Abstract
The redox-functionalised polyazacycloalkane receptor 1,4,7,10,13,16-hexa(ferrocenylmethyl)-1,4,7,10,13,16-hexaazacyclooctadecane (L1) has been designed and synthesized and its binding, electrochemical and metal extraction properties studied. The results have been compared to those obtained for the parent redox-active polyazacycloalkane 1,4,8,11-tetra(ferrocenylmethyl)-1,4,8,11-tetraazacyclotetradecane, L3. The cadmium complex of L1 and the free receptor L3 have been crystallographically characterised. The structure of [CdL1][PF6]2·4CH3CN·4H2O consists of cationic [CdL1]2+ units in which the cadmium ion exhibits a distorted octahedral environment. Solution studies by potentiometric methods have also been carried out in the presence of H+ and Cu2+ in 1,4-dioxane–water (70∶30 v/v, 25 °C, 0.1 mol dm–3 KNO3) for L1 and thf–water (70∶30 v/v, 25 °C, 0.1 mol dm–3 [NBun4][ClO4]) for L3. Electrochemical experiments as a function of the pH in the presence of Ni2+, Cu2+, Zn2+, Cd2+ or Pb2+ have been carried out for L1 and L3. The solvent extraction properties of L1 have also been studied.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of the Chemical Society, Dalton Transactions
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
