Penta-glycine copper(II) complexes in slightly alkaline solutions

Zeev Gaisin; Gary Gellerman; Dan Meyerstein

doi:10.1016/j.ica.2016.05.055

Penta-glycine copper(II) complexes in slightly alkaline solutions

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Abstract

The kinetics of the reaction of Cu^II(GGG), Cu^II(GGGGG) and Cu^II(GGGGS), where G = glycine and S = sarcosine, with 4-nitrophenyl-acetate were measured. The results point out that at pH 9.0 hydroxide is an axial, or equatorial ligand to a significant amount of these complexes. The source of the different mechanisms of reaction of the analogous nickel complexes is attributed to the axial water ligand of the copper complexes. The biological implications of axial hydroxide binding to copper peptides is discussed.

Original language	English
Pages (from-to)	211-215
Number of pages	5
Journal	Inorganica Chimica Acta
Volume	450
DOIs	https://doi.org/10.1016/j.ica.2016.05.055
State	Published - 24 Aug 2016

Keywords

Copper peptide structures
Hydroxide as an axial ligand
Kinetics
Penta-coordinated copper

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title = "Penta-glycine copper(II) complexes in slightly alkaline solutions",

abstract = "The kinetics of the reaction of CuII(GGG), CuII(GGGGG) and CuII(GGGGS), where G = glycine and S = sarcosine, with 4-nitrophenyl-acetate were measured. The results point out that at pH 9.0 hydroxide is an axial, or equatorial ligand to a significant amount of these complexes. The source of the different mechanisms of reaction of the analogous nickel complexes is attributed to the axial water ligand of the copper complexes. The biological implications of axial hydroxide binding to copper peptides is discussed.",

keywords = "Copper peptide structures, Hydroxide as an axial ligand, Kinetics, Penta-coordinated copper",

author = "Zeev Gaisin and Gary Gellerman and Dan Meyerstein",

year = "2016",

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T1 - Penta-glycine copper(II) complexes in slightly alkaline solutions

AU - Gaisin, Zeev

AU - Gellerman, Gary

AU - Meyerstein, Dan

PY - 2016/8/24

Y1 - 2016/8/24

N2 - The kinetics of the reaction of CuII(GGG), CuII(GGGGG) and CuII(GGGGS), where G = glycine and S = sarcosine, with 4-nitrophenyl-acetate were measured. The results point out that at pH 9.0 hydroxide is an axial, or equatorial ligand to a significant amount of these complexes. The source of the different mechanisms of reaction of the analogous nickel complexes is attributed to the axial water ligand of the copper complexes. The biological implications of axial hydroxide binding to copper peptides is discussed.

AB - The kinetics of the reaction of CuII(GGG), CuII(GGGGG) and CuII(GGGGS), where G = glycine and S = sarcosine, with 4-nitrophenyl-acetate were measured. The results point out that at pH 9.0 hydroxide is an axial, or equatorial ligand to a significant amount of these complexes. The source of the different mechanisms of reaction of the analogous nickel complexes is attributed to the axial water ligand of the copper complexes. The biological implications of axial hydroxide binding to copper peptides is discussed.

KW - Copper peptide structures

KW - Hydroxide as an axial ligand

KW - Kinetics

KW - Penta-coordinated copper

UR - https://www.scopus.com/pages/publications/84974633269

U2 - 10.1016/j.ica.2016.05.055

DO - 10.1016/j.ica.2016.05.055

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AN - SCOPUS:84974633269

SN - 0020-1693

VL - 450

SP - 211

EP - 215

JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

ER -

Penta-glycine copper(II) complexes in slightly alkaline solutions

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Keywords

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