نتایج جستجو برای: substituted benzene
تعداد نتایج: 57887 فیلتر نتایج به سال:
stability of the π-π stacking interactions in the ben||substituted-coronene and hfben||substituted-coronene complexes was studied using the computational quantum chemistry methods (where ben and hfben are benzene and hexaflourobenzene, || denotes π-π stacking interaction, substituted-coronene is coronene molecule which substituted with four x groups, and x= nh2, ch3, oh, h, f, cf3, cn and no). ...
In the title mol-ecule, C(23)H(18)O(5), the meth-oxy-substituted benzene ring makes dihedral angles of 65.12 (4) and 88.55 (4)° with the other two benzene rings. These two benzene rings form a dihedral angle of 45.70 (4)°. In the crystal, mol-ecules are linked into inversion dimers by pairs of weak C-H⋯O hydrogen bonds.
The conformation about the ethene bond [1.316 (3) Å] in the title compound, C(25)H(18)BrNO, is E. The quinoline ring forms dihedral angles of 67.21 (10) and 71.68 (10)° with the benzene and bromo-substituted benzene rings, respectively. Highlighting the non-planar arrangement of aromatic rings, the dihedral angle formed between the benzene rings is 58.57 (12)°.
The asymmetric unit of the title compound, C(23)H(23)ClFN(5)O(2), contains two crystallographically independent mol-ecules. In one mol-ecule, the pyrazole ring makes dihedral angles of 43.93 (7) and 35.82 (7)°, respectively, with the fluoro- and chloro-substituted benzene rings, while the corresponding angles in the other mol-ecule are 52.26 (8) and 36.85 (7)°. The piperazine rings adopt chair ...
In the title compound, C(35)H(32)N(4)O(4), the pyrazole ring forms a dihedral angle of 15.04 (8)° with the adjacent pyrimidine ring. The pyrimidine ring forms dihedral angles of 9.95 (8) and 1.86 (7)° with its adjacent meth-oxy-substituted benzene rings, whereas the equivalent angles are 80.24 (9) and 11.55 (9)° for the pyrazole ring and its adjacent benzene rings. The crystal packing features ...
In the title compound, C(17)H(17)N(3)O(2)S, the five-membered ring forms dihedral angles of 53.02 (3) and 78.57 (3)° with the 3-meth-oxy-substituted and 2-meth-oxy-substituted benzene rings, respectively. In the crystal structure, mol-ecules are linked into centrosymmetric dimers via inter-molecular N-H⋯S hydrogen bonds.
In the title benzoate derivative, C13H6ClN3O8, the planes of the benzene rings form a dihedral angle of 63.46 (5)°. The dihedral angles between the benzene ring and its nitro groups are 12.78 (16)° for the first ortho, 28.4 (4) and 17.4 (4)° for the second (disordered) ortho and 3.58 (16)° for the para nitro group. The central ester moiety, -C-(C=O)-O-, is essentially planar (r.m.s. deviation f...
In the title compound, C(20)H(19)N(3)OS, the central benzene ring makes dihedral angles of 45.36 (9) and 55.33 (9)° with the thio-phene ring and the dimethyl-substituted benzene ring, respectively. The dihedral angle between the thio-phene ring and dimethyl-substituted benzene ring is 83.60 (9)°. The thio-phene ring and the benzene ring are twisted from the mean plane of the C(=O)-N-N=C bridge ...
The title compound, C(21)H(19)ClN(2)OS, exists in a cis conformation with respect to the N=C bond [1.2608 (13) Å]. The cyclo-hexene ring adopts a distorted half-chair conformation. The thia-zolidine ring is close to being planar (r.m.s. deviation = 0.057 Å) and makes dihedral angles of 62.92 (6) and 56.32 (6)°, respectively, with the benzene ring and the chloro-substituted benzene ring. The dih...
Stability of the π-π stacking interactions in the Ben||substituted-coronene and HFBen||substituted-coronene complexes was studied using the computational quantum chemistry methods (where Ben and HFBen are benzene and hexaflourobenzene, || denotes π-π stacking interaction, substituted-coronene is coronene molecule which substituted with four X groups, and X= NH2, CH3, OH, H, F, CF3, CN and NO). ...
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