نتایج جستجو برای: methyl triphenyl phosphoranylidene

تعداد نتایج: 111332  

2009
Diana Yanover Menahem Kaftory

The title compound, C(21)H(16)N(2), has been known since 1877. Although the crystal structure of 36 derivatives of lophine are known, the structure of parent compound has remained unknown until now. The three phenyl rings bonded to the imidazole core are not coplanar with the latter, with dihedral angles of 21.4 (3), 24.7 (3), and 39.0 (3)°, respectively, between the phenyl ring planes in the 2...

2016
Pedro Castillero Javier Roales Tânia Lopes-Costa Juan R. Sánchez-Valencia Angel Barranco Agustín R. González-Elipe José M. Pedrosa

Open porous and transparent microcolumnar structures of TiO₂ prepared by physical vapour deposition in glancing angle configuration (GLAD-PVD) have been used as host matrices for two different fluorescent cationic porphyrins, 5-(N-methyl 4-pyridyl)-10,15,20-triphenyl porphine chloride (MMPyP) and meso-tetra (N-methyl 4-pyridyl) porphine tetrachloride (TMPyP). The porphyrins have been anchored b...

2012
Xu Huang Qi-Ming Qiu Xin Wang Qiong-Hua Jin Cun-Lin Zhang

The title complex, [Ag(C(18)H(15)P)(4)]BF(4), was prepared by the reaction of silver(I) tetra-fluorido-borate and triphenyl-phosphane in the presence of 1,2-bis-(pyridin-2-yl)ethyl-ene. The Ag(I) atom is tetra-hedrally coordinated by four P atoms from triphenyl-phosphane (PPh(3)) ligands. Due to symmetry, the tetra-fluorido-borate anion is disordered over three positions (each with one third oc...

2009
A. Yasodha A. Sivakumar G. Arunachalam A. Puratchikody

A series of 1-substituted 2, 4, 5 triphenyl imidazoles were synthesized by the reaction equimolar mixture of 2, 4, 5 triphenyl imidazole with chloro compound in the presence of anhydrous potassium carbonate. The newly synthesized compounds were characterized on the basis of UV, IR and H NMR spectra. The synthesized compounds were screened for antiinflammatory, antimicrobial activities. Antiinfl...

Journal: :Plant physiology 1967
P L Steponkus F O Lanphear

The method of evaluating cold injury in woody plants by the use of triphenyl tetrazolium chloride has been refined to eliminate bias associated with visual differentiation between varying degrees of tetrazolium reduction and to predict tissue survival at a later date. An advantage of the method described here is that a small amount of tissue (50-100 mg) is required; this, therefore, allows for ...

Journal: :Acta Crystallographica Section E Structure Reports Online 2009

2005
Peter L. Steponkus

The method of evaluating cold injury in woody plants by the use of triphenyl tetrazolium chloride has been refined to eliminate bias associated with visual differentiation between varying degrees of tetrazolium reduction and to predict tissue survival at a later date. An advantage of the method described here is that a smuall amount of tissue (50-100 mg) is required; this, therefore, allows !fo...

2009
Jie-Qiang Wu Qiong-Hua Jin Ke-Yi Hu Cun-Lin Zhang

The structure of the title complex, [Ag(C(12)H(8)N(2))(C(18)H(15)P)]CF(3)SO(3), is based on a distorted trigonal-planar N(2)P coordination of the Ag(I) ion, provided by two N atoms of the bidentate phenanthroline ligand and one P atom of the triphenyl-phosphine ligand. The phenanthroline ligand and one phenyl ring of the triphenyl-phosphine ligand almost lie in one plane (maximum deviation = 0....

2009
Weiping Gao Yanhong Zhou Hong Zhang

In the title binuclear silver(I) complex, [Ag(2)Br(2)(C(18)H(15)P)(3)]·0.85C(4)H(8)O, the two independent silver(I) ions are briged by two bromide ions. One Ag(I) ion is coordinated by two triphenyl-phosphine groups with a square-planar geometry, while the second is coordinated by one triphenyl-phine group with a trigonal-planar geometry. The structure is very similar to that of the dichloro-me...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید