Influence of the distance between ionizable groups on the protonation behavior of various hexaamines
Literature Information
A synthesis route for N,N,N′,N′-tetraaminoethyl-1,2-ethylenediamine, N,N,N′,N′-tetraaminopropyl-1,2-ethylenediamine, N,N,N′,N′-tetraaminopropyl-1,3-propylenediamine and N,N,N′,N′-tetraaminopropyl-1,4-butylenediamine is presented. These molecules differ from each other in the number of carbon atoms between the six amino groups. This results in different protonation behavior. Potentiometric titrations are performed in 0.1 M and 1.0 M KCl, and the six macroscopic protonation constants are obtained from these curves. An Ising model with a limited number of microscopic protonation constants and short-ranged pair interactions describes the protonation behavior quantitatively. The results are compared to those of other, similar molecules. The advantage of the Ising model over empirical relations such as the Taft equations is the more systematic approach with which the titration curves of more complex molecules can be described. The values for the Ising model parameters obtained here can be used to predict the protonation behavior of more complex, in particular larger, polyamines.
Related Literature
In situXRD studies of nanocrystallization of Fe-based metallic glass: a comparative study by reciprocal and direct space methods
Jozef Bednarcik, Stefan Michalik, Vladimir Kolesar, Uta Rütt, Hermann Franz
DOI: 10.1039/C3CP44445G
Adsorption of N/S heterocycles in the flexible metal–organic framework MIL-53(FeIII) studied by in situ energy dispersive X-ray diffraction
Ben Van de Voorde, Alexis S. Munn, Nathalie Guillou, Franck Millange, Dirk E. De Vos, Richard I. Walton
DOI: 10.1039/C3CP44349C
On the dual emission of p-dimethylaminobenzonitrile and its photophysical implications
Javier Catalán
DOI: 10.1039/C3CP44627A
Nonlinear length dependent electrical resistance of a single crystal zinc oxide micro/nanobelt
Chaolong Tang, Chengming Jiang, Wenqiang Lu, Jinhui Song
DOI: 10.1039/C3CP50679G
From solvated ions to ion-pairing: a THz study of lanthanum(iii) hydration
Vinay Sharma, Fabian Böhm, Michael Seitz, Gerhard Schwaab, Martina Havenith
DOI: 10.1039/C3CP50865J
Adsorption and diffusion in thin films of nanoporous metal–organic frameworks: ferrocene in SURMOF Cu2(ndc)2(dabco)
DOI: 10.1039/C3CP50578B
Tandem cathode for proton exchange membrane fuel cells
Samira Siahrostami, Mårten E. Björketun, Peter Strasser, Jeff Greeley, Jan Rossmeisl
DOI: 10.1039/C3CP51479J
An all-cotton-derived, arbitrarily foldable, high-rate, electrochemical supercapacitor
Jiangli Xue, Yang Zhao, Huhu Cheng, Chuangang Hu, Yue Hu, Yuning Meng, Huibo Shao, Zhipan Zhang, Liangti Qu
DOI: 10.1039/C3CP51571K
Model of the photoexcitation processes of a two-level molecule coherently coupled to an optical antenna
Masatoshi Nakatani, Atsushi Nobuhiro, Nobuhiko Yokoshi, Hajime Ishihara
DOI: 10.1039/C3CP43834A
Photoinduced electron transfer of platinum(ii) bipyridine diacetylides linked by triphenylamine- and naphthaleneimide-derivatives and their application to photoelectric conversion systems
Yuma Matsumoto, Mai Tsubamoto, Ryoji Sugimura, Masatoshi Kozaki, Kenshi Kimoto, Munetaka Iwamura, Koichi Nozaki, Naoki Senju, Chiasa Uragami, Yohei Muramatsu, Akinori Konno
DOI: 10.1039/C3CP50182E
You might also like
How should waste containing (6-Bromo-2-naphthyl)oxy](dimethyl)(2-methyl-2-propanyl)silane be handled?
Waste containing (6-Bromo-2-naphthyl)oxy](dimethyl)(2-methyl-2-propanyl)silane (...
How is 7-Fluoro-4-isoquinolinecarboxylic acid (CAS: 1841081-40-0) typically synthesized?
7-Fluoro-4-isoquinolinecarboxylic acid can be synthesized via a multi-step proce...
What are the physical and chemical properties of 2,3,5,6-Tetrabromothieno[3,2-b]thiophene (CAS: 124638-53-5)?
2,3,5,6-Tetrabromothieno[3,2-b]thiophene is a crystalline compound with a high m...
Is 1-[4-(Benzylamino)-7,8-dihydro-5H-pyrano[4,3-d]pyrimidin-2-yl]-2-methyl-1H-indole-4-carboxamide (CAS: 1542705-92-9) safe?
1-[4-(Benzylamino)-7,8-dihydro-5H-pyrano[4,3-d]pyrimidin-2-yl]-2-methyl-1H-indol...
What is the market or research trend for imidazo[5,1-d]-1,2,3,5-tetrazine-8-carboxylic acid, 3,4-dihydro-3-methyl-4-oxo- (CAS: 113942-30-6)?
The market for imidazo[5,1-d]-1,2,3,5-tetrazine-8-carboxylic acid, 3,4-dihydro-3...
What is 3-(Triisopropylsilyl)propiolaldehyde (CAS: 163271-80-5)?
3-(Triisopropylsilyl)propiolaldehyde is a synthetic organic compound with the CA...
What regulatory guidelines apply to 6-Nitro-2H-1,4-benzoxazin-3(4H)-one (CAS: 81721-87-1)?
6-Nitro-2H-1,4-benzoxazin-3(4H)-one (CAS: 81721-87-1) is subject to various regu...
How should waste containing (3-Fluorophenyl)(4-{[(2-methyl-2-propanyl)oxy]carbonyl}-1-piperazinyl)acetic acid (CAS: 885272-91-3) be handled?
Waste containing (3-Fluorophenyl)(4-{[(2-methyl-2-propanyl)oxy]carbonyl}-1-piper...
What are the physical and chemical properties of N,N'-4,4'-Biphenyldiyldiisonicotinamide (CAS: 55119-40-9)?
N,N'-4,4'-Biphenyldiyldiisonicotinamide is a white crystalline solid with a mole...
What industries use 6-Bromo-8-fluoro-2-quinazolinol (CAS: 1036756-15-6)?
6-Bromo-8-fluoro-2-quinazolinol is primarily used in the pharmaceutical industry...
Source Journal
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.













![N-[(E)-Phenylmethylene]benzenesulfonamide structure N-[(E)-Phenylmethylene]benzenesulfonamide structure](https://static.chemtradehub.com/structs/139/13909-34-7-8167.webp)
