Electrochemical and Complexation Studies of Ferrocenyl Complexes Bearing Terpyridine or Phenanthroline Ligands

Abstract

The coordinative properties of 1,1Ј-bis(phen)-and bis(terpy)-carboxyester-bridged derivatives of ferrocene L 1 and L 2 (phen refers to 2,9-substituted-1,10-phenanthroline; terpy refers to 4Ј-substituted-2,2Ј:6Ј,2"-terpyridine) towards various transition metal cations have been investigated by a combination of cyclic voltammetry, mass spectrometry and 1 H NMR spectroscopy. These novel redox receptors form 1:1 ligand:metal complexes with all the surveyed metal cations

Development of cavity microelectrode devices and their uses in various research fields

“…Hybride organic-metal polymers can also be studied as solid material in the CME. For instance, ferrocene derivatives are of interest in many fields such as homogeneous catalysis, medicine… [167][168][169][170][171][172][173]. Metal phosphinates are usually resistant to oxidation and hydrolysis, the phosphinate groups acting as solid bridging ligands.…”

Electrochemical, spectroscopic, magnetic and structural studies of complexes bearing ferrocenyl ligands of N-(3-hydroxypicolinoyl)picolinamide

“…Depending on the metal targeted, different receptors have been employed, including crown ether derivatives, polyaza macrocycles or N-donor ligands. 10 For the latter, the ferrocene derivatives of, for example, bipyridine, terpyridine, quinquepyridine, sexipyridine, cyclen or N-4-[3,5-di-(2-pyridyl)-1,2,4-triazoyl] have been studied, [11][12][13][14][15][16][17][18] but, to the best of our knowledge, no reports of redox cation sensors bearing the bis(2-pyridylcarbonyl)amine (Hbpca) moiety have been reported. This is relatively surprising as the complexation of Hbpca with various transition metals has been intensively investigated [19][20][21][22][23][24][25][26][27][28][29][30] and its versatility towards metal ions could be of great interest.…”

Ferrocenylphosphonic acid: from molecule to electro-active hybrid materials

“…The redox potential depends on the electronic effect of the ring substituents on ferrocene. This change of the redox potential of the ferrocenyl center with the electronic effect of the substituent (chelating ligand) has been used to electrochemically sense a neutral or ionic guest molecule allowing its amperometric or potentiometric titration [1][2][3][4][5]. Phosphonic acids are known to react with metal salts to form organicinorganic metal phosphonates, containing stable POmetal bonds, with usually a two dimensional network [6]; they have also been used as grafting molecules [6].…”