نتایج جستجو برای: phenyl ring effect

تعداد نتایج: 1770371  

2011
Ghulam Mustafa Sania Tasneem Islam Ullah Khan Muhammad Ashfaq Muhammad Nadeem Arshad

In the title compound, C(26)H(26)ClNO(4), the central phenyl-ene ring is oriented at dihedral angles of 5.06 (14) and 64.14 (5)°, respectively, with respect to aromatic rings of the benzyl and chloro-phenyl groups. The centroid-centroid distance between the central phenyl-ene ring and the aromatic ring of the benzyl group is 4.028 (12) Å. In the crystal, inter-molecular N-H⋯O hydrogen bond gene...

2013
Henok H. Kinfe Felix L. Makolo Zanele H. Phasha

In the title compound, C30H33BrO6, the pyran-ose ring adopts a chair conformation. Two of the O-benzyl phenyl rings lie almost perpendicular to C/C/C/O plane formed by the ring atoms not attached to these O-benzyl phenyl rings, and form dihedral angles of 85.1 (2) and 64.6 (2)°, while the third O-benzyl phenyl ring is twisted so that it makes a dihedral angle 34.9 (2)° to this C/C/C/O plane. Th...

2008
Anton V. Dolzhenko Geok Kheng Tan Lip Lin Koh Anna V. Dolzhenko Wai Keung Chui

In the title compound, C(8)H(8)N(4)·C(8)H(8)N(4), two tautomers, viz. 3-phenyl-1,2,4-triazol-5-amine and 5-phenyl-1,2,4-triazol-3-amine, are crystallized together in equal amounts. The 3-phenyl-1,2,4-triazol-5-amine mol-ecule is essentially planar; the phenyl ring makes a dihedral angle of 2.3 (2)° with the mean plane of the 1,2,4-triazole ring. In the 5-phenyl-1,2,4-triazol-3-amine tautomer, t...

2010
Xiao-Ling Yuan Wan-Yun Liu Ping Huo Guang-Quan Mei

In the title compound, C(19)H(16)NO(4)P, the dihedral angle between the mean planes of the phenyl rings bonded to the P atom is 75.4 (1)°. In the crystal, mol-ecules are linked into chains running along the a axis by inter-molecular O-H⋯O hydrogen bonds. Mol-ecules are further connected into a three-dimensional array by weak C-H⋯O hydrogen bonds.

2013
Jae Kyun Lee Kee Dal Nam Joo Hwan Cha Yong Seo Cho Joon Kyun Lee

The title compound, C25H19N, adopts an E conformation about the C=N bond. The naphthalene ring system and the phenyl rings form dihedral angles 38.1 (1), 46.9 (8) and 48.5 (1)°, respectively, with the mean plane of the central enimino fragment. The crystal packing exhibits no directional close contacts.

2009
Tuncer Hökelek Ergin Yalçın Zeynel Seferoğlu Ertan Şahin

In the title compound, C(18)H(10)N(4), the pyrazine ring is oriented at dihedral angles of 48.08 (7) and 44.80 (7)° with respect to the phenyl rings, while the dihedral angle between the phenyl rings is 49.47 (7)°. In the crystal structure, weak π-π contacts between pyrazine and phenyl rings [centroid-centroid distance = 3.813 (1) Å] may stabilize the structure.

2012
M. Aslam I. Anis N. Afza M. Safder S. Yousuf

In the title compound, C(20)H(13)BrClNO, the azomethine double bond [C=N = 1.246 (4) Å] adopts an E conformation. The bromo- and chlorophenyl rings are inclined to one another by 13.70 (11)°, and form dihedral angles of 76.68 (10) and 74.24 (7)°, respectively, with the phenyl ring. In the crystal, mol-ecules are linked by C-H⋯O hydrogen bonds to form double stranded chains propagating along the...

2010
S. Thenmozhi A. SubbiahPandi V. Dhayalan A. K. MohanaKrishnan

In the title compound, C(24)H(15)NO(2)S(2), the ring system composed of the five fused rings is almost planar (r.m.s. deviation for all non-H atoms = 0.056 Å). The dihedral angle between the fused ring system and the phenyl ring is 83.4 (9)°. The crystal packing is stabilized by C-H⋯π and π-π inter-actions between parallel ring systems [centroid-centroid distances = 3.526 (3), 3.877 (3) and 3.7...

2008
Franz Dornhaus Hans-Wolfram Lerner Michael Bolte

The title compound, [Fe(2)(C(5)H(5))(2)(C(24)H(22)BP(2))(CO)(4)][FeCl(4)]·CHCl(3), is an oxidation product of CpFe(CO)(2)PPh(2)BH(3). One pair of phenyl rings attached to the two different P atoms are almost parallel, as are the other pair [dihedral angles = 8.7 (5) and 8.9 (5)°]. The planes of the two cyclo-penta-dienyl rings are inclined by 26.8 (7)° with respect to each other. The carbonyl g...

2007
A. Malathy R. Suresh Kumar S. Perumal J. Suresh Nilantha Lakshman

In the title compound, C(33)H(32)N(2)O(2), the polysubstituted piperidine ring adopts a chair conformation. The isoxazolidine ring is in an envelope conformation. In the crystal structure, intra- and inter-molecular C-H⋯π inter-actions involving the phenyl rings are observed.

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