نتایج جستجو برای: n phenyl ring effect
تعداد نتایج: 2583197 فیلتر نتایج به سال:
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...
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.
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.
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 ...
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 ...
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.
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>.
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.
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.
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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