نتایج جستجو برای: مدل l thia

تعداد نتایج: 737396  

Journal: :Jurnal Penelitian Pendidikan IPA (JPPIPA) 2023

The purpose of this study was to analyze the optimal dose Tembelekan leaf extract (Lantana camara Linn) which has antibacterial properties in inhibiting or killing Edwardsiella tarda bacteria. method used research is Completely Randomized Design (CRD). results yield obtained from tembelakan amounted 8.9%. positive phytochemical test contained active compounds, namely flavonoids, alkaloids, tann...

2011
Hui-Ling Hu Geng-Ren Yang Chun-Wei Yeh

In the crystal structure of the title compound, C(17)H(18)N(2)O(4)S(3), mol-ecules are connected into centrosymmetric dimers via weak inter-molecular C-H⋯π inter-actions. These dimers are further connected through a series of weak C-H⋯O hydrogen bonds, while futher C-H⋯π inter-actions involving the phenyl and thia-zoline rings are also observed. The thia-zolidine ring is twisted from the benzen...

2012
Sung Kwon Kang Nam Sook Cho Siyoung Jang

In the title compound, C(12)H(12)N(6)S(4), the two terminal thia-diazole rings are twisted with respect to the central benzene ring, making dihedral angles of 54.28 (4) and 76.56 (3)°. The dihedral angle between the two thia-diazole rings is 27.77 (4)°. Inter-molecular N-H⋯N hydrogen bonds stabilize the crystal packing, linking the mol-ecules into a tape along the b axis.

2008
Li-he Yin Rong Wan Feng Han Bin Wang Jin-tang Wang

In the mol-ecule of the title compound, C(17)H(15)N(3)O(3)S·0.5H(2)O, the thia-diazole ring is oriented with respect to the two 2-methoxy-phenyl rings at dihedral angles of 3.70 (3) and 1.74 (2)°. An intra-molecular N-H⋯O hydrogen bond results in the formation of a planar six-membered ring, which is oriented with respect to the thia-diazole ring at a dihedral angle of 1.33 (3)°. Thus, all of th...

2014
B. C. Manjunath M. Manjula K. R. Raghavendra S. Shashikanth K. Ajay Kumar N. K. Lokanath

In the title compound, C21H19NO2S2, the seven-membered thia-zepine ring adopts a slightly distorted twist boat conformation. The dihedral angle between the benzene rings is 67.4 (2)°. The mean plane of the thio-phene ring is twisted by 59.3 (2) and 87.7 (2)° from the mean planes of the benezene rings. In the crystal, inversion dimers linked by pairs of C-H⋯O hydrogen bonds generate R 2 (2)(20) ...

2013
Saeed Ahmad Muhammad Shafiq M. Nawaz Tahir William T. A. Harrison Islam Ullah Khan

In the title compound, C16H13Cl2N3O2S, the dihedral angle between the aromatic rings is 6.62 (2)° and the C=N-N=C torsion angle is 176.2 (4)°. The thia-zine ring shows an envelope conformation, with the S atom displaced by 0.633 (6) Å from the mean plane of the other five atoms (r.m.s. deviation = 0.037 Å). The Cl atom is an an axial conformation and is displaced by 2.015 (6) Å from the thia-zi...

2012
Hatem A. Abdel-Aziz Hazem A. Ghabbour Tze Shyang Chia Hoong-Kun Fun

In the title compound, C(17)H(16)N(2)OS, the central thia-zolidin-4-one ring forms dihedral angles of 66.49 (9) and 79.45 (6)° with the two methyl-substituted benzene rings. In the crystal, mol-ecules are stacked in columns along the b axis through C-H⋯π inter-actions. The H atoms of one of the methyl groups are disordered over two orientations with equal site occupancies.

2011
Christoph E. Strasser Stephanie Cronje Helgard G. Raubenheimer

The title compound, [WCl(2)(C(9)H(10)N(2)S(2))(CO)(3)], is a hepta-coordinate tungsten(II) complex with a capped-octa-hedral coordination sphere in which one CO ligand caps a face formed by a chloro ligand and the two other carbonyls. The chloro ligands are mutually trans positioned at an angle of 156.98 (7)°. The chelating bis-(4-methyl-1,3-thia-zol-2-yl)methane ligand coordinates with the imi...

2008
Rong Wan Li-He Yin Feng Han Bin Wang Jin-Tang Wang

In the mol-ecule of the title compound, C(18)H(13)Cl(2)N(3)O(2)S(2), the thia-zolidinone ring has an envelope conformation with the S atom displaced by 0.394 (3) Å from the plane of the other ring atoms. The thia-diazole ring is oriented at a dihedral angle of 7.40 (4)° with respect to the 4-methoxy-phenyl ring. Intra-molecular C-H⋯S, C-H⋯N and C-H⋯Cl hydrogen bonds result in the formation of t...

Journal: : 2022

این پژوهش با الهام گرفتن از نتایج یک طرح مطالعاتی کاربردی، رویکرد سلسله­‌مراتبی جهت پیگیری فرایند توسعه تأمین‌کنندگان و حمایت تصمیمات موجود در هر مراحل آن ارائه‌ می‌کند. ابتدا، زمینه‌های تأمین نیازمند سپس واجد شرایط هریک زمینه‌ها به کمک تصمیم‌گیری چندشاخصه بهترین-بدترین مشخص می‌گردند. معیارهای شناسایی نیز مرور مطالعات پیشین بهره‌گیری نظرات خبرگان حوزه‌ی خرید استخراج‌شده‌اند. درنهایت، مدل ریاضی ...

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