Allosteric effects in norbadione A.: A clue for the accumulation process of 137Cs in mushrooms?

被引：27

作者：

Garaudée, S

Elhabiri, M

Kalny, D

Robiolle, C

Trendel, JM

Hueber, R

Van Dorsselaer, A

Albrecht, P ^{[1
]}

Albrecht-Gary, AM

机构：

[1] Univ Strasbourg 1, Fac Chim, Lab Geochim Bioorgan, CNRS,UMR 7509, F-67000 Strasbourg, France

[2] Univ Strasbourg 1, Fac Chim, Lab Physicochim Bioinorgan, CNRS,UMR 7509, F-67000 Strasbourg, France

[3] ULP, ECPM, Lab Spectrometrie Masse Bioorgan, CNRS,UMR 7509, F-67200 Strasbourg, France

[4] ANDRA, F-92298 Chatenay Malabry, France

来源：

CHEMICAL COMMUNICATIONS | 2002年 / 09期

关键词：

D O I：

10.1039/b201929a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A fruitful combination of potentiometry, absorption spectrophotometry, ESMS and H-1 NMR enabled the characterisation of two caesium complexes with norbadione A and the determination of the respective stability constants of a mononuclear and a dinuclear caesium complex at pH similar to 6; a preliminary study allowed the assignment of five protonation sites of this pigment; a positively cooperative binding of the second Cs+ cation was observed.

引用

页码：944 / 945

页数：2

共 17 条

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