نتایج جستجو برای: triphenyl phosphine

تعداد نتایج: 4306  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1382

‏‎the main purpose of this research was to:1.develop a coking model for thermal cracking of naphtha.2.study coke inhibition methods using different coke inhibitors.developing a coking model in naphtha cracking reactors requires a suitable model of the thermal cracking reactor based on a reliable kinetic model.to obtain reliable results all these models shall be solved simultaneously.for this pu...

Journal: :Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 2013

2010
Raúl Ríos-Sanchez Simón Hernández-Ortega David Morales-Morales Alcives Avila-Sorrosa

In the title compound, [Pd(C(5)H(4)NS)(C(18)H(14)PS)(C(18)H(15)P)], the Pd(II) atom has a slightly distorted square-planar environment. Two coordination sites are occupied by a P,S-chelating 2-(diphenyl-phosphan-yl)benzene-thiol-ate ligand and the other two by a P atom from a triphenyl-phosphine ligand and an S atom from a pyridine-2-thiol-ate ligand, exhibiting a trans arrangement of the two P...

2010
Jinfang Zhang

The title compound, {[Cu(2)I(2)(C(12)H(8)N(6))(C(18)H(15)P)(2)]·2CH(3)CN}(n), contains centrosymmetric dinuclear Cu(2)I(2)(PPh(3))(2) units bridged by 3,6-bis-(4-pyrid-yl)-1,2,4,5-tetra-zine ligands lying also across crystallographic inversion centers, giving a chain structure in the ab plane. The distorted tetra-hedral Cu(I) atoms in the dinuclear unit are coordinated by two bridging iodide an...

2002
Ling Huang He Tian Fu-You Li De-Qing Gao Yan-Yi Huang Chun-Hui Huang

With a blue distyrylarylene derivative, 4,40-bis(2,2-di(2-methoxyphenyl)ethenyl)-1,10-biphenyl (CBS) as emitting material, double-layer and triple-layer electroluminescent (EL) devices were fabricated. For the device using tris-(1phenyl-3-methyl-4-isobutyryl-5-pyrozolone)-bis(triphenyl phosphine oxide) terbium (Tb(PMIP)3(TPPO)2) as the electron-transporting layer, blue EL emission with a maximu...

2012
Lam N. Pham Anthony T. Thames Frankie D. White Kang Rui Xiang Richard E. Sykora

The title compound, [Tb(NCS)3(C18H15OP)3], contains a six-coordinate Tb(II) cation surrounded by three O-bound triphenyl-phosphine oxide ligands and three N-bound thio-cyanate ligands, each in a fac arrangement. There are two crystallographically unique Tb(III) atoms in the asymmetric unit. One Tb(III) atom resides on a threefold rotation axis, while the other has no imposed crystallographic sy...

2013
Ramaiyer Venkatraman Kleopatra D. Ruddock Himangshu S. Das Md. Alamgir Hossain Frank R. Fronczek

The title compound, [Ag(C9H13N5S)Cl(C18H15P)2], crystallizes with four independent mol-ecules in the asymmetric unit, in each of which the Ag atom is in a distorted tetra-hedral coordination, defined by the chloride ligand, the S atom of the neutral ligand and two P atoms derived from the triphenyl phosphine ligands. The thio-semicarbazone acts as a monodentate ligand through its thione S atom....

2009
Kong Mun Lo Seik Weng Ng

In the salt, (H(3)O)(2)[Cd(2)Br(4.5)Cl(1.5)]·6C(18)H(15)OP, the hydro-nium cation forms short O-H⋯O hydrogen bonds to the O atoms of the triphenyl-phosphine oxide units. The centrosymmetric dinuclear anion has two halide atoms functioning in a bridging mode, which confers tetra-hedral coordination to the Cd atom. The three independent halide atoms are each a mixture of bromide and chloride; the...

2010
Li-Na Cui Qiong-Hua Jin Ke-Yi Hu Cun-Lin Zhang

In the title complex, [Ag(ClO(4))(CH(3)OH)(C(18)H(15)P)(2)], the angles around the central Ag(+) ion indicate that it is in a distorted tetrahedral coordination. The coordination sphere of silver is formed by two P atoms of two triphenyl-phosphine ligands, one O atom of a perchlorate anion and one O atom of a methanol mol-ecule. The crystal structure is stablized by a bifurcated inter-molecular...

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