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Поведение никеля(II) в водных растворах глицерина по данным протонной магнитной релаксации и рН-потенциометрии

Поведение никеля(II) в водных растворах глицерина по данным протонной магнитной релаксации и рН-потенциометрии

Abstract

NiH 2Glr] +, [NiHGlr], [Ni 2Glr] +, [Ni(H 2Glr)(H 3Glr)] +, [Ni 4(HGlr) 3(H 2Glr)]NO 3. Определены стехиометрия и константы соответствующих равновесий.The equilibria of complex formation between Ni(II) and glycerol in a wide range of рН have been studied by nuclear magnetic relaxation, pH-potentiometry, and mathematical modelling. The self-association of glycerol (H 3Glr) 2 and the formation of outer-sphere complexes {[Ni aq]H 3Glr} 2+ and {[Ni aq](H 3Glr) 2} 2+ as well as mono- and polynuclear glycerates [NiH 2Glr] +, [NiHGlr], [Ni 2Glr] +, [Ni(H 2Glr)(H 3Glr)] + and [Ni 4(HGlr) 3(H 2Glr)]NO 3 have been observed. The stoichiometry and equilibrium constants have been calculated.

Методами ядерной магнитной релаксации и рН-потенциометрии в сочетании с методом математического моделирования описаны равновесия комплексообразования никеля(II) с глицерином в широком диапазоне рН. Выявлена самоассоциация глицерина (H 3Glr) 2, образование внешнесферных комплексных форм {[Ni aq]H 3Glr} 2+ и {[Ni aq](H 3Glr) 2} 2+, а также моно- и полиядерных глицератов состава: [

Keywords

ГЛИЦЕРИН, НИКЕЛЬ, ВОДНЫЙ РАСТВОР, КОНСТАНТЫ РАВНОВЕСИЙ, САМОАССОЦИАЦИЯ, КОМПЛЕКСООБРАЗОВАНИЕ, РН-ПОТЕНЦИОМЕТРИЯ, ЯДЕРНАЯ МАГНИТНАЯ РЕЛАКСАЦИЯ, МАТЕМАТИЧЕСКОЕ МОДЕЛИРОВАНИЕ

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold