Results 51 to 60 of about 837,919 (319)
Beilstein Journal of Organic Chemistry, 2013 Activation of the C–F bond of benzylic fluorides was achieved using 1,1,1-tris(hydroxymethyl)propane (2) as a hydrogen bond-donating agent. Investigations demonstrated that hydrogen bond-donating solvents are promoting the activation and hydrogen bond ...
Pier Alexandre Champagne +3 more
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l-Alanine hydrochloride monohydrate
Acta Crystallographica Section E, 2008 Colorless crystals of l-alanine hydrochloride monohydrate, C3H8NO2+·Cl−·H2O, were obtained from a powder sample that had been left standing in a refrigerator for a few years.
Shigeyuki Yokoyama +4 more
doaj +1 more source
, 1972 Bonding theories reviewed include physical adsorption, hydrogen bonding, chemisorption and surface energy; bond failure mechanisms include phase discontinuity, swelling and corrosion.
Delollis, N. J.
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Raman Spectroscopic and SEM Analysis of Sodium-Zippeite [PDF]
, 2007 Raman at 298 and 77 K and infrared spectra of two samples of sodium-zippeite were studied and interpreted. U-O bond lengths in uranyl were calculated and compared with those inferred from the X-ray single crystal structure data of a synthetic sodium ...
Anderson +43 more
core +2 more sources
Microbial exopolysaccharide production by polyextremophiles in the adaptation to multiple extremes
FEBS Letters, EarlyView.Polyextremophiles are microorganisms that endure multiple extreme conditions by various adaptation strategies that also include the production of exopolysaccharides (EPSs). This review provides an integrated perspective on EPS biosynthesis, function, and regulation in these organisms, emphasizing their critical role in survival and highlighting their ...
Tracey M Gloster, Ebru Toksoy Öner
wiley +1 more source
2-[(Pyridin-3-ylamino)methyl]phenol
Acta Crystallographica Section E, 2011 In the title compound, C12H12N2O, the aromatic rings at either ends of the –CH2–NH– link are twisted by 68.79 (7)°.
Jing Xu, Shan Gao, Seik Weng Ng
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Golden sections of inter-atomic distances as exact ionic radii of atoms [PDF]
, 2009 The Golden ratio which appears in the geometry of a variety of creations in Nature is found to arise right in the Bohr radius of the hydrogen atom due to the opposite charges of the electron and proton.
Raji Heyrovska
core +1 more source
A nucleotide‐independent, pan‐RAS‐targeted DARPin elicits anti‐tumor activity in a multimodal manner
Molecular Oncology, EarlyView.We report a Designed Ankyrin Repeat Protein that binds and inhibits RAS proteins, which serve as central cell signaling hubs and are essential for the progression of many cancers. Its unique feature is that it does not discriminate between different RAS isoforms or mutations and is capable of binding to RAS in both its active (GTP‐bound) and inactive ...
Jonas N. Kapp +13 more
wiley +1 more source
Quantifying hydrogen bonding using electrically tunable nanoconfined water
Nature CommunicationsHydrogen bonding plays a crucial role in biology and technology, yet it remains poorly understood and quantified despite its fundamental importance. Traditional models, which describe hydrogen bonds as electrostatic interactions between electropositive ...
Ziwei Wang +13 more
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Effect of the Hydration Shell on the Carbonyl Vibration in the Ala-Leu-Ala-Leu Peptide
Molecules, 2021 The vibrational spectrum of the Ala-Leu-Ala-Leu peptide in solution, computed from first-principles simulations, shows a prominent band in the amide I region that is assigned to stretching of carbonyl groups.
Irtaza Hassan +2 more
doaj +1 more source