Results 61 to 70 of about 73,946 (166)

Spectrophotometric study of the protonation processes of some indole derivatives in sulfuric acid

Journal of the Serbian Chemical Society, 1999
The protonation of 3-methylindole, D-tryptophan, 3-formylindole, 3-acetylindole and indolyl-2-carboxylic acid in sulfuric acid media was studied by UV spectro-scopy.
GORAN M. STOJKOVIC, BLAGOJA S. ANDONOVSKI   +1 more
doaj  

Mathematical Modeling of a Cs(I) – Sr(II) – Bentonite – Magnetite Sorption System, Simulating the Processes Taking Place in a Deep Geological Repository

Acta Polytechnica, 2005
The derivation of mathematical models of systems consisting of Cs(I) or Sr(II) and of bentonite (B), magnetite (M) or their mixtures (B+M) are described.
H. Filipská, K. Štamberg
doaj  

Redefining proton affinity for heteronuclear molecular species: quantum chemical insights

Discover Chemistry
One of the main problems with experimental methods for detecting proton affinity (PA) is that they cannot perform site-specific protonation. For heteronuclear molecular species that have two or more protonation sites, the experimental PA measurement only
E. E. Etim, J. P. Shinggu, H. S. Samuel, B. Bako, D. K. Sahoo, L. Mweene, S. Kaya   +6 more
doaj   +1 more source

A theoretical study of alkane protonation in HF/SbF5 superacid system

Journal of the Brazilian Chemical Society, 2000
Ab initio calculations for the protonation of the C-H and C-C bonds of methane, ethane, propane and isobutane by a superacid moiety was carried out. For the C-H protonation (H/H exchange) the transition state resembles an H-carbonium ion coordinated with
Esteves Pierre M., Ramírez-Solís Alejandro, Mota Claudio J. A.   +2 more
doaj  

Mesons Produced in Proton-Proton Collisions [PDF]

Physical Review, 1950
openaire   +6 more sources

Polyfunctional Ligand of the Clinical Setting: Thermodynamic Studies of the Equilibria of Tranexamic Acid in Aqueous Solutions. [PDF]

ACS Omega
Bretti C, Cigala RM, De Stefano C, Crea F.   +3 more
europepmc   +1 more source

Redox- and protonation-driven Baird and Clar aromaticity in asymmetric multicyclic octaphyrins. [PDF]

Chem Sci
Ali MA, Kim JH, Kim Y, Nam Y, Oh J, Jang WD, Kim D.   +6 more
europepmc   +1 more source

Implementation and Validation of Titratable Cysteine in GROMACS-Based Constant-pH Molecular Dynamics. [PDF]

J Chem Theory Comput
Capelli R.
europepmc   +1 more source

Fatigue-Resistant Dithienylarene Photoswitches with Acid-Regulated Thermal Ring Opening. [PDF]

ACS Omega
Kunfi A, Zsignár-Nagy B, Perumalla DS, Durbeej B, London G.   +4 more
europepmc   +1 more source

Aza[6]- and Aza[7]helicenes: Synthesis and Reversible Protonation-Induced Tuning of Photophysical and Chiroptical Properties. [PDF]

JACS Au
Schumann FR, Philippe C, Weisenburger P, Crassous J, Podlech J.   +4 more
europepmc   +1 more source