Results 61 to 70 of about 2,404 (97)
Chemistry – A European Journal, Volume 32, Issue 16, 25 April 2026.The mechanism of pacifigorgiadiene synthase from Burkholderia gladioli was investigated through isotopic labeling experiments and DFT calculations. The results revealed an unexpected labeling pattern which appeared to be different in the main and the side products, requiring unprecedented mechanistic explanations, including a “break‐flip‐cyclise ...
Zhiyong Yin +6 more
wiley +1 more source
Understanding the mechanism stabilizing intermediate spin states in Fe(II)-Porphyrin
, 2017 Spin fluctuations in Fe(II)-porphyrins are at the heart of heme-proteins functionality. Despite significant progress in porphyrin chemistry, the mechanisms that rule spin state stabilisation remain elusive.
Alavi, Ali, Manni, Giovanni Li
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Enzymatic Synthesis of Demethylated Sesquiterpenes From 14‐nor‐Farnesyl Pyrophosphate
European Journal of Organic Chemistry, Volume 29, Issue 14, 15 April 2026.The substrate analog 14‐nor‐FPP was synthesised and enzymatically converted with 10 bacterial and fungal sesquiterpene synthases, resulting in the isolation of 12 demethylated sesquiterpenes in yields up to 17%. In most cases the demethyl analogs of the FPP‐derived natural products were obtained, but also different products showing modified ...
Kizerbo A. Taizoumbe +1 more
wiley +1 more source
The crystal and molecular structure of 2,7-di-tert-butyl-4,5,9,10-tetraphenylbenzo[1,2,:4,5]dicyclobutadiene: an exceptionally long C–C aromatic bond [PDF]
, 1999 The X-ray determined structure of the title compound is reported; it was found that the annelated bonds are the longest observed in a benzene derivative [1.540(5) Å]; ab initio calculations (at the B3LYP/6-31G* and MP2/6-31G* levels of theory) were used ...
Amnon Stanger +6 more
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Impacts of Quinone Structure on Trade‐Offs Between Redox Potential and CO2 Binding Strength
ChemPhysChem, Volume 27, Issue 7, 14 April 2026.Quinones are well‐studied and promising candidates for redox‐active sorbents in electrochemical CO2 capture and storage (ECCS). Unfortunately, reactivity with O2 is a persisting issue in the use of quinones. While attempts have been made to tune the redox‐potentials of quinones to avoid this, quinones which are more tolerant to the presence of O2, are ...
Jack S. Taylor +2 more
wiley +1 more source
Synthesis, Structure, and Thin Film Optical Properties of a Chiral Benzothiazole‐Derived Squaraine
ChemPhysChem, Volume 27, Issue 7, 14 April 2026.Solution‐processed thin films can be sensitive to the choice of solvent and thermal annealing, which we explore for a chiral benzothiazole squaraine. We observe peculiarly shaped excitonic circular dichroism in uniaxially anisotropic thin films, in which the presumed Davydov bands are spatially distributed exclusively into in‐plane (UDC) and out‐of ...
Marvin F. Schumacher +4 more
wiley +1 more source
2,4,6-Trichlorophenyl-Substituted [3]Triangulene with Enhanced Stability
ChemistryTriangulene, also known as Clar’s hydrocarbon, has been sought after by chemists for more than 70 years but with limited success. Herein, we report an oxidative dehydrogenation method to synthesize two kinetically blocked [3]triangulene derivatives TRI-1
Yiming Yang +3 more
doaj +1 more source
Fluorescence for high school students [PDF]
, 2012 In a not obligatory series of lessons for high school students in the Netherlands we discuss the fluorescence aspects of anthracene. These lessons were developed because HiSPARC (High school Project on Astrophysics Research with Cosmics) detection of ...
Kool, Tom W., Schultheiss, Niek G.
core +2 more sources
QSPR analiza polarografskih poluvalnih redukcijskih potencijala benzenoidnih ugljikovodika [PDF]
, 2006 Correlation between the polarographic half-wave reduction potentials and the set of molecular descriptors of lower benzenoid hydrocarbons was made by the CROMRsel modeling procedure. The following descriptors were used in the modeling procedure: electron
Ante Miličević +2 more
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Chemists’ knowledge object. Formulation, modification and abandonment of iconic model [PDF]
, 2006 This article presents an analysis of different perspectives in regards to chemistry scientific statute. The category of scientific model was considered to characterize the proposal and development of technological-iconic model. It was necessary to have a
A.P. Gallego Torres +3 more
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