Results 81 to 90 of about 432,216 (161)
Chemistry – A European Journal, Volume 32, Issue 33, 1 September 2026.The polyoxo‐20‐molybdate(VI) wheel [MoVI20O60{AsO2(CH3)2}12]12− (Mo20) can be prepared with or without a central guest in a controlled, cation‐directed fashion. When Mo20 is dissolved in water, it exhibits an immediate, quantitative, and fully reversible solution transformation to a tetranuclear Mo4 cluster, which transforms in the solid state again to
Arun Pal +12 more
wiley +1 more source
Morita–Baylis–Hillman modifications on hydroformylated (R)-limonene
Royal Society Open ScienceWe report the sequential hydroformylation of (R)-limonene followed by Morita–Baylis–Hillman (MBH) coupling to give two new MBH adducts derived from methyl acrylate (adduct 1, 32% isolated yield) and acrylonitrile (adduct 2, 95% isolated yield).
José Ribeiro Gregório +3 more
doaj +1 more source
Magnetic Nanoparticles: Co@SiO2, Co@Au and Co@Pt
Eclética Química, 2018 Nanotechnology is the understanding and control f matter at dimensions of roughly 1 – 100 nm. At the nanoscale, the properties like electrical conductivity and mechanical strength are not the same as the materials with particles in dimensions much more ...
Vagner Sargentelli +1 more
doaj +1 more source
Role of the Bridge Length and Structure in Photoinduced Mixed‐Valence Systems
ChemPhotoChem, Volume 10, Issue 9, September 2026.A longer analog of the excited‐state Creutz–Taube ion displays, despite a donor–acceptor distance of 1 nm, substantial electronic coupling in the MLCT excited state, facilitated by bridging‐ligand planarization upon transient reduction. This results in a two‐order‐of‐magnitude extension of the MLCT lifetime to around 3 ns, despite a rather localized ...
Ivana Ramírez‐Wierzbicki +2 more
wiley +1 more source
Chemical Composition and Antibacterial Activity of the Essential Oils of (Asteraceae)
Natural Product Communications, 2006 The essential oils of Blainvellea rhomboidea (Asteraceae) were obtained by hydrodistillation and analyzed by GC/MS and GC/FID. Initially, the essential oil from the aerial parts was investigated.
Andreza Maria L. Pires +5 more
doaj +1 more source
Small, Volume 22, Issue 52, 16 September 2026.Electrostatic topology is shown to program phase separation and internal organization in thermoresponsive intrinsically disordered protein polymer (IDPP) condensates. By comparing oppositely charged IDPPs with a covalent diblock, chain connectivity is revealed to control charge compensation, dense‐phase micropolarity, miscibility, and apparent acid ...
Julio Fernández‐Fernández +6 more
wiley +1 more source
Programa 29 - Química Orgânica, Química Inorgânica e o universo da Química Industrial
, 2016 Veja com a Professora Nathalia Terra e o professor Hélio Bellintani questões de edições anteriores do Enem: uma sobre química orgânica e outra sobre química inorgânica. E aprenda sobre o dia a dia de um químico industrial com Cris Amorim, profissional da
Roquette Pinto
core
Journal of Animal Ecology, Volume 95, Issue 9, Page 1629-1641, September 2026.Our study shows that non‐native species alter the relationship between the size‐spectrum slope and the predator–prey mass ratio (PPMR) in freshwater fish communities by occupying distinct trophic niches. Abstract The size spectrum, which describes the relationship between abundance (or biomass) and body size, is an ataxic approach that can provide ...
Valentin Marin +3 more
wiley +1 more source
ELABORAÇÃO DE MATERIAIS DIDÁTICOS INTERATIVO PARA DICIPLINA DE QUÍMICA INORGÂNICA. [PDF]
Este trabalho tem como principal objetivo apresentar a elaboração de materiais didáticos interativos destinados ao ensino da disciplina de Química Inorgânica.
Bandiera, Luiz Gustavo +1 more
core +1 more source