Oxygen-17 and proton nuclear magnetic resonance studies on acetic acid exchange processes of the chloride, nitrate, and acetate of nickel(II) in acetic acid
Journal Article
·
· J. Phys. Chem.; (United States)
The exchange rates of acetic acid coordinating to nickel(II) chloride, nickel(II) nitrate, and nickel(II) acetate in neat acetic acid and acetic acid/dichloromethane-d2 mixtures were measured by the oxygen-17 and proton NMR line-broadening methods. The activation parameters for the acetic acid exchange on these nickel(II) salts were independent of the concentration of acetic acid (HOAc) in the mixed solvents. The first-order rate constants at 25C and the activation parameters are k = (5.5 +/- 0.2) x 10V s , H = 41 +/- 2 kJ mol , and S = 3 +/- 7 J mol K for NiCl2, k = (3 +/- 1) x 10V s , H = 37 +/- 5 kJ mol , and element of = -18 +/- 20 J mol K for Ni(NO3)2, and k = (3 +/- 1) x 10V s , H = 50 +/- 5 kJ mol , and S = 28 +/- 20 J mol K for Ni(OAc)2. Solvent exchange was proposed to proceed via a dissociative-interchange mechanisms. 34 references, 5 figures, 1 table
- Research Organization:
- Nagoya Univ., Japan
- OSTI ID:
- 6344362
- Journal Information:
- J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 89:23; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ACETATES
ACETIC ACID
CARBOXYLIC ACID SALTS
CARBOXYLIC ACIDS
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
DATA
ELEMENTS
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
HALIDES
HALOGEN COMPOUNDS
HYDROGEN
INFORMATION
ISOTOPES
LIGHT NUCLEI
MAGNETIC RESONANCE
MONOCARBOXYLIC ACIDS
NICKEL CHLORIDES
NICKEL COMPOUNDS
NICKEL NITRATES
NITRATES
NITROGEN COMPOUNDS
NMR SPECTRA
NONMETALS
NUCLEAR MAGNETIC RESONANCE
NUCLEI
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXYGEN 17
OXYGEN COMPOUNDS
OXYGEN ISOTOPES
RESONANCE
SPECTRA
STABLE ISOTOPES
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ACETATES
ACETIC ACID
CARBOXYLIC ACID SALTS
CARBOXYLIC ACIDS
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
DATA
ELEMENTS
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
HALIDES
HALOGEN COMPOUNDS
HYDROGEN
INFORMATION
ISOTOPES
LIGHT NUCLEI
MAGNETIC RESONANCE
MONOCARBOXYLIC ACIDS
NICKEL CHLORIDES
NICKEL COMPOUNDS
NICKEL NITRATES
NITRATES
NITROGEN COMPOUNDS
NMR SPECTRA
NONMETALS
NUCLEAR MAGNETIC RESONANCE
NUCLEI
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXYGEN 17
OXYGEN COMPOUNDS
OXYGEN ISOTOPES
RESONANCE
SPECTRA
STABLE ISOTOPES
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS