Results 91 to 100 of about 438,427 (238)
Anaerobic degradation of polycyclic aromatic hydrocarbons
Applied and Environmental MicrobiologyPolycyclic aromatic hydrocarbons (PAHs) are ubiquitous and toxic pollutants in the environment that are mostly introduced through anthropogenic activities.
Isabelle Heker +3 more
doaj +1 more source
Catalyst‐Free Selective Reduction of Nitrogen Dioxide to Nitric Oxide
Chemistry – A European Journal, EarlyView.Common main group reductants selectively convert nitrogen dioxide to nitric oxide in a catalyst‐free manner. Computational studies suggest divergent reaction pathways depending on the reductant employed. Where boranes and silanes proceed via a two‐electron process, and hydrogen surrogates undergo stepwise one‐electron processes.
Awais W. Seyyad +3 more
wiley +1 more source
Chemistry – A European Journal, EarlyView.Nitrooxylation—the installation of nitrate esters (–ONO2) has evolved from classical mixed‐acid protocols to catalytic and mechano‐, flow‐, photo‐, and electrochemical strategies. This review delineates ionic and radical manifolds for C–ONO2 bond formation, emphasizing mechanistic control, selected substrate scope, and selectivity.
Jayanta Dey, Dmitry Katayev
wiley +1 more source
Chemistry – A European Journal, EarlyView.We demonstrate the power of high‐resolution infrared spectroscopy and complementary quantum chemical calculations to unravel the evolution of the aromatic charge resonance interaction (CR) in cold trimer radical cations for the prototypical pyrrole clusters.
Dashjargal Arildii, Otto Dopfer
wiley +1 more source
Chemistry – A European Journal, EarlyView.Surface‐bound ferulate phenolate complexes undergo styrene‐like polymerization on alumina, yielding a polymeric carbonaceous layer that progressively transforms into polyaromatic carbon domains with concomitant release of aromatic products, while parallel surface‐assisted decarboxylation produces 4‐vinylguaiacol. ABSTRACT A fundamental understanding of
Tetiana V. Kulik +11 more
wiley +1 more source
Avaliação da concentração de compostos mono e policíclicos aromáticos dos processos de conversão térmica de lodo sanitário para uso como fonte alternativa de energia [PDF]
, 2015 Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Química, Florianópolis, 2015.Atualmente, o tratamento de águas residuárias, através das estações de tratamento de efluentes, gera lodos
Susin, Renato Cesar
core
Chemistry – A European Journal, EarlyView.Reactions of 10‐mesityl‐1,8‐diphenylanthracene with DDQ/TfOH produced three products via sequential formation of a five‐ or seven‐membered ring. Unexpectedly, the triply cyclized product with a rubicene substructure was formed through cyclization involving 1,2‐methyl shift.
Tatsuhiro Sasaki +2 more
wiley +1 more source
Bulletin of the Chemical Society of Ethiopia, 2010 The impact of sunlight on aliphatic and polycyclic aromatic hydrocarbons profiles of Agbabu natural bitumen in Nigeria was investigated. The raw flow type of the bitumen was purified and exposed to sunlight for six consecutive months.
O.M. Olabemiwo +3 more
doaj
Bacterioneuston da Ria de Aveiro: abundância, actividade e degradação de hidrocarbonetos aromáticos policíclicos [PDF]
, 2008 Mestrado em MicrobiologiaA microcamada superficial marinha (sea surface microlayer - SML) situa-se na interface entre a hidrosfera e a atmosfera. Esta camada é geralmente definida como o milímetro superior da coluna de água e representa um ambiente ...
Coelho, Francisco José Riso da Costa
core
Chemistry – A European Journal, EarlyView.We report a systematic study of β‐ketonitrile–modified Prodan‐type solvatochromic fluorophores. The β‐ketonitrile substitution induces marked bathochromic shifts in absorption and emission and significantly enhances fluorescence quantum yields in nonpolar solvents.
Hiroaki Asakawa +3 more
wiley +1 more source