ABSTRACT: In the crystal of the title compound, C(16)H(17)N(2) (+)·NO(3) (-)·H(2)O, the tetra-methyl-1,10-phenanthrolinium cations, nitrate anions and lattice water mol-ecules are all located on a mirror plane with the methyl H atoms of the cation equally disordered over two sites about the mirror plane. The cation, anion and water mol-ecule are linked by O-H?O and N-H?O hydrogen bonds into a sheet parallel to the bc plane. ?-? stacking between phenanthroline ring systems is observed in the crystal structure, the centroid-centroid distance being 3.4745?(6)?Å.
Project description:Both the cation and anion of the title compound, (C(26)H(21)N(2))[AuCl(4)], are disposed about a plane of mirror symmetry. The 2,9-dimethyl-4,7-diphenyl-1,10-phenanthrolinium ring is oriented at a dihedral angle of 44.2?(1)° with respect to the planar phenyl ring systems. The Au(III) atom has a square-planar environment defined by four Cl atoms. The crystal structure is stabilized by C-H?? and Au?? ring-metal (3.551?Å) inter-actions. In the crystal structure, the mol-ecules stack along the c axis via N-H?N hydrogen-bond inter-actions.
Project description:In the crystal structure of the title compound, (C12H9N2)2[ZnCl4]·H2O, the two independent 1,10-phenanthrolinium cations are bridged by the water mol-ecule and the tetrahedral tetrachloridozincate anion via N-H?O, O-H?Cl and N-H?Cl hydrogen bonds, forming chains along . The chains are linked via C-H?Cl hydrogen bonds and a number of ?-? inter-actions [centroid-centroid distances vary from 3.5594?(14) to 3.7057?(13)?Å], forming a three-dimensional network. In each 1,10-phenanthrolinium cation, there is a short N-H?N inter-action.
Project description:In the preparation of the title hydrated salt, C14H13N2 (+)·C10H5O8 (-)·H2O, a proton has been transfered to the 2,9-dimethyl-1,10-phenanthrolinium cation, forming a 2,4,5-tri-carb-oxy-benzoate anion. In the anion, the mean planes of the protonated carboxyl-ate groups form dihedral angles of 11.0?(5), 4.4?(5) and 80.3?(4)° with the benzene ring to which they are attached. The mean plane of the deprotonated carboxyl-ate group forms a dihedral angle of 10.6?(5)° with the benzene ring. In the crystal, the anions are involved in carb-oxy-lic acid O-H?Ocarbox-yl hydrogen bonds, generating a two-dimensional network parallel to (001) containing R 4 (4)(28) and R 4 (4)(32) motifs. The 2,9-dimethyl-1,10-phenanthrolinium cations and water mol-ecules reside between the anion layers and are connected to the anions via N-H?Owater and Owater-H?Ocarbox-yl hydrogen bonds. An intra-molecular O-H?O hydrogen bond is also observed in the anion.
Project description:In the structure of the 1:1 proton-transfer compound of 1,10-phenanthroline with 4,5-dichloro-phthalic acid, C(12)H(9)N(2) (+)·C(8)H(3)Cl(2)O(4) (-), determined at 130?K, the 1,10-phenanthrolinium cation and the hydrogen 4,5-dichloro-phthalate anion associate through a single N-H?O(carbox-yl) hydrogen bond giving discrete units which have no extension except through a number of weak cation C-H?O(anion) associations and weak cation-anion aromatic ring ?-? inter-actions [minimum centroid-centroid separation = 3.6815?(12)?Å]. The anions are essentially planar "[maximum deviation 0.214?(1)?Å (a carboxyl O)] with the syn-related H atom of the carboxyl group, forming a short intra-molecular O-H?O(carbox-yl) hydrogen bond.
