Abstract
The first member of a water-soluble family of bis(thiosemicarbazone) ligands is reported. It forms a 1:1 complex with Zn" that absorbs intensely in the visible region (λmax= 414 nm; ε= 1.8(4) x 104M-1 cm-1; pH 7.3). Its affinity for ZnII (KD = 5.9(3) x 10-9 M at pH 7.3) was determined by competition with ligand ethylene glycol O,O-bis(2-aminoethyl)-N,N,N,N-tetraacetic acid. Its potential application as a chromophoric probe was demonstrated by estimation of the ZnII binding affinities of the soluble metal-binding domains of two plant metal-transporting proteins.
Original language | English |
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Pages (from-to) | 3071-3073 |
Number of pages | 3 |
Journal | Inorganic Chemistry |
Volume | 49 |
Issue number | 7 |
DOIs | |
Publication status | Published - 5 Apr 2010 |
Externally published | Yes |