نتایج جستجو برای: mol 18 in golooleh

تعداد نتایج: 17032165  

2009
Muhammad Hanif Ghulam Qadeer Nasim Hasan Rama Javeed Akhtar Madeleine Helliwell

The asymmetric unit of the title compound, C(18)H(19)N(3)O(3), contains two crystallographically independent but similar mol-ecules. The triazole ring is oriented with respect to the benzene rings to form dihedral angles of 57.96 (6) and 7.01 (6)° in one mol-ecule, and 64.37 (5) and 10.73 (5)° in the other. The two independent mol-ecules are linked into a dimer by inter-molecular N-H⋯O hydrogen...

2010
You-Yue Han Qiu-Rong Zhao

In the title compound, C(17)H(18)N(2)O(4), the dihedral angle between the two benzene rings is 6.0 (2)° and the mol-ecule adopts an E configuration with respect to the C=N bond. There is an intra-molecular O-H⋯O hydrogen bond in the mol-ecule, which generates an S(6) ring. In the crystal, mol-ecules are linked through inter-molecular N-H⋯O hydrogen bonds, forming C(4) chains running along the c...

2009
S. Sathish Kumar Helen P. Kavitha Jasmine P. Vennila G. Chakkaravarthi V. Manivannan

The title compound, C(18)H(20)N(2)O, crystallizes with two mol-ecules in the asymmetric unit. The seven-membered ring in both mol-ecules adopts a distorted chair conformation. The dihedral angles between the phenyl rings are 43.2 (1) and 54.7 (1)° in the two mol-ecules. The crystal packing features N-H⋯O and weak N-H⋯π and C-H⋯π inter-actions.

2008
Nicole Riddell Robert McCrindle Gilles Arsenault Alan J Lough

The title compound, C(18)H(13)Cl(11), is an undecachlorinated commercial flame retardant. The asymmetric unit contains two independent half-mol-ecules. The complete mol-ecules are generated by crystallographic inversion symmetry, causing the terminal H atoms and one of the Cl atoms to be disordered equally over two sites in each mol-ecule. The central eight-membered rings are in chair-type conf...

2009
Xing-Xing Yang Guan-Feng Liu Da-Bin Qin

The title compound, C(20)H(18)N(2)O, which crystallizes with two independent mol-ecules (A and B) in the asymmetric unit, is composed of three aromatic rings (I, II and III). The conformation of the two independent mol-ecules is slightly different. The dihedral angles between the central aromatic ring II and rings I and III are 47.13 (9) and 89.36 (9)°, respectively, for mol-ecule A, and 29.60 ...

2011
Jun Wang Shuangshuang Gu Leixia Zhang Fuan Wu Xijie Guo

In the mol-ecule of the title compound, C(14)H(18)O(4), the C=C double bond is in an E configuration. The mol-ecule is almost planar (r.m.s. deviation of all non-H atoms = 0.04 Å). An intra-molecular O-H⋯O hydrogen bond occurs. In the crystal, inter-molecular O-H⋯O inter-actions link the mol-ecules into ribbons extending in [110].

2012
Ramin Karimian Hassan Hosseini-Monfared Rahman Bikas N. Burcu Arslan Canan Kazak Ahmet Koroglu

In the title compound, C(22)H(18)N(4)O(2), the mol-ecules lie across an inversion centre. The dihedral angle between the mean planes of the central and terminal benzene rings is 66.03 (2)°. The mol-ecule displays trans and anti conformations about the C=N and N-N bonds, respectively. In the crystal, N-H⋯O hydrogen bonds, with the O atoms of C=O groups acting as acceptors, link the mol-ecules in...

2008
Annika Becker Markus Schürmann Hans Preut Martin Hiersemann

The title compound, C(11)H(18)O(3), was synthesized to prove the relative configuration of the corresponding acyclic C1-C8 stereopentade. It crystallizes with two mol-ecules in the asymmetric unit, which show only slight differences. The mol-ecules are linked via O-H⋯O hydrogen bonds, resulting in two crystallographically independent chains of mol-ecules propagating in the a-axis direction. The...

2011
Jun-Da Huang Qin-Qin Tang Xiao-Yan Chen Yun Ye Yi Wang

The mol-ecule of the title compound, C(17)H(10)F(4)O, is roughly planar, with a dihedral angle of 5.59 (14)° between the two phenyl rings. The mol-ecule has an E conformation with respect to the olefinic bonds. In the crystal, mol-ecules are connected through C-H⋯O hydrogen bonds and there is slipped π-π stacking [centroid-centroid distance = 3.7983 (18), slippage =1.309 ;Å] between symmetry-re...

2017
Trung Vu Quoc Linh Nguyen Ngoc Cong Nguyen Tien Chien Thang Pham Luc Van Meervelt

The title compound, C9H8N2O2S3, crystallizes with two mol-ecules (A and B) in the asymmetric unit. Both have similar conformations (overlay r.m.s. deviation = 0.209 Å) and are linked by an N-H⋯O hydrogen bond. In both mol-ecules, the thio-phene rings show orientational disorder, with occupancy factors of 0.6727 (17) and 0.3273 (17) for mol-ecule A, and 0.7916 (19) and 0.2084 (19) for mol-ecule ...

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