نتایج جستجو برای: sulfur compound

تعداد نتایج: 159341  

Journal: :The Journal of organic chemistry 2008
Roman A Valiulin Andrei G Kutateladze

The adducts of trithiabicyclo[2.2.2]octane (TTBO) and carbonyl compounds undergo efficient photoinduced fragmentation with quantum yields comparable to that of dithiane adducts. The effect of the third sulfur on the stability of the respective radical cations and radicals is examined computationally and experimentally in a laser flash photolysis study. A straightforward synthetic approach to a ...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده علوم پایه 1391

one of the applications of nanotechnology is use of carbon nanotubes for the targeted delivery of drug molecules. to demonstrate the physical and chemical properties of biomolecules and identify new material of drug properties, the interaction of carbon nanotubes (cnts) with biomolecules is a subject of many investigations. cnts is a synthetic compound with extraordinary mechanical, thermal, el...

Journal: :Chemical & pharmaceutical bulletin 2001
O Muraoka S Ying K Yoshikai Y Matsuura E Yamada T Minematsu G Tanabe H Matsuda M Yoshikawa

A nitrogen analogue 4 of the naturally occurring sulfonium ion salacinol (1), a potent alpha-glucosidase inhibitor isolated from the Ayruvedic medicine Salacia reticulata, was synthesized and its inhibitory activity against alpha-glucosidase tested. Substitution of the sulfur atom in 1 with a nitrogen reduced the activity considerably. The solid-state stereostructure of the related compound (5)...

2008
Kong Wai Tan Yang Farina Chew Hee Ng Mohd Jamil Maah Seik Weng Ng

The asymmetric unit of the title compound, C(8)H(9)N(3)O(2)S, contains three independent mol-ecules which are stacked approximately over each other. In the crystal structure, centrosymmetric pairs of mol-ecules are formed through inter-molecular hydr-oxy-hydr-oxy O-H⋯O and hydr-oxy-sulfur O-H⋯S hydrogen bonds which are, in turn, linked into a two-dimensional network by N-H⋯O(hydr-oxy) hydrogen ...

2004
Svetlana Bashkova Andrey Bagreev Teresa J. Bandosz

This research focuses on activated carbons as adsorbents and catalysts for the removal of methyl mercaptan (MM) – odoriferous sulfur-containing compound commonly added to natural gas for leak detection purposes. Activated carbons are well known for their exceptional ability to adsorb some acidic gases. The application of activated carbons to remove hydrogen sulfide (one of the natural gas conta...

2009
Normen Peulecke Bhaskar R. Aluri Anina Wöhl Anke Spannenberg Mohammed H. Al-Hazmi

The title compound, C(24)H(30)N(2)P(2)S(2), was obtained by the reaction of Ph(2)PN(iPr)P(Ph)N(iPr)H with elemental sulfur in tetra-hydro-furan. In the solid state, intra-molecular N-H⋯S hydrogen bonding influences the mol-ecular conformation; a P-N-P-N torsion angle of 2.28 (9)° is observed. The two phenyl rings attached to one P atom form a dihedral angle of 74.02 (4)°.

2009
Irina Mnushkina

Current state-of-the-art epitaxial growth techniques employ various metalorganic and hydride gases to deliver constituent species to the substrate surface, particularly high vapor pressure species such as phosphorus and sulfur. Gas source molecular beam epitaxy (GSMBE) utilizes hydride gas sources and solid elemental sources. The more conventional growth approach, molecular beam epitaxy (MBE), ...

Journal: :Zbornik radova 2021

Most power transformer failures are associated with the presence of corrosive sulfur compounds in mineral insulating oil, which dibenzyl disulfide (DBDS) is best known and most widespread compound. The oil failed transformers usually contained DBDS, a compound pronounced affinity for formation copper (I) sulfide (Cu2S). Copper that does not dissolve conducts electricity, can be deposited on pap...

Journal: :iranian journal of basic medical sciences 0
shahab bohlooli department of pharmacology, school of medicine, ardabil university of medical sciences, ardabil, iran sadollah mohammadi department of pharmacology, school of medicine, ardabil university of medical sciences, ardabil, iran keyvan amirshahrokhi department of pharmacology, school of medicine, ardabil university of medical sciences, ardabil, iran hafez mirzanejad-asl department of pharmacology, school of medicine, ardabil university of medical sciences, ardabil, iran mohammad yosefi department of pharmacology, school of medicine, ardabil university of medical sciences, ardabil, iran amir mohammadi-nei department of pharmacology, school of medicine, ardabil university of medical sciences, ardabil, iran

objective(s): methylsulfonylmethane (msm) is a sulfur-containing compound found in a wide range of human foods including fruits, vegetables, grains and beverages. in this study the effect of msm pretreatment on acetaminophen induced liver damage was investigated. materials and methods: male sprague dawley rats were pretreated with 100 mg/kg msm for one week. on day seven rats were received acet...

2015
M. Umadevi P. Raju R. Yamuna A. K. Mohanakrishnan G. Chakkaravarthi

In the title compound, C24H21NO3S, the dihedral angles between the indole ring system (r.m.s. deviation = 0.030 Å) and the sulfur and ethyl-ene-bonded benzene rings are 80.2 (2) and 49.29 (15)°, respectively. The dihedral angle between the pendant benzene rings is 37.7 (2)°. In the crystal, mol-ecules are linked by C-H⋯O hydrogen bonds and weak C-H⋯π and π-π [centroid-to-centroid distances = 3....

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