1,4-Phenylenebis(methylene) dicarbamate
نویسنده
چکیده
The title compound, C(10)H(12)N(2)O(4), is a phenyl dicarbamate with crystallographically imposed inversion symmetry. The dihedral angle between the carbamo-yloxy plane [i.e. the plane of the N-C(O)-O fragment; r.m.s. deviation = 0.002 (3) Å] and the plane of the aryl ring is 29.2 (1)°. In the crystal, two different centrosymmetric N-H⋯O hydrogen-bond inter-actions are observed; these are described as R(2) (2)(8) and R(2) (4)(8) in graph-set notation. The rings form an alternating sequence, linking the mol-ecules into a sheet structure parallel to (011).
منابع مشابه
1,1′-{[1,4-Phenylenebis(methylene)]bis(oxy)bis(4,1-phenylene)}diethanone
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.
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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⋯π inter-action is also observed.
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The title compound, [Zn(CH(3)CO(2))Cl(C(14)H(14)N(4))](n), is a one-dimensional coordination polymer in which the Zn(II) ion is tetrahedrally -coordinated by two N atoms of a bridging 1,1'-[1,4-phenyl-enebis(methyl-ene)]di-1H-imidazole ligand, an acetate O atom and a Cl atom. The Cl atom, two acetate O atoms and two acetate C atoms are located on a mirror plane. The coordination of the diimidaz...
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In the title compound, C(24)H(22)O(4), the centroid of the central benzene ring lies on a special position of 2/m site symmetry, while the terminal aromatic rings are located on a mirror plane. The central and terminal benzene rings are perpendic-ular to each other. In the crystal, the mol-ecules are connected via C-H⋯O hydrogen bonds into a three-dimensional polymeric structure. The network is...
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The asymmetric unit of the title compound, C(24)H(22)O(4), contains one half-mol-ecule, the other half being generated by a crystallographic center of inversion. The central benzene ring makes a dihedral angle of 72.49 (5)° with the terminal benzene ring. In the crystal, adjacent mol-ecules are linked through C-H⋯O inter-actions, forming a sheet structure parallel to the bc plane. The sheets ar...
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