Ontology highlight
ABSTRACT:
SUBMITTER: Asiri AM
PROVIDER: S-EPMC3344100 | biostudies-literature | 2012 Apr
REPOSITORIES: biostudies-literature
Acta crystallographica. Section E, Structure reports online 20120324 Pt 4
The title compound, C(23)H(17)N(3)O, has been previously described in a monoclinic P2(1)/c polymorph with Z = 4 [Asiri, Al-Youbi, Faidallah, Ng & Tiekink (2011). Acta Cryst. E67, o2449]. In the new monoclinic P2(1)/n form, with Z = 8, there are two independent mol-ecules, A and B, in the asymmetric unit. In both mol-ecules, the cyclo-hexa-1,3-diene ring has a screw-boat conformation, whereas it is a distorted half-chair in the original polymorph. There is a fold in each mol-ecule, as indicated b ...[more]