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6-[4-(Diphenyl-amino)-phen-yl]quinoline 1-oxide.

ABSTRACT: In the title mol-ecule, C(27)H(20)N(2)O, a triphenyl-amine derivative of quinoline, the three benzene rings linked through an N atom form a propeller shape, with dihedral angles between the mean planes of pairs of rings of 75.57 (9), 55.68 (9) and 83.66 (9)°. The quinoline ring is essentially planar, with an r.m.s. deviation of the fitted atoms of 0.0155 Å, and forms a dihedral angle of 33.52 (8)° with the benzene ring to which it is bonded. Weak C-H⋯π inter-actions are also observed in the crystal structure.

SUBMITTER: Wang LZ

PROVIDER: S-EPMC3414988 | biostudies-literature |

REPOSITORIES: biostudies-literature

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4-[2-(Benzyl-amino)-phen-yl]-2,6-dimethyl-quinoline N-oxide.

Project description:The title compound, C(24)H(22)N(2)O, was obtained in a two-step procedure from the corresponding 4-(2-iodo-phen-yl)quinoline. The quinoline system is approximately planar [maximum deviation from the least-squares plane = 0.021?(2)?Å]. The planes of the quinoline system and the phenyl ring subtend a dihedral angle of 78.08?(8)°. In the crystal, pairs of mol-ecules are connected via a center of symmetry and linked by a pair of angular N-H?O hydrogen bond. These dimers form columns oriented along the c axis.

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Project description:In the title compound, C(20)H(20)NPSe, the P atom lies in a distorted tetra-hedral environment. The Tolman cone angle is 157° indicating steric crowding at this atom. In the crystal, weak C-H?Se inter-actions create linked dimeric units and C-H?? inter-actions are also observed.

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(2-Amino-phen-yl)methyl-diphenyl-phospho-nium iodide.

Project description:The asymmetric unit of the title compound, C(19)H(19)NP(+)·I(-), contains two tetra-alkyl-phospho-nium cations and two I(-) anions. The P atoms are four-coordinated in distorted tetra-hedral configurations by three phenyl and one methyl C atoms. There are weak intra- and inter-molecular N-H?I contacts.

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Project description:The title compound, C(18)H(16)NOP·C(3)H(8)O, was synthesized by the reduction of (3-nitro-phen-yl)diphenyl-phosphine oxide in the presence of 2-propanol as recrystallization solvent. There are two molecules in the asymmetric unit. Each P atom is tetra-coordinated by three C and one O atom from two phenyl fragments, one aniline group and one double-bonded O atom in a distorted tetra-hedral geometry. C-H?? and N-H?? inter-actions are present. In the crystal structure, a wide range of non-covalent inter-actions consisting of hydrogen bonding [of the types of O-H?O, N-H?O and C-H?O, with D?A distances ranging from 2.680?(3) to 3.478?(3)?Å] and ?-? [centroid-centroid distance of 3.7720?(15)?Å] stacking inter-actions connect the various components into a supra-molecular structure.

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8-(Diphenyl-phosphan-yl)quinoline.

Project description:The title compound, C(21)H(16)NP, is a known P-N chelator and various crystal structures of its metal complexes have been reported. However, no crystallographic evidence of the free ligand has been given to date. The phenyl rings are almost orthogonal to one another [dihedral angle = 88.9?(1)°], and they are twisted from the mean plane of the quinoline by 80.5?(1) and 76.3?(1)°.

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Project description:In the title compound, C(36)H(28)P(2)S(2), the dihedral angle between the central benzene rings is 66.95?(13)°. In the crystal, molecules are linked via C(ar)-H?? and ?-? inter-actions [shortest centroid-centroid distance between benzene rings = 3.897?(2)?Å].

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Project description:The asymmetric unit of the title compound, C(16)H(20)N(4)O, contains six independent approximately planar mol-ecules and is best described as a commensurate modulation of a P2(1)/c parent. Two sets of disordered mol-ecules share almost the same locations (related by an in-plane translation), ensuring that the c-glide plane condition is not attained. C-H⋯O inter-actions provide structural cohesion. The site occupancy factors of the disordered molecules are ca 0.72/0.28 and 0.67/0.33.

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(R(p))-1-{(R)-(Dimethyl-amino)[2-(diphenyl-phosphan-yl)phen-yl]methyl}-2-(diphenyl-phosphan-yl)ferrocene chloro-form solvate.

Project description:The absolute configuration of the title mol-ecule, [Fe(C(5)H(5))(C(38)H(34)NP(2))]·CHCl(3), is R,R(p). The mol-ecular structure is similar to the structure of the solvent-free compound [Fukuzawa, Yamamoto & Kikuchi (2007 ▶). J. Org. Chem. 72, 1514-1517], but some torsion angles about the P-C(phen-yl) bonds differ by up to 25°. The P atoms and the N atom have a distorted trigonal-pyramidal geometry. The chloro-form solvate group donates a C-H⋯π bond to the central benzene ring and is also involved in six inter-molecular C-H⋯Cl contacts with H⋯Cl distances between 2.96 and 3.13 Å.

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Tris(3-amino-phen-yl)phosphine oxide ethanol solvate.

Project description:The title compound crystallized as an ethanol solvate, C(18)H(18)N(3)OP·C(2)H(6)O. It is the reduction product of tris-(3-nitro-phen-yl)phosphine oxide. In the crystal, there are inter-molecular N-H⋯O hydrogen bonds between neighbouring tris-(3-amino-phen-yl)phosphine oxide mol-ecules and O-H⋯O hydrogen bonds involving the ethanol solvent mol-ecule.

| S-EPMC2969104 | biostudies-literature

2,2-Diphenyl-benzo[c]quinoline-1-ox-yl.

Project description:In the title compound, C(25)H(18)NO, a stable phenanthridinic nitroxide, the ring containing the nitroxide function assumes a twist-boat conformation and the dihedral angle formed by adjacent benzene rings is 21.78 (5)°. The phenyl substituents at position 2 are approximately orthogonal to each other, forming a dihedral angle of 81.04 (4)°. The crystal structure is stabilized by an intra-molecular C-H⋯O hydrogen bond and by C-H⋯π inter-actions.

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