Results 31 to 40 of about 3,134,594 (306)

Contextualizando reações ácido-base de acordo com a teoria protônica de Brönsted-Lowry usando comprimidos de propranolol e nimesulida

open access: yesQuímica Nova, 2013
This paper reports the use of alternative materials for teaching experimental chemistry. In this context, nimesulide and propranolol tablets were used to teach chemical concepts about acid-base reactions according to Brönsted-Lowry protonic Theory ...
Arlan de Assis Gonsalves   +3 more
doaj   +1 more source

Study of fragmentation dynamics for CO2q+ (q≤4) in strong laser fields

open access: yesHe jishu, 2022
BackgroundThe research of molecular fragmentation dynamics has attracted extensive attention in the fields of physics, chemistry and biology. The major challenge in this field is to understand the selectivity of molecular bond breaking and to elucidate ...
ZHANG Shuai   +4 more
doaj   +1 more source

Dissociation of cyclopropane in double ionization continuum [PDF]

open access: yes, 2017
Dissociative double photoionization of cyclopropane is studied in the inner-valence region using tunable synchrotron radiation. With the aid of ab initio quantum chemical calculations the energies of dication states and their favoured fragmentation ...
Anna Sankari   +30 more
core   +1 more source

Gas hydrate growth and dissociation in narrow pore networks: capillary inhibition and hysteresis phenomena [PDF]

open access: yes, 2009
Marine sediments hosting gas hydrates are commonly fine-grained (silts, muds, clays) with very narrow mean pore diameters (0.1 mm). This has led to speculation that capillary phenomena could play an important role in controlling hydrate distribution in
Webber, J. Beau W.   +5 more
core   +1 more source

Prediction of Dissociation Constant in Protein-Ligand Interaction [PDF]

open access: yes, 2021
In protein-ligand interactions, such as antigen-antibody interactions and hormone-receptor interactions, a correlation between the equilibrium dissociation constant KD and the reduced mass of the protein and ligand was found.
Masatoshi, Kawashima
core   +1 more source

On-surface light-induced generation of higher acenes and elucidation of their open-shell character

open access: yesNature Communications, 2019
The synthesis of large acenes via traditional solution-chemistry routes is hindered by their poor solubility and high reactivity under ambient conditions.
José I. Urgel   +11 more
doaj   +1 more source

Are the program packages for molecular structure calculations really black boxes? [PDF]

open access: yesJournal of the Serbian Chemical Society, 2007
In this communication it is shown that the widely held opinion that compact program packages for quantum-mechanical calculations of molecular structure can safely be used as black boxes is completely wrong.
Mraković Ana   +4 more
doaj   +3 more sources

AQUA AMMONIA ELECTROLYTIC CHARACTER AND TPP COOLANT CONDUCTOMETRIC QUALITY CONTROL UNDER HIGH TEMPERATURES AND PRESSURES

open access: yesAdvanced Engineering Research, 2013
To improve the operational conductometric steam quality control at the TPP, CHPP, and NPP, the technique for NaCl and NH4OH concentration in the saturated and superheated steam of the high- and supercritical pressure steam generators is developed, and a ...
Vladimir Nikolayevich Shcherbakov   +1 more
doaj   +1 more source

The role of salt bridges, charge density, and subunit flexibility in determining disassembly routes of protein complexes [PDF]

open access: yes, 2013
Mass spectrometry can be used to characterize multiprotein complexes, defining their subunit stoichiometry and composition following solution disruption and collision-induced dissociation (CID).
Hernández, Helena   +4 more
core   +1 more source

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