naa a22 4500 510733751 CHVBK 20180411083002.0 cr unu---uuuuu 180411e20131101xx s 000 0 eng 10.1007/s12039-013-0505-8 doi (NATIONALLICENCE)springer-10.1007/s12039-013-0505-8 Effect of charged microenvironment on the electrochemistry of [Fe2S2(OC6H5)4]2− cluster [Elektronische Daten] [DHANADA SARMAH, DIGANTA DAS] Although cysteine is the preferred ligand for [Fe-S] core in case of iron-sulphur proteins, presence of other ligands together with cysteine is not uncommon. Being basically electron transfer proteins, redox potential of [Fe-S] core in these proteins in crucial to their functioning. Among other factors, charged nature of the microenvironment is believed to tune the redox potential. The iron-sulphur cluster, [Fe2S2(OC6H5)4]2−, has been investigated electrochemically in positive and negative microenvironments, both in solution and in film. Charge nature around the active centre has been found to affect its redox potential and diffusion coefficient significantly. In a film, where charges are more localized compared to solution, the effect on redox potential was more prominent. Graphical Abstract Redox potential and diffusion co-efficient of [Fