نتایج جستجو برای: mol 18 in golooleh

تعداد نتایج: 17032165  

2012
Suchada Chantrapromma Thitipone Suwunwong Pumsak Ruanwas Nawong Boonnak Hoong-Kun Fun

The title 2-aza-bicyclo-[2.2.2]octa-2,5-diene derivative, C(14)H(18)N(4)O, crystallized out with two independent mol-ecules with similar conformations in the asymmetric unit. In each mol-ecule, the three six-membered rings adopt boat conformations. The mol-ecules exist in the enamine form. In the crystal, mol-ecules are linked by N-H⋯O and N-H⋯N hydrogen bonds into a two-dimensional network par...

Journal: Journal of Herbal Drugs 2010

Background & Aim: Ocimum basilicum L. is belong to the Lamiaceae family which is cultivated as a culinary, industrial and medicinal plants in some countries from thousands years ago. The seed of this plant is rich in poly un-saturated fatty acids (PUFA) and produced a large amount of mucilage. Experimental: The oil of seed was extracted separately and converted to fatty acids...

2011
Tian-Yi Li Bing-Bing Li

The asymmetric unit of the title Schiff base compound, C(18)H(20)ClN(3)O(2), contains two independent mol-ecules. An O-H⋯N hydrogen bond contributes to the planarity of each mol-ecule: the dihedral angles between the two benzene rings are 12.8 (3) and 27.2 (3)° in the two mol-ecules. In the crystal, mol-ecules are linked through inter-molecular N-H⋯O hydrogen bonds, forming chains along the a a...

2012
Sarah Drzymala Werner Kraus Franziska Emmerling Matthias Koch

The asymmetric unit of the title compound, C(18)H(26)O(5), which is known as α-zearalanol, contains two mol-ecules having the same conformation, with a r.m.s. deviation of less than 0.03 Å for all non-H atoms. In each independent mol-ecule, an intra-molecular O-H⋯O hydrogen bond stabilizes the mol-ecular conformation. In the crystal, O-H⋯O hydrogen bonds link the mol-ecules, forming infinite ch...

2008
Ling-Ling Zhao Yue Gai Hisayoshi Kobayashi Chang-Qi Hu Hui-Ping Zhang

The asymmetric unit of the title compound, C(18)H(24)O(6)·H(2)O, contains a 14-membered macrolide mol-ecule and a water mol-ecule. In the crystal structure, intra-molecular C-H⋯O and O-H⋯O hydrogen bonds help to stabilize the mol-ecular conformation, while inter-molecular O-H⋯O hydrogen bonds link the mol-ecules, forming an infinite network. The absolute configuration was assigned by comparison...

2008
Tao Zeng Ju-Feng Sun

The title compound, C(16)H(26)O(2), was easily obtained in high yield when 4-bromo-methyl-2,6-di-tert-butyl-phenol was reacted with methanol. There are two independent mol-ecules in the asymmetric unit. The meth-oxy group in each of the independent mol-ecules was found to be disordered, with site-occupation factors of 0.8728 (18)/0.1272 (18) and 0.8781 (17)/0.1219 (17).

2011
Sadiya Raja Michael Bolte

The title compound, C(19)H(14)ClNO(3)·0.2H(2)O, crystallizes with five mol-ecules and a disordered water mol-ecule in the asymmetric unit. Four of the five mol-ecules form hydrogen-bonded dimers via N-H⋯O hydrogen bonds towards another symmetry-independent mol-ecule, whereas the fifth mol-ecule forms a hydrogen-bonded dimer with its symmetry equivalent, also via N-H⋯O hydrogen bonds. The dihedr...

2011
Fan Kou Bin Liu Ying Bai Jin Kong Huilu Wu

In the title mol-ecule, C(18)H(18)N(4)O, the dihedral angle between the mean planes of the two benzimidazole ring systems is 61.5 (1)°.

2013
Hoong-Kun Fun Ching Kheng Quah Krishnendu Aich Sangita Das Shyamaprosad Goswami

In the title compound, C14H17N3O2, the mean plane of the 1,8-naphthyridine ring system (r.m.s deviation = 0.020 Å) forms a dihedral angle of 23.4 (1)° with the acetamide moiety (r.m.s deviation = 0.001 Å). The mol-ecular structure is stabilized by an intra-molecular O-H⋯N hydrogen bond, which generates an S(5) ring motif. In the crystal, mol-ecules are linked into inversion dimers by pairs of N...

2012
Ghulam Mustafa Islam Ullah Khan Farhan Mehmood Khan Mehmet Akkurt

In the title compound, C(17)H(18)N(2)O(5)S, the dihedral angle between the aromatic rings is 68.59 (10)° and the C-S-N-C torsion angle is -81.84 (18)°. The mol-ecular conformation is stabilized by an intra-molecular N-H⋯O hydrogen bond, generating an S(6) ring. In the crystal, mol-ecules are linked by C-H⋯O and O-H⋯O hydrogen bonds into a three-dimensional network.

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