Results 81 to 90 of about 88,515 (283)
Em colmos de bambu da espécie tida como Guadua flabellata, determinaram-se os teores de amido e das frações fibrosa, parenquimatosa e solúvel em água. O comprimento e o diâmetro dos colmos processados foram também determinados. Os resultados mostraram que o teor médio de amido extraído foi 8,53% (base seca), representando cerca de 59% da fração solúvel
openaire +4 more sources
Combinatiorial method for surface-confined sensor desing and fabrication [PDF]
The procedure for the combinatorial fabrication of new sensing materials for cations and anions based on self-assembled monolayers (SAM) is discussed. A library of different sensitive substrates is generated by sequential deposition of fluorophores and ...
Basabe Desmonts, Lourdes+3 more
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We reported four‐coordinate cationic aluminum catalysts stabilized by hybrid N‐heterocyclic imine (HAmImR) ligands. These aluminum cations exhibit excellent stability while efficiently catalyzing guanidines formation from anilines and carbodiimides.
Ting‐Wei Chang+3 more
wiley +1 more source
Über einige Amido‐ und Amidooxydiphenylamine [PDF]
n ...
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Phosphido pincer complexes of platinum: synthesis, structure and reactivity [PDF]
A series of platinum(II) complexes supported by the tridentate bis(phosphine)phosphido ligand bis(2-diisopropylphosphinophenyl)phosphide) [iPr–PPP] have been synthesized and characterized (1–4).
Kühl, Olaf+3 more
core +2 more sources
The reductant/sensitizer/etc. individually shows only thermally‐induced current in photogalvanic cell. Only, complete electrolyte is able to show solar energy conversion. Use of complete electrolyte is a necessary condition for solar power generation through the photogalvanics.
Reetoo, Pooran Koli, Jyoti Saren
wiley +1 more source
Uso de Material Arqueológico no Estudo de Evolução de Plantas
Amostras arqueológicas de milho – Zea mays e mandioca – Manihot esculenta, do Vale do Peruaçu - MG, Brasil, com idades entre 1010 e 570 anos B.P., foram estudadas.
Fábio de Oliveira Freitas
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Chemical Switching Behaviour of Tricarbonylrhenium(I) Complexes of a New Redox Active ‘Pincer’ Ligand [PDF]
The structures and optoelectronic properties of tricarbonylrhenium(I) complexes of di(2-pyrazolyl-p-tolyl)amine in its neutral and deprotonated (uninegative amido) form were investigated.
Bennett, Brian+5 more
core +1 more source
Advances in Ligand‐Driven Pd‐Catalyzed C─H Functionalizations: Recent Insights and Updates
The most significant advances in ligand‐driven Pd‐catalyzed organic synthesis over the past two years are presented. Processes involving C─H activation of substrates, avoiding their prefunctionalization are illustrated. Both the activity and selectivity of the catalyst depend on the design of the ligands (pyridones, pyridines, amino acids, phosphines ...
Jesús Moradell+3 more
wiley +1 more source
The cultivation of oleaginous plants like the castor bean guarantees employment for agricultural families and can contribute in energy and chemical sectors, especially in the northeastern semi-arid regions of Brazil.
Denis Herisson da Silva+4 more
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