نتایج جستجو برای: n phenyl ring effect

تعداد نتایج: 2583197  

2008
Lijun Zhang Daxin Shi Jiarong Li Ling Zhang Yanqiu Fan

The title compound, C(17)H(18)N(4), contains a pyrazolopyridine system fused with a seven-membered carbocyclic ring. The pyrazole ring is coplanar with the pyridine ring, while the phenyl ring is twisted by a dihedral angle of 14.38 (14)° with respect to the pyridine ring. The seven-membered ring displays a chair conformation. The packing is stabilized by N-H⋯N hydrogen bonds and N-H⋯π(arene) i...

2007
Aamer Saeed Sabah Zaman Michael Bolte

Geometric parameters of the title compound, C(24)H(20)N(2)O(2)S, are in the usual ranges. The central heterocycle makes dihedral angles of 41.29 (4) and 72.94 (5)° with the phenyl ring and the methoxy-phenyl ring, respectively.

2009
Xiang-Yang Qin Ping-An Wang Xiao-Li Sun

In the title compound, C(18)H(20)N(3)O(2), the pyridine and phenyl rings are coplanar [dihedral angle = 3.5 (3)°]. The phenyl ring makes a dihedral angle of 29.6 (1)° with the imidazole ring. The crystal structure is stabilized by inter-molecular C-H⋯O hydrogen bonds.

2009
Ping Zou Shuang Zhang Ying Liu Jun Qiao Jin-Sheng Gao

The cation of the salt, C(18)H(18)N(2)O(2) (2+)·2NO(3) (-), lies about a twofold rotation axis. The pyridinium ring is almost coplanar with the phenyl-ene ring [dihedral angle between rings = 5.69 (9)°]. The crystal structure shows π-π stacking inter-actions [centroid-centroid distance = 3.70 (1) Å] between the pyridinium rings and the phenyl-ene rings, generating a linear chain structure. The ...

2011
R. J. Butcher M. Akkurt S. Samshuddin B. Narayana H. S. Yathirajan

In the title compound, C(25)H(16)F(2)N(2)O, the pyrazole ring is almost planar (r.m.s. deviation = 0.028 Å) and makes a dihedral angle of 5.86 (11)° with the indazole benzene ring. The dihedral angle between the pyrazole ring and the unsubstituted phenyl ring is 28.19 (11)°. The dihedral angles between the unsubstituted phenyl and the two fluoro-phenyl groups are 57.69 (10) and 18.01 (10)°. In ...

2010
Tai-Ran Kang

In the title compound, C(16)H(12)N(2)O(2), both terminal benzene rings are located at the same side of the central epoxide ring, showing a cis conformation. The epoxide ring makes dihedral angles of 76.59 (10) and 62.40 (11)° with the phenyl and cyano-phenyl rings, respectively. Inter-molecular N-H⋯O and weak C-H⋯O hydrogen bonding is present in the crystal structure.

2009
Hui Chen Jing Luo Lin-Lin Jing Ru Jiang

The title nitro-phenyl pyridine compound, C(20)H(22)N(2)O(6) was synthesized as a degradation product of the hypertension medication nisoldipine. The dihedral angle between the nitro-substituted phenyl ring and the pyridine ring is 75.5 (4)°. There are a number of C-H⋯O inter-actions between symmetry-related mol-ecules>.

2013
Yahia Nasser Mabkhot Fatima Alatibi Assem Barakat M. Iqbal Choudhary Sammer Yousuf

In the title compound, C16H17NO3S, a thio-phene derivative with amino phenyl, acetyl, methyl and ethyl carboxyl susbtituents attached to a central thio-phene ring, the phenyl and thio-phene rings form a dihedral angle of 36.92 (9) Å. The mol-ecular conformation is stabilized by an intra-molecular N-H⋯O hydrogen bond, which forms an S(6) ring motif.

2009
Jun-qiang Chen He-ping Li Chang-shan Huang Jin-ying Wu

In the title compound, C(16)H(15)N(3)O(2), the planar [maximum deviation 0.156 (2) Å] pyrazoline ring is nearly coplanar with the 3-nitro-phenyl group and is approximately perpendicular to the phenyl ring, making dihedral angles of 3.80 (8) and 80.58 (10)°, respectively. Weak inter-molecular C-H⋯O hydrogen bonding is present in the crystal structure.

2012
P. Sugumar S. Sankari P. Manisankar M. N. Ponnuswamy

In the title compound, C(19)H(19)N(3)O(3)Se, the selenadiazole ring is essentially planar (r.m.s. deviation = 0.001 Å). The heterocyclic ring makes dihedral angles of 50.2 (2) and 76.3 (9)°, respectively, with the meth-oxy-phenyl and phenyl rings.

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