Results 31 to 40 of about 3,261,533 (299)
pH-Mediated Regulation of Polymer Transport Through SiN Pores [PDF]
, 2018 We characterize the pH controlled polymer capture and transport thorough silicon nitride (SiN) pores subject to protonation. A charge regulation model able to reproduce the experimental zeta potential of SiN pores is coupled with electrohydrodynamic ...
Ala-Nissila, Tapio, Buyukdagli, Sahin
core +2 more sources
Resolution of Microscopic Protonation Mechanisms in Polyprotic Molecules
CHIMIA, 2002 Microscopic ionization equilibria can be fully resolved by means of a novel site-binding model, which is based on a cluster expansion technique borrowed from statistical mechanics. This model permits a parameterization of the problem, and offers
Michal Borkovec +3 more
doaj +1 more source
Sterically restricted tin phosphines, stabilized by weak intramolecular donor-acceptor interactions [PDF]
, 2014 Funding: Engineering and Physical Sciences Research Council (EPSRC)Four related sterically restricted pen-substituted acenaphthenes have been prepared containing mixed tin phosphorus moieties in the proximal 5,6-positions (Acenap[SnR3][(PPr2)-Pr-i ...
Arachchige, Kasun S. Athukorala +9 more
core +4 more sources
Acidity Constants of the Hematite-Liquid Water Interface from Ab Initio Molecular Dynamics.
Journal of Physical Chemistry Letters, 2018 The interface between transition metal oxides (TMO) and liquid water plays a crucial role in environmental chemistry, catalysis, and energy science. Yet, the mechanism and energetics of chemical transformations at solvated TMO surfaces is often unclear ...
Oliver R Gittus +3 more
semanticscholar +1 more source
MATEC Web of Conferences, 2013 Ten compounds hydroxybases Schiff were synthesized from salicylaldehyde and the substituted aniline in the ortho, meta and para methyl groups, chloro and nitro.
Hadjeb R., Bara A., Barkat D.
doaj +1 more source
Interactions of some metal ions with Nitrogenous bases present in Nucleotides
مجلة بغداد للعلوم, 2007 Acidity constants at 30co and 0.125 ionic strength have been determined for the Nitrogous bases of nucleic acid; cytocine, uarcil and thymine, and found to be 3.55 x10-19 , 1.44 x10 -19 and 7.24 x10 -20 respectively.
Baghdad Science Journal
doaj +1 more source
Deprotonation of salicylic acid and 5-nitrosalicylic acid in aqueous solutions of ethanol [PDF]
Journal of the Serbian Chemical Society, 2011 The protonation constant values of two hydroxybenzoic acids (salicylic and 5-nitrosalicylic acid) were studied in some water-ethanol solutions using spectrophotometric and potentiometric methods at 25°C and in an ionic strength of 0.1 M sodium ...
Faraji Mohammad +3 more
doaj +1 more source
Indonesian Journal of Chemistry, 2021 In this study, the complex of difluoroboron, curcumin (BF2-Cur), has been synthesized and characterized via the combination of Boron trifluoride-diethyl etherate ((C2H5)2OBF3) and curcumin.
Nguyen Quoc Thang +5 more
doaj +1 more source
Polyprotic Acids and Beyond—An Algebraic Approach
Chemistry, 2021 For an N-protic acid–base system, the set of nonlinear equations (i.e., mass action and balance laws) provides a simple analytical solution/formula for any integer N ≥ 1.
Harald Kalka
doaj +1 more source
Chemical properties of bile acids. IV. Acidity constants of glycine-conjugated bile acids.
Journal of Lipid Research, 1987 The dissociation constants for the carboxyl group of a series of glycine (N-acyl)-conjugated and unconjugated bile acids were determined by potentiometric titration using dimethylsulfoxide-water and methanol-water mixtures of varying proportions. The pKa
A Fini, A Roda
doaj +1 more source