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5H-Imidazo[4,5-f][1,10]phenanthroline.

ABSTRACT: The title mol-ecule, C(13)H(8)N(4), is is essentially planar [r.m.s. deviation for all non-H atoms = 0.025?(3)?Å]. In the crystal, mol-ecules are connected through one weak bifurcated N-H?(N,N) hydrogen bond and three ?-? stacking inter-actions between pyridine and imidazole rings [centroid-centroid distance = 3.631?(8)?Å] and between pyridine and benzene rings [centroid-centroid distances = 3.675?(5) and 3.666?(2)?Å].

SUBMITTER: Tong SW

PROVIDER: S-EPMC3344565 | biostudies-literature | 2012 May

REPOSITORIES: biostudies-literature

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2-[4-(Dimethyl-amino)phen-yl]imidazo[4,5-f][1,10]phenanthroline sesquihydrate.

Project description:There are two formula units in the asymmetric unit of the title compound, C(21)H(17)N(5)·1.5H(2)O. The imidazo[4,5-f][1,10]phen-an-throline unit is almost coplanar with the benzene ring, the dihedral angles between them being 8.91?(5) and 4.93?(6)° in the two mol-ecules. The crystal structure is stabilized by a series of hydrogen bonds between the water mol-ecules and the N atoms of the imidazophenanthroline groups.

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Project description:The Co(II) ion in the title complex, [Co(SO(4))(C(13)H(8)N(4))(H(2)O)(2)](n), has a slightly distorted octa-hedral coordination environment formed by two O atoms from two symmetry-related bridging sulfate ligands, two N atoms from a bis-chelating 1H-imidazo[4,5-f][1,10]phenanthroline (IPL) ligand and two O atoms from coordinated water mol-ecules. The bridging sulfate ligands connect Co(II) ions to form a one-dimensional chain along the b-axis direction. In the crystal structure, inter-molecular O-H⋯O, O-H⋯N and N-H⋯O hydrogen bonds link the chains into a three-dimensional network.

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Project description:In the centrosymmetric dinuclear title compound, [Co(2)(SO(4))(2)(C(13)H(8)N(4))(2)(H(2)O)(4)]·2H(2)O, the Co(II) atom is coord-in-ated by two N atoms from two 1H-imidazo[4,5-f][1,10]phenanthroline ligands, two O atoms from two sulfate anions and two O atoms from water mol-ecules in a distorted octa-hedral geometry. The Co?Co separation is 5.1167?(7)?Å. The coordinated and uncoordinated water mol-ecules engage in N-H?O and O-H?O hydrogen-bonding inter-actions.

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