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4,4'-(Anthracene-9,10-di-yl)dibenzoic acid dimethyl-formamide disolvate.

ABSTRACT: In the title compound, C(28)H(18)O(4)·2C(3)H(7)NO, the dihedral angle between the benzene rings and the anthracene system is 74.05?(12)°. A crystallographic inversion centre is located in the middle of the anthracene unit. The dimethyl-formamide solvent mol-ecules are partially disordered over two positions of approximately equal occupancy [0.529?(6):0.471?(6)]. Inter-molecular O-H?O hydrogen bonds with the major occupancy formamide O atom as acceptor result in the formation of 2:1 solvate-complex aggregates, which are alternately linked to shorter solvate units via weak inter-molecular C-H?O contacts generated from the rotational disorder of the formamide O atom (minor occupancy component). Weak C-H?? inter-actions between the solvent mol-ecules as the donor and the outer anthracene rings support these contacts in the crystal structure for both disorder components.

SUBMITTER: Li H 

PROVIDER: S-EPMC2969536 | biostudies-literature | 2009 May

REPOSITORIES: biostudies-literature

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4,4'-(Anthracene-9,10-di-yl)dibenzoic acid dimethyl-formamide disolvate.

Li Hong H   Wang Zhi-Qiang ZQ   Yang Liu-Zhi LZ   Liu Yan-Qi YQ   Mao Duo-Bin DB  

Acta crystallographica. Section E, Structure reports online 20090507 Pt 6

In the title compound, C(28)H(18)O(4)·2C(3)H(7)NO, the dihedral angle between the benzene rings and the anthracene system is 74.05 (12)°. A crystallographic inversion centre is located in the middle of the anthracene unit. The dimethyl-formamide solvent mol-ecules are partially disordered over two positions of approximately equal occupancy [0.529 (6):0.471 (6)]. Inter-molecular O-H⋯O hydrogen bonds with the major occupancy formamide O atom as acceptor result in the formation of 2:1 solvate-compl  ...[more]

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