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摘要
Anion sensing properties toward F-, OAc- and H2PO4- were studied for new mononuclear and dinuclear Re(I) complexes based on a five-substituted phenanthroline moiety bearing a thiourea hydrogen-bonding receptor. Log(K-1:1) values between 4 and 6 were obtained for the complexes by UV-vis titrations and between 3 and 5 by H-1 NMR titrations. The effect of hydrogen-bonding versus deprotonation of the thiourea receptor upon addition of the anions was also evaluated by UV-vis and NMR titration techniques. In addition, an X-ray structure of the Re(I) precursor complex is reported and the chirality of the mononuclear and dinuclear complexes is discussed.
- 出版日期2012
