generates an S(6) ring motif. In the crystal, th ...[more]

PMID: 21587785

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