ISSN:
0009-2940
Keywords:
Beryllium complexes
;
Catechol
;
Beryllium toxicity
;
NMR, 9Be
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Crystalline Na2[Be(o-C6H4O2)2] · 5 H2O was prepared from beryllium hydroxide and a strongly alkaline aqueous solution of catechol. In an X-ray structure determination the complex was shown to feature dianions [Be(o-C6H4O2)2]2- with two chelating catechol ligands. The 9Be-NMR spectrum of an aqueous solution of the compound shows a singlet at δ = 7.5. This signal is shifted considerably from the Beaq2+ reference and indicates persistence of the complexation of the metal ion by the catecholate ligands in alkaline aqueous solution. This result is important in the light of the ubiquitous availability of phenolic groups in many biomolecules, such as e.g. catecholamines.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19921251213
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