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Phthalazin-1(2H)-one

✍ Scribed by Büyükgüngör, Orhan ;Odabaşoğlu, Mustafa ;Narayana, B. ;Vijesh, A. M. ;Yathirajan, H. S.

Publisher: International Union of Crystallography
Year: 2007
Tongue: English
Weight: 659 KB
Volume: 63
Category: Article
ISSN: 1600-5368
DOI: 10.1107/s1600536807027523

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✦ Synopsis

The molecule of the title compound, C 8 H 6 N 2 O, is almost planar, with a dihedral angle of 0.52 (7) between the two rings. In the crystal structure, intermolecular N-HÁ Á ÁO, C-HÁ Á ÁN and C-HÁ Á ÁO hydrogen bonds andinteractions link the molecules into a three-dimensional network. Theinteraction occurs between the pyridazinone and benzene rings of the molecules at (x; y; z) and (x À 1; y; z); the centroid-centroid distance is 3.588 (1) A ˚and the plane-plane separation is 3.434 A ˚.

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