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1,1'-{[1,4-Phenyl-enebis(methyl-ene)]bis-(-oxy)bis-(4,1-phenyl-ene)}diethanone.

ABSTRACT: The centroid of the central aromatic ring of the title mol-ecule, C(24)H(22)O(4), is located on an inversion center. The dihedral angle between the central and terminal benzene rings is 75.00?(7)°. In the crystal, mol-ecules are linked through C-H?O hydrogen bonds into chains along [121]. The chains are connected into layers via C-H?? inter-actions.

SUBMITTER: Al-Mohammed NN

PROVIDER: S-EPMC3238835 | biostudies-other | 2011 Dec

REPOSITORIES: biostudies-other

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1,1'-{[1,4-Phenyl-enebis(methyl-ene)]bis-(-oxy)bis-(4,1-phenyl-ene)}diethanone.

Al-Mohammed Nassir N NN Alias Yatimah Y Abdullah Zanariah Z Khaledi Hamid H

Acta crystallographica. Section E, Structure reports online 20111105 Pt 12

The centroid of the central aromatic ring of the title mol-ecule, C(24)H(22)O(4), is located on an inversion center. The dihedral angle between the central and terminal benzene rings is 75.00 (7)°. In the crystal, mol-ecules are linked through C-H⋯O hydrogen bonds into chains along [121]. The chains are connected into layers via C-H⋯π inter-actions. ...[more]

PMID: 22199688

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1,1'-{2,2'-[1,4-Phenyl-enebis(methyl-ene)]bis-(-oxy)bis-(2,1-phenyl-ene)}diethanone.

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1,1'-{[1,4-Phenyl-enebis(methyl-ene)]bis-(-oxy)bis-(3,1-phenyl-ene)}diethanone.

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3,3'-Bis(quinolin-8-yl)-1,1'-[4,4'-methyl-enebis(4,1-phenyl-ene)]diurea.

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Crystal structures and Hirshfeld surface analyses of 4,4'-{[1,3-phenyl-enebis(methyl-ene)]bis-(-oxy)}bis-(3-meth-oxy-benzaldehyde) and 4,4'-{[(1,4-phenyl-ene-bis(methyl-ene)]bis-(-oxy)}bis-(3-meth-oxy-benzalde-hyde).

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1,4-Phenyl-enebis(methyl-ene) dicarbamate.

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[1,4-Phenyl-enebis(methyl-ene)]bis-(tri-phenyl-phospho-nium) bis-(tetra-fluoro-borate).

Project description:The crystal structure of the title salt, C(44)H(38)P(2) (2+)2BF(4) (-), consists of discrete dications inter-laced with the BF(4) (-) counter-ions. In each cation, both phospho-nium groups lie on the same side of the plane of the central benzene ring. The tetra-fluoro-borate anions are involved in intensive thermal motion, thus some B-F bond lengths [range 1.329?(6) to 1.391?(6)?Å] deviate significantly from their standard values.

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N,N'-[1,4-Phenyl-enebis(methyl-ene)]bis-(N,N-diethyl-ethanaminium) dibromide.

Project description:In the crystal structure of the title compound, C(20)H(38)N(2) (2+)·2Br(-), the centroid of the aromatic ring is located on an inversion center, so that the asymmetric unit consists of one-half mol-ecule of the dication and one bromide anion. C-H?Br inter-actions connect the two components into a three-dimensional network. An intra-molecular C-H?? inter-action is also observed.

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