Crystal structure of 4'-bromo-2,5-dihy-droxy-2',5'-dimeth-oxy-[1,1'-biphen-yl]-3,4-dicarbo-nitrile.

ABSTRACT: In the crystal of the title substituted hemibi-quinone derivative, C16H11BrN2O4 or [BrHBQH2(CN)2], the substituted benzene rings are rotated about the central C-C bond, forming a dihedral angle of 53.59?(7)°. The ring systems inter-act through an intra-molecular O-H?Ometh-oxy hydrogen bond, which induces a geometry quite different from those in previously reported hemibi-quinone structures. In the crystal, the mol-ecules associate through an inter-molecular O-H?Nnitrile hydrogen bond, forming chains which extend along [100] and are inter-linked through very weak C-H?N hydrogen bonds, giving a overall two-dimensional structure lying parallel to (010).

SUBMITTER: Meany JE 

PROVIDER: S-EPMC4908508 | biostudies-literature | 2016 May

REPOSITORIES: biostudies-literature