Results 141 to 150 of about 19,048 (288)

Novel ternary bipolar host material with carbazole, triazole and phosphine oxide moieties for high efficiency sky-blue OLEDs

open access: yes, 2014
A novel bipolar host material 9-(3-(5-(4-(diphenylphosphoryl) phenyl)-4-phenyl-4H-1,2,4-triazol-3-yl)phenyl)-9H-carbazole (CTPO) with carbazole, triazole and phosphine oxide moieties was designed and synthesized.
Li, WF (李宛飞)   +4 more
core  

Phosphine oxide monolayers on SiO2 surfaces

open access: yes, 2008
(Figure Presented) Getting a grip: H-bond formation is shown to be the main mode of interaction for monolayer formation of phosphine oxides on SiO 2 substrates (see images), with covalent reaction involved to a lesser extent. In contrast to the situation
Ho, Johnny C.   +3 more
core   +1 more source

Tris(hydroxypropyl)phosphine Oxide: A Chiral Three-Dimensional Material with Nonlinear Optical Properties [PDF]

open access: yes, 2010
The achiral C_(3v) organic phosphine tris(hydroxypropyl)phosphine oxide (1) crystallizes in the unusual chiral hexagonal space group P6_3. The structure is highly ordered because each phosphine oxide moiety forms three hydrogen bonds with adjacent ...
Yan, Elsa C. Y.   +5 more
core  

Bis(α-hydroxycycloalkyl)phosphine Oxides Obtained from White Phosphorus via Phosphine Oxide H3PO: Synthesis, Molecular Structure, Coordination Properties and Biological Activity

open access: yes, 2020
© 2020 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. Reaction of the electrochemically in situ from elemental white phosphorus generated phosphine oxide H3PO in a single electrochemical cell, supplied with lead cathode and aluminium anode,
Samigullina A.   +8 more
core  

Aqua coordination to attenuate the luminescence properties of europium(iii)–phosphine oxide porous coordination polymers

open access: yes, 2017
Europium(iii)–phosphine oxide porous coordination polymers (Eu–PCPs) constructed from Eu(OTf)3and tris(4-(4′-carboxylphenyl)phenyl)phosphine oxide as ligands are reported.
Hyuma Masu   +4 more
core   +1 more source

Toward Chromoselective Transformations in Biological Systems: Perspectives and Challenges

open access: yesAngewandte Chemie International Edition, EarlyView.
Controlling biological systems with small‐molecule chromophores has evolved into a powerful strategy and is applied from chemical biology to medicine. However, the complexity of in vivo systems cannot be matched by a single wavelength of light. Developing methods to combine and individually control multiple chromophores is crucial.
Nadja A. Simeth
wiley   +1 more source

Cyclen phosphine oxide: Hydrogen bonding and transannular N→P interaction

open access: yes, 1999
International audienceThe crystal structure of cyclen phosphine oxide demonstrates the existence of an N→P interaction in the crystalline ...
Chuburu, F.   +3 more
core  

Tri-n-octylphosphine oxide and tris (2-ethylhexyl) phosphine oxide complexes of uranyl nitrate [PDF]

open access: yes, 1963
Thesis (Ph.D.)--Boston UniversityDue to the necessity of recovering uranium from reactor fuels, a number of separation methods have been investigated in recent years. Of these, the method of solvent extraction has proved to be a practical one. Long chain
Soman, Yeshwant Dwarkanath
core  

Synthesis and Characterization of Phosphine Oxide Containing Monomers and of the Flame Resistant Polymers Prepared Therefrom

open access: yes, 2000
This thesis has focused on the synthesis and characterization of amino functional monomers, principally monomers containing aryl phosphine oxide units.
Tchatchoua, Ngassa
core  

Unlocking Catalyst Activation as a Critical Bottleneck in Cross‐Coupling Reactions: Room‐Temperature Couplings of Weak Nucleophiles Enabled by [Pd(1‐MeNAP)TFA]2 Precatalysts

open access: yesAngewandte Chemie International Edition, EarlyView.
In many Pd‐catalyzed cross‐couplings, catalyst performance has been found to be limited by catalyst activation. Methylnaphthyl (MeNAP) palladium trifluoroacetate dimers are presented as easy‐to‐store and easy‐to‐handle precursors, which rapidly activate under reaction conditions, even when only weakly coordinating, non‐reducing nucleophiles are present.
Sourav Manna   +6 more
wiley   +1 more source

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