نتایج جستجو برای: phosphane

تعداد نتایج: 385  

2012
Wade L. Davis Alfred Muller

The title compound, P(C10H7)3·0.5CHCl3, was isolated after the unsuccessful reaction of KSeCN and tris-(naphthalen-1-yl)phosphane. The solvent mol-ecule is disordered about an inversion center. The effective cone angle of the phosphine is 203°. In the crystal, weak C-H⋯Cl and C-H⋯π inter-actions are observed.

2012
Wade L. Davis Alfred Muller

In the title compound, C(17)H(14)NPSe, the P atom has a distorted tetra-hedral environment resulting in an effective cone angle of 163°. In the crystal, C-H⋯Se/N/π inter-actions are observed.

Journal: :Acta Crystallographica Section E Structure Reports Online 2011

Journal: :Catalysis Communications 2022

New naphtho[2,1,8,7-klmn]xanthene and benzo[kl]xanthene-based intramolecular phosphane–borane frustrated Lewis pairs (FLPs) were investigated in catalyzed H2 activation CO2 hydrogenation processes. According to DFT predictions at the B3LYP-D3 level, presence of rigid scaffolds increased P···B distances FLPs lead a remarkable drop energy barrier for (by up 19.2 kcal mol−1, compared parent dimeth...

Journal: :Angewandte Chemie 2008
David S Surry Stephen L Buchwald

Palladium-catalyzed amination reactions of aryl halides have undergone rapid development in the last 12 years, largely driven by the implementation of new classes of ligands. Biaryl phosphanes have proven to provide especially active catalysts in this context. This Review discusses the application of these catalysts in C-N cross-coupling reactions in the synthesis of heterocycles and pharmaceut...

2013
James Kakoullis Frank R. Fronczek Andrew W. Maverick

The title compound, C21H15O4P·0.5C4H8O, contains an ordered phosphane oxide in a general position and a tetra-hydro-furan solvent mol-ecule disordered about a twofold axis. All three aldehyde substituents are nearly coplanar with their attached benzene rings, with C-C-C-O torsion angles in the range 1.64 (17)-4.24 (19)°. All three have different conformations with respect to the P=O group, one ...

2011
Myron W. Jones Douglas R. Powell George B. Richter-Addo

The title compound, [Fe(NO)(2)(C(21)H(21)P)(2)], belongs to the family of metal dinitrosyl compounds with the general formula Fe(NO)(2)(L)(x), referred to collectively as 'dinitrosyl iron compounds' (DNICs). Herein we report the structure of a dinitrosyl iron diphosphane complex, [Fe(NO)(2)L(2)], with L = P(C(6)H(4)-p-CH(3))(3). There are two crystallographically independent but chemically equa...

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