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Phthalazin-1(2H)-one-picric acid (1/1).

ABSTRACT: The geometric parameters of the title compound, C(8)H(6)N(2)O·C(6)H(3)N(3)O(7), are in the usual ranges. The three nitro groups are almost coplanar with the aromatic picrate ring [dihedral angles 10.2 (2)°, 7.62 (16) and 8.08 (17)°]. The mol-ecular conformation of the picric acid is stabilized by an intra-molecular O-H⋯O hydrogen bond. The phthalazin-1(2H)-one mol-ecules are connected via N-H⋯O hydrogen bonds, forming centrosymmetric dimers.

SUBMITTER: Yathirajan HS

PROVIDER: S-EPMC2915189 | biostudies-literature | 2007 Dec

REPOSITORIES: biostudies-literature

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Phthalazin-1(2H)-one-picric acid (1/1).

Yathirajan H S HS Narayana B B Swamy M T MT Sarojini B K BK Bolte Michael M

Acta crystallographica. Section E, Structure reports online 20071206 Pt 1

The geometric parameters of the title compound, C(8)H(6)N(2)O·C(6)H(3)N(3)O(7), are in the usual ranges. The three nitro groups are almost coplanar with the aromatic picrate ring [dihedral angles 10.2 (2)°, 7.62 (16) and 8.08 (17)°]. The mol-ecular conformation of the picric acid is stabilized by an intra-molecular O-H⋯O hydrogen bond. The phthalazin-1(2H)-one mol-ecules are connected via N-H⋯O hydrogen bonds, forming centrosymmetric dimers. ...[more]

PMID: 21200682

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