Results 51 to 60 of about 105,820 (326)
Reduction of Rare‐Earth Stannole Sandwich Complexes to Tin‐Based Radical Ligands and Tin–Tin Bonds
Angewandte Chemie, EarlyView.One‐electron reduction of dimetallic rare‐earth stannole complexes with KC8 produces a di‐tin radical ligand that shows strong coupling between tin and yttrium, gadolinium or dysprosium. Two‐electron reduction of the stannole complexes further populates a delocalized {M2Sn2} molecular orbital, enhancing the tin–tin bonding and simultaneously ...
Siddhartha De +3 more
wiley +2 more sources
Synthesis, Isolation, and Reactivity of a Phosphinidene Telluride
Angewandte Chemie, EarlyView.We describe the synthesis and isolation of a phosphinidene telluride. This species acts as a versatile phosphinidene transfer reagent accompanied by the extrusion of elemental tellurium. Abstract The synthesis and isolation of a phosphorus(III) telluride is reported.
Chenyang Hu +4 more
wiley +2 more sources
Angewandte Chemie, EarlyView.A readily accessible, well‐defined iron(II) catalyst that demonstrates high efficiency and versatility in positional and geometrical alkene isomerization is presented. A comprehensive mechanistic study suggests an alkyl mechanism via an isolable iron hydride species and indicates the stereo‐ and rate‐determining β‐hydride elimination step exhibits a ...
Abdul‐Halim Obeid +3 more
wiley +2 more sources
Diisopropylamide and TMP turbo-grignard reagents : a structural rationale for their contrasting reactivities [PDF]
, 2010 A neutral dimeric molecule in crystal form, the diisopropylamido turbo-Grignard reagent "(iPr2N)MgCl⋅LiCl" (see structure; blue N, red O, green Mg, yellow Cl, black C) separates into several charged ate species in dynamic exchange with each other in THF ...
Armstrong, David R. +4 more
core +1 more source
Magnetism of Covalently Functionalized Carbon Nanotubes [PDF]
, 2011 We investigate the electronic structure of carbon nanotubes functionalized by adsorbates anchored with single C-C covalent bonds. We find that, despite the particular adsorbate, a spin moment with a universal value of 1.0 $\mu_B$ per molecule is induced ...
Ayuela, A. +2 more
core +3 more sources
Status of national research bioethics committees in the WHO African region
BMC Medical Ethics, 2005 Background The Regional Committee for Africa of the World Health Organization (WHO) in 2001 expressed concern that some health-related studies undertaken in the Region were not subjected to any form of ethics review.
Wambebe Charles +2 more
doaj +1 more source
BRCA1 Zinc RING Finger Domain Disruption Alters Caspase Response in Ovarian Surface Epithelial Cells [PDF]
, 2002 BACKGROUND: The frequently occurring 185delAG mutation occurs in the amino-terminal zinc RING domain of the breast and ovarian cancer susceptibility gene, BRCA1.
Johnson, Nicole C, Kruk, Patricia A
core +3 more sources
Advanced Science, EarlyView.The efficiency and durability of Coqpy@MWCNT hybrids (qpy = quaterpyridine) for electrocatalytic CO2 reduction are significantly improved by using coordination and enhanced π–π interaction strategy, with TOF of 79 s−1, TON of 5.7 × 105, FE close to 100%; which is achieved by functionalization of MWCNT with carboxyl groups and appending a pyrene group ...
Yue Wei +6 more
wiley +1 more source
Revista Brasileira de Zootecnia, 2000 Com o objetivo de avaliar a influência do amido dietético sobre a digestibilidade aparente dos nutrientes, para coelhos em fase de crescimento, quatro dietas experimentais foram elaboradas de forma a conter níveis crescentes de amido de milho (23, 28, 33
Alex Martins Varela de Arruda +2 more
doaj +1 more source
Identification and purification of an endogenous receptor for the lectin pallidin from Polysphondylium pallidum. [PDF]
, 1982 We report the identification and purification of an endogenous carbohydrate-containing receptor of pallidin, the cell surface lectin implicated in mediating cell-cell adhesion in the cellular slime mold Polysphondylium pallidum.
Drake, DK, Rosen, SD
core +1 more source