Preparation and Crystal Structure of Na2[Be(o‐C6H4O2)2] · 5 H2O

Otto Kumberger, Jürgen Riede, Hubert Schmidbaur

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Abstract

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.

Original languageGerman
Pages (from-to)2701-2703
Number of pages3
JournalChemische Berichte
Volume125
Issue number12
DOIs
StatePublished - Dec 1992
Externally publishedYes

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