نتایج جستجو برای: triazine

تعداد نتایج: 2708  

2011
Qiu-Guang Sang Jing-Kui Yang

In the macrocyclic title compound, C(26)H(12)Cl(2)N(6)O(4), an O-atom-bridged calix[2]naphthalene-[2]triazine synthesized using a one-pot approach from naphthalene-2,7-diol and cyanuric chloride, the two isolated naphthalene planes and the two triazine-2,6-di-oxy planes adopt a 1,3-alternate configuration, with a dihedral angle of 84.10 (8)° between the naphthalene rings and a dihedral angle of...

2012
Hong-Hua Sun Zhi-Yong Hu Duan-Lin Cao

In the title compound, C(23)H(46)N(6)O(2), the two hy-droxy groups are located on opposite sides of the triazine ring. One of the hy-droxy groups links with the triazine N atom via an intra-molecular O-H⋯N hydrogen bond. Inter-molecular O-H⋯N and N-H⋯O hydrogen bonding is observed in the crystal structure. π-π stacking is also observed between parallel triazine rings of adjacent mol-ecules, the...

Journal: :The journal of physical chemistry. A 2008
Vadim A Mozhayskiy John D Savee Jennifer E Mann Robert E Continetti Anna I Krylov

The highly debated three-body dissociation of sym-triazine to three HCN products has been investigated by translational spectroscopy and high-level ab initio calculations. Dissociation was induced by charge exchange between the sym-triazine radical cation and cesium. Calculated state energies and electronic couplings suggest that sym-triazine is produced in the 3s Rydberg and pi* <-- n manifold...

2008
Wei Wang

In the title compound, C(9)H(12)Cl(2)N(4), the piperidine ring adopts a chair conformation. The electron delocalization of the molecule is indicated by the similar C⋯N distances within the triazine ring and by the double-bond character of the C=N triazine-piperidine connectivity. Weak intra-molecular C-H⋯N hydrogen bonds link the two rings within the mol-ecule, which exhibits a pseudo-mirror pl...

Journal: :Journal of agricultural and food chemistry 2008
Alegria Cabrera Lucia Cox William C Koskinen Michael J Sadowsky

Amendments are frequently added to agricultural soils to increase organic matter content. In this study, we examined the influence of alperujo, an olive oil mill waste, on the availability of two triazine herbicides, terbuthylazine and atrazine, in two different sandy soils, one from Sevilla, Spain, and the other from Minnesota. The effect of aging on herbicide sorption and bioavailability was ...

Journal: :Chemical communications 2014
Kwangseok Do Hyeju Choi Kimin Lim Hyunjun Jo Jin Woo Cho Mohammad K Nazeeruddin Jaejung Ko

Novel star-shaped hole transporting materials with a triazine unit have been synthesized. When the new Triazine-Th-OMeTPA was used as a hole transporting material in perovskite solar cells, the power conversion efficiency reached 12.51% under AM 1.5 G (100 mW cm(-2)) illumination, showing competitive photovoltaic performance with the widely used spiro-OMeTAD based solar cell (13.45%).

ژورنال: مواد پرانرژی 2019

In this study, the recent developments in the synthesis of some azo- linked high- nitrogen energetic heterocycles such as tetrazole, triazole, imidazole, pyrazole, triazine, tetrazine and their salts will be investigated. These energetic compounds generally exhibit desirable properties and performance, which in some cases are superior to the conventional energetic materials such as hexahydro-1,...

2000
Joseph B. Fischer Jerry L. Michael

We have used thermospray LC-MS to confirm three highly polar metabolites (A, B. and G) of the herbicide hexazinone [3-cyclohexyl-6-(dimethylamino)-l-methy~-1,3.S-triazine-2,4( lH,3H)-dione]. and chemical ionization GC-MS to confirm two other metabolites (D and E) in extracts of soil and vegetation from a forest in the Central Alabama Piedmont. Selected-ion monitoring (SIM) of the protonated mol...

1997

Triazine and chloroacetanilide concentrations in rainfall samples collected from a 23-state region of the United States were analyzed with microtiter-plate enzyme-linked immunosorbent assay (ELISA). Thirty-six percent of rainfall samples (2072 out of 5691) were confirmed using gas chromatography/mass spectrometry (GC/MS) to evaluate the operating performance of ELISA as a screening test. Compar...

2003
Zhaoqi Zhan Johannes A. Lercher

Hydrolysis of cyanuric acid, melamine, melem, atrazine and melamine-formaldehyde resin was found to be catalyzed by an A1203 catalyst. The reactions occur irreversibly with cleavage of the s-triazine ring between 240 and 450°C. The s-triazine-ring is hydrolyzed to ammonia and carbon dioxide, and the substituted groups to the corresponding molecules by addition of hydrogen.

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