Results 71 to 80 of about 2,475,342 (218)
Beyond the Oxo‐Wall: Synthesis and Reactivity of a Six‐Coordinate Formally CoIV‐Oxo Complex
Angewandte Chemie, Volume 138, Issue 41, 5 October 2026.We present the first example of a six‐coordinate formally Co(IV)‐oxo complex, [Co(TQA)(O)(OH)]+ (1), which exists as an admixture of CoIV‐oxo and CoIII‐oxyl resonance structures. Complex 1 is capable of performing oxygen atom transfer reactions and abstracting moderately strong hydrogen atoms at rates faster than other characterized CoIV‐oxo compounds.
Jason Shearer +6 more
wiley +2 more sources
The Sulfur Plume in the Horsehead Nebula: New Detections of S2H, SH+, and CO+
The Astrophysical Journal LettersSulfur is essential for life, but its abundance and distribution in the interstellar medium remain uncertain, with over 90% of sulfur undetected in cold molecular clouds.
A. Fuente +15 more
doaj +1 more source
Keeping It Native: Non‐Denaturing Approaches to Top‐Down Protein Mass Spectrometry
Mass Spectrometry Reviews, EarlyView.ABSTRACT Top‐down proteomics and top‐down mass spectrometry approaches provide direct characterization of proteoforms; the specific molecular forms of proteins, including post‐translational modifications, truncations, alternative splicing, and sequence variants.
Michael Xiao +3 more
wiley +1 more source
Absorption spectra and photodissociation of some inorganic molecules
, 1936 The absorption spectra of PCl3, PBr3, PCl5, PBr5, POCl3, P2O5, AsCl3, SbCl3, SbOCl, and BiCl3, are investigated. The regions of selective absorption are correlated to certain photodissociation processes.
Jan-Khan, M., Samuel, R.
core +1 more source
NeuralPDR: neural differential equations as surrogate models for photodissociation regions
Machine Learning: Science and TechnologyComputational astrochemical models are essential for helping us interpret and understand the observations of different astrophysical environments. In the age of high-resolution telescopes such as JWST and ALMA, the substructure of many objects can be ...
Gijs Vermariën +5 more
doaj +1 more source
Scaling turbulence drives the general circulation
Quarterly Journal of the Royal Meteorological Society, EarlyView.The NOAA Gulfstream SP4, which deployed the GPS dropsondes over the NE Pacific Ocean as part of the Winter Storms Project during the January–March periods of 2004, 2005 and 2006. Abstract Statistical multifractal analysis of airborne and dropsonde observations is used to show that persistence of velocity after molecular collisions breaks the continuous
Adrian F. Tuck
wiley +1 more source
Low-density photodissociation regions
The Astrophysical Journal, 1991 A theoretical parameter study of the temperature and chemical structure of photodissociation regions (PDRs) and their resultant spectrum is presented. The models, which solve for the chemical and thermal steady state of a one-dimensional slab exposed to an incident FUV flux, relate the observed line and continuum emission from these regions to physical
David J. Hollenbach +2 more
openaire +1 more source
Nonequilibrium Photodissociation Regions: Ionization-Dissociation Fronts [PDF]
The Astrophysical Journal, 1996 Ap. J., in press 31 pages with 8 figures: uuencoded compressed postscript.
Bertoldi, Frank, Draine, B. T.
openaire +2 more sources
The Astrophysical JournalWe investigate the emergence phase of young star clusters in the nearby spiral galaxy NGC 628. We use JWST NIRCam and MIRI observations to create spatially resolved maps of the Pa α 1.87 μ m and Br α 4.05 μ m hydrogen recombination lines, as well as 3.3 ...
Alex Pedrini +23 more
doaj +1 more source
Microsecond time-resolved absorption spectroscopy used to study CO compounds of cytochrome bd from Escherichia coli. [PDF]
PLoS ONE, 2014 Cytochrome bd is a tri-heme (b558, b595, d) respiratory oxygen reductase that is found in many bacteria including pathogenic species. It couples the electron transfer from quinol to O2 with generation of an electrochemical proton gradient.
Sergey A Siletsky +3 more
doaj +1 more source