نتایج جستجو برای: ccufe2o4sio2c3 pyrazole c4so3 h2pw

تعداد نتایج: 3198  

2013
N. Vinutha S. Madan Kumar B. S. Vidyashree Jois Kalluraya Balakrishna N. K. Lokanath D. Revannasiddaiah

In the title compound, C22H19N3O4, the dihedral angle between the furan and pyrazole rings is 82.73 (19)° while the dihedral angles between the furan and pyrazole rings and their attached benzene rings are 31.93 (18) and 1.88 (18)°, respectively. In the crystal, inversion dimers linked by pairs of C-H⋯O hydrogen bonds generate R 2 (2)(16) loops. In addition, weak C-H⋯π and aromatic π-π stacking...

2009
Aamer Saeed Shahid Hussain Michael Bolte

In the mol-ecule of the title compound, C(14)H(16)ClN(3)O, the benzene and pyrazole rings are oriented at a dihedral angle of 3.50 (3)°. In the crystal structure, inter-molecular N-H⋯O hydrogen bonds link the mol-ecules into chains. A π-π contact between the benzene and pyrazole rings [centroid-centroid distance = 3.820 (3) Å] may further stabilize the structure.

2008
P. Ramesh A. Subbiahpandi Ramaiyan Manikannan S. Muthusubramanian M. N. Ponnuswamy

In the title compound, C(29)H(34)N(2)S(2), the pyrazole ring is planar and both cyclo-hexane rings adopt chair conformations. The dihedral angles between the pyrazole ring and the two benzene rings are 59.9 (2) and 19.8 (2)°. The conformation and packing of the mol-ecules in the unit cell are stabilized by a weak intra-molecular C-H⋯S and C-H⋯N interactions, in addition to van der Waals forces.

2011
Hatem A. Abdel-Aziz Ahmed Bari Seik Weng Ng

In the title mol-ecule, C(14)H(15)N(3)O(4)S, the pyrazole ring is aligned at a dihedral angle of 55.5 (1)° with respect to the benzene ring; the mean planes of the acetyl substituents are twisted by 13.4 (3) and 30.1 (3)° with respect to the pyrazole ring. Inter-molecular classical N-H⋯O and weak C-H⋯O hydrogen bonding links the mol-ecules, forming a three-dimensional network architecture in th...

2009
Ming-Qiu Zhou Kai Zhu Xiao-Ping Lv Ping-Fang Han Ping Wei

In the title compound, C(17)H(21)ClN(4)O, the benzene ring is oriented at dihedral angles of 1.59 (3) and 1.27 (3)° with respect to the pyrimidine and pyrazole rings, while the dihedral angle between the pyrimidine and pyrazole rings is 0.83 (3)°. An intra-molecular N-H⋯O hydrogen bond results in the formation of a planar (r.m.s. deviation 0.004 Å) six-membered ring.

2012
Lara C. Spencer Ilia A. Guzei Tebogo V. Segapelo James Darkwa

The title compound, C(38)H(30)N(4), a potentially mono- and bidentate ligand, does not seem to form palladium complexes similar to other poly(pyrazol-1-ylmeth-yl)benzenes due to the large steric size of the phenyl substituents on the pyrazole rings. The pyrazole rings have a 21.09 (5)° angle between their mean planes and exhibit a trans-like geometry in which the in-plane lone pairs of electron...

Journal: :Acta crystallographica. Section C, Crystal structure communications 2007
Rodrigo Abonía Emerson Rengifo Justo Cobo John N Low Christopher Glidewell

The molecules of 3-tert-butyl-5-[(4-methoxybenzyl)amino]-1-phenyl-1H-pyrazole, C21H25N3O, are linked into simple C9 chains by a single C-H...N hydrogen bond. 5-[(Benzotriazol-1-ylmethyl)(4-methoxybenzyl)amino]-3-tert-butyl-1-phenyl-1H-pyrazole, C28H30N6O, crystallizes with Z' = 2 in the space group P2(1)/c. The molecules are weakly linked into centrosymmetric tetramolecular aggregates by a comb...

2010
Mohamadou Lamine Doumbia Rachid Bouhfid El Mokhtar Essassi Lahcen El Ammari

In the title compound, C(15)H(14)N(4), the phenyl and pyrazole rings are essentially coplanar, being twisted relative to each other by a dihedral of only 3.68 (11)°. The benzene ring makes a dihedral angle of 64.47 (11)° with the pyrazole ring. The crystal structure is stabilized by two inter-molecular N-H⋯N hydrogen-bonds, which build a two-dimensional network developing parallel to (100). An ...

2011
Yong-Xiang Li Shan Du Jian-Long Wang

The asymmetric unit of the title compound, 4C(3)H(2)N(2)O(4)·C(6)H(6), contains two independent dinitro-pyrazole mol-ecules and half a benzene solvent mol-ecule, which lies on a crystallographic inversion centre. Each pyrazole ring is essentially planar (mean deviations of 0.009 and 0.002 Å), with the two nitro groups rotated out of the plane [dihedral angles = 11.7 (2)/31.1 (1) and 21.8 (2)/25...

2014
Ju-Xian Wang Chao Feng

In the title mol-ecule, C13H14N2O2, the dihedral angle between the pyrazole and benzene ring mean planes is 76.06 (11)°, and the conformation of the ethyl side chain is anti [C-O-C-C = -175.4 (3)°]. In the crystal, the only directional inter-actions are very weak C-H ⋯π inter-actions involving both the pyrazole and benzene rings, leading to the formation of a three-dimensional network.

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید