نتایج جستجو برای: aza oxa thia crown

تعداد نتایج: 27262  

2010
Matloob Ahmad Hamid Latif Siddiqui Manzoor Iqbal Khattak Saeed Ahmad Masood Parvez

The asymmetric unit of the title compound, C(20)H(18)ClN(5)O(3)S, contains two independent mol-ecules with significantly different conformations of the heterocyclic thia-zine rings. In both mol-ecules, the thia-zine rings adopt half-chair conformations, with the S atoms displaced by 0.382 (3) and 0.533 (3) Å and N atoms -0.351 and -0.275 Å, respectively, from the planes formed by the remaining ...

2015
Mehmet Akkurt Victoria A. Smolenski Shaaban K. Mohamed Jerry P. Jasinski Alaa A. Hassan Mustafa R. Albayati

In the title compound, C17H17N3O3S, the cyclo-pentane ring is disordered over two sets of sites with an occupancy ratio of 0.775 (8):0.225 (8) for the affected atoms. The thia-zolidinyl ring is planar (r.m.s. deviation = 0.024 Å) and forms a dihedral angle of 65.13 (8)° with the attached phenyl ring. The mol-ecular packing is stabilized by C-H⋯O and C-H⋯π inter-actions, forming a three-dimensio...

2012
Yong Wang Wen-ge Zhang Yu-bo Wang Jing-wen Yu Lin Zhou

In the title compound, C(19)H(16)N(4)S(4), the mol-ecules exhibit a butterfly conformation, where the thia-diazole and attached benzene rings in two wings are almost coplanar, with dihedral angles of 0.8 (3) and 0.9 (3)°, respectively, while the two thia-diazole rings form a dihedral angle of 46.3 (3)°.

2012
Muhammad Nadeem Arshad Islam Ullah Khan Muhammad Zia-ur-Rehman Waseem Ahmed Abdullah M. Asiri

In the title compound, C(14)H(17)NO(5)S, the thia-zine ring adopts a half-chair conformation. The mol-ecule exhibits an intra-molecular O-H⋯O hydrogen bond, which forms a six-membered S(6) ring motif. The planes of the benzene and thia-zine rings are inclined at a dihedral angle of 15.30 (12)°.

2011
Michał A. Dobrowolski Marta Struga Daniel Szulczyk

The title mol-ecule, C(8)H(6)BrNS(2), is almost planar with a dihedral angle of 0.9 (1)° between the benzene and thia-zole rings. The values of the geometry-based index of aromaticity (HOMA) and the nucleus-independent chemical shift (NICS) for the two cyclic fragments of the title mol-ecule are 0.95 and -9.61, respectively, for the benzene ring, and 0.69 and -7.71, respectively, for the thia-z...

2011
Muhammad Shafiq Islam Ullah Khan Muhammad Zia-ur-Rehman Muhammad Nadeem Arshad Abdullah M. Asiri

In the title compound, C(17)H(16)BrN(3)O(2)S, the two fused rings are twisted by a dihedral angle of 6.61 (15)°. The thia-zine ring adopts a sofa conformation. The toluene ring is oriented at dihedral angles of 15.5 (2) and 20.6 (2)° with respect to the bromo-benzene and thia-zine rings, respectively. The benzyl-idene system is approximately planar [r.m.s. deviation = 0.0388 Å]. In the cyrstal,...

2009
Xue-Mei Yang

In the title compound, C(9)H(11)NOS, the thia-zolidinyl ring is almost perpendicular to the phenyl ring with N-C-C-C torsion angles of 71.7 (2) and 107.1 (2)°. In the crystal, mol-ecules are connected via N-H⋯O and O-H⋯N hydrogen bonds, forming layers.

2008
Hong-Shun Sun Ye-Ming Xu Wei He Shi-Gui Tang Cheng Guo

In the title compound, C(10)H(6)FNO(2)S, the benzene and thia-zolidine rings make a dihedral angle of 7.52 (3)°. Intra-molecular C-H⋯O and C-H⋯S hydrogen bonds result in the formation of nearly planar five- and six-membered rings; the adjacent rings are nearly coplanar. In the crystal structure, inter-molecular N-H⋯O hydrogen bonds link the mol-ecules.

2009
Hoong-Kun Fun Jia Hao Goh A. C. Vinayaka B. Kalluraya

In the title compound, C(16)H(20)N(2)O(3)S, the thia-zolidine ring is approximately planar [maximum deviation = 0.020 (2) Å] and forms a dihedral angle of 86.20 (11)° with the benzene ring. The mean plane through the propanamide unit forms dihedral angles of 88.54 (12) and 76.36 (12)°, respectively, with the thia-zolidine and benzene rings. In the crystal structure, mol-ecules are linked into c...

2007
P. Sakthivel P. S. Joseph P. Thomas Muthiah K. Sethusankar S. Thennarasu

In the title compound, C(17)H(22)N(4)O(3)S, the dihedral angle between the planes of the thia-diazole and phenyl rings is 63.47 (7)°. The dihedral angle between the thia-diazole ring and the acetamide side chain is 7.72 (9)°. Mol-ecules related by a 2(1) screw axis along the a axis are linked by inter-molecular N-H⋯O hydrogen bonds generating a supra-molecular chain.

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