Results 101 to 110 of about 88,515 (283)

Small Molecule Activation by Metallylenes and their Follow‐Up Reactions

ChemistryEurope, EarlyView.
Metallylenes offer a promising, tunable platform for small molecule activation, combining transition metal‐like reactivity with earth abundance. Ligand modifications and computational insights have unlocked new catalytic pathways, expanding their potential in sustainable synthesis.
Eveline H. Tiekink, Matthijs W. Kragtwijk, Trevor A. Hamlin   +2 more
wiley   +1 more source

Digestibilidade aparente dos nutrientes de rações contendo diferentes fontes de fibra e níveis de amido com coelhos em crescimento

Revista Brasileira de Zootecnia, 2002
O objetivo do presente estudo foi avaliar a digestibilidade aparente dos nutrientes com coelhos em crescimento alimentados com rações contendo diferentes níveis de amido (22 a 32% em média) mediante a inclusão de milho grão e diferentes fontes de fibra ...
Alex Martins Varela de Arruda, Darci Clementino Lopes, Walter Motta Ferreira, Horacio Santiago Rostagno, Augusto César de Queiroz, Elzânia Sales Pereira, Luiz Fernando Teixeira Albino, José Francisco da Silva   +7 more
doaj  

Avaliação da qualidade do amido em clones S1 de mandioca. [PDF]

, 2013
O amido é atualmente o produto mais importante da mandioca, em razão das suas inúmeras aplicações nas indústrias de papel e celulose, petrolífera, mineração, de alimentos, farmacêutica e outras.
OLIVEIRA, E. J. de, OLIVEIRA, L. A. de, SALES, A. C., SANTOS, V. da S.   +3 more
core  

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., Sanchez-Portal, D., Santos, Elton J. G.   +2 more
core   +3 more sources

Magneto‐Optical Correlations in a High Symmetry Dysprosium Complex Reveal an Almost “Ideal Non‐SMM” and Orange‐To‐Red DyIII‐Based Emitter

ChemistryEurope, EarlyView.
Dysprosium in high‐symmetry environment: an original crystal‐field energetic profile provides an experimental demonstration of the oblate/prolate theory and is also responsible for an unprecedented orange‐to‐red emission. The importance of investigating high‐symmetry systems in order to reveal properties that would otherwise be concealed in less ...
Nimisha Jain, Gregoire David, Marie Cordier, Yan Suffren, Boris Le Guennic, Yann Sarazin, Kevin Bernot   +6 more
wiley   +1 more source

Using Sterics to Promote Reactivity in \u3cem\u3efac\u3c/em\u3e-Re(CO)\u3csub\u3e3\u3c/sub\u3e Complexes of Some ‘Non-Innocent’ NNN-Pincer Ligands [PDF]

, 2011
Two new redox active ligands based on di(2-(3-organopyrazolyl)-p-tolyl)amine have been prepared in order to investigate potential effects of steric bulk on the structures, electronic properties, or reactivity of tricarbonylrhenium(I) complexes. Replacing
Bennett, Brian, Gardinier, James R., Liddle, Brendan J, Lindeman, Sergey, Toussaint, John, Wanniarachchi, Sarath   +5 more
core   +1 more source

Catalytic Oxidation of Naphthalene and Polycyclic Arenes by Iron(III) TAML/H2O2 in Water Aiming at Their Efficient Removal from Aqua Natural Systems

Chemistry – A European Journal, EarlyView.
Fe‐TAML in the presence of hydrogen peroxide efficiently catalyzes the oxidative degradation of naphthalene in aqueous medium of neutral pH. Products are identified and key mechanistic features are discussed. Abstract The electron transfer from naphthalene at an oxidized iron TAML species (TAML = tetraamido macrocyclic ligand) is a key step of its ...
Parameswar Pal, Chimezie Anyakora, Alexander D. Ryabov, Terrence J. Collins   +3 more
wiley   +1 more source

Balanço de carboidratos em gemas florais de dois genótipos de pereira sob condição de inverno ameno Balance of carbohydrates in flower bud of two pear tree genotypes under mild winter conditions

Revista Brasileira de Fruticultura, 2006
As pereiras européias e asiáticas, cultivadas sob condições de inverno ameno, como na região Sul do Brasil, apresentam problemas de adaptação. Durante o inverno, as oscilações térmicas e o baixo acúmulo de frio têm sido referidos por alguns autores como ...
Alexandre Couto Rodrigues, Flávio Gilberto Herter, Valtair Veríssimo, Ângela Diniz Campos, Gabriel Berenhauser Leite, João Baptista da Silva   +5 more
doaj   +1 more source

Ecofriendly Synthesis in Aqueous Medium: An Expeditious Approach to New N,N-Diethyl Amide Bearing Benzenemethanesulfonamides [PDF]

, 2013
An highly expeditious synthetic approach for the synthesis of benzenemethanesulfonamides (1a-k) and their new corresponding N,N-diethyl substituted amido moieties (2a-k) has been achieved in aqueous medium at room tem-perature. The reaction condition was
Ajani, O. O., Echeme, J. O., Familoni, O. B., Wu, F.   +3 more
core   +1 more source

Enhanced Reactivity of N‐heterocyclic Halophosphines and Phosphenium Cations: The Activation of Carbon─Heteroatom and Boron─Heteroatom Bonds

Chemistry – A European Journal, EarlyView.
Novel class of saturated NHPs with phosphoramidothioate substituents exhibit enhanced reactivity in photoinitiated transfer hydrogenation reactions and activate C─O, B─H, B─C, and B─F bonds via phosphenium cation formation. Abstract N‐heterocyclic phosphines (NHPs), and especially their ionic derivatives, phosphenium cations, have gained significant ...
Maksim A. Samsonov, Jan Vrána, Petr Švec, Vlastimil Němec, Eliška Procházková, Josef Cvačka, Aleš Růžička   +6 more
wiley   +1 more source