Project description:The title hydrated molecular salt, 2C(12)H(9)N(2) (+)·C(14)H(6)O(8)S(2) (2-)·6H(2)O, consists of 1,10-phenanthrolinium (phen-H(+)) cations, anthraquinone-1,5-disulfonate (AQDS(2-)) anions, which occupy a centre of inversion, and water molecules of crystal-lization. In the crystal, a supra-molecular network structure is formed via N-H?O and O-H?O hydrogen bonds and weak C-H?O and ?-? stacking inter-actions [centroid-centroid distances = 3.651?(6) and 3.545?(8)?Å].
Project description:In the title compound, (C??H??N?)[FeCl?]·CH?OH, the 2,9-dimethyl-1,10-phenanthrolin-1-ium cation, FeCl? ? anion and methanol solvent mol-ecule lie on a twofold rotation axis. Due to symmetry, the H atom on the N atom of the cation is half-occupied. In the anion, the Fe(III) atom has a tetra-hedral geometry. H atoms of the methanol mol-ecule are disordered over two sets of sites around the twofold axis. In the crystal, ?-? contacts between the pyridine rings and between the pyridine and benzene rings [centroid-centroid distances = 3.6535?(16) and 3.5522?(17)?Å] and inter-molecular O-H?N and N-H?O hydrogen bonds stabilize the structure.
Project description:In the title mol-ecule, C(24)H(16)N(4)O·H(2)O, the benzene ring of the 1,10-phenanthroline group and that of the 2-phenyl-pyridine group are respectively twisted by 67.9?(1) and 15.3?(3)° from the carbamoyl group defined by the plane of the O=C-N group of atoms. The water mol-ecule is hydrogen bonded to one of the phenanthroline N atoms. In the crystal structure, significant ?-? stacking inter-actions occur, with centroid-to-centroid separations in the range 3.567-3.681?(2)?Å.
Project description:The complete mol-ecule of the title compound, C(12)H(12)N(2)O(2), lies on two crystallographic symmetry elements: a twofold axis and a mirror plane. In the mol-ecular structure, the quinoxaline ring and two methyl-ene substituents lie on the mirror plane while the other two methyl-ene groups are disordered about the plane. The crystal packing is stabilized by weak inter-molecular ?-? stacking inter-actions with centroid-centroid distances of 3.6803?(7)?Å.
Project description:The title compound, C(12)H(9)N(2) (+)·C(7)H(4)ClO(3) (-)·C(12)H(8)N(2)·C(7)H(5)ClO(3), contains one phenanthrolinium (Hphen) cation, one phenanthroline (phen) mol-ecule, one 4-chloro-2-hydroxy-benzoate anion (hcba) and one 4-chloro-2-hydroxy-benzoic acid (Hhcba) mol-ecule in the asymmetric unit. The phen mol-ecule is approximately parallel to Hphen, making a dihedral angle of 1.98?(6)°. The centroid-centroid distance between pyridine rings of adjacent phen and Hphen species is 3.7718?(15)?Å, and that between the benzene and pyridine rings of adjacent phen and Hphen species is 3.7922?(16)?Å, indicative of ?-? stacking inter-actions. The crystal structure contains an extensive network of classical (O-H?O, N-H?N and O-H?Cl) and weak (C-H?O and C-H?N) hydrogen bonds. Finally, C-H?? inter-actions are seen between Hphen and hcba and between phen and Hhcba in the crystal structure. The hydroxy group of the anion is disordered over the two sites ortho to the carboxylate group in a 0.75:0.25 ratio.
Project description:In the title compound, [CoCl(2)(C(14)H(12)N(2))], the Co(II) atom is four-coordinated in a distorted tetra-hedral geometry by two N atoms from a 2,9-dimethyl-1,10-phenanthroline ligand and two Cl atoms. The Co atom and the phenanthroline unit are located on a mirror plane. The methyl H atoms are disordered about the mirror plane and areeach half-occupied. In the crystal structure, ?-? inter-actions between the pyridine and benzene rings and between the pyridine rings [centroid-centroid distances = 3.8821?(9) and 3.9502?(10)?Å, respectively] stabilize the structure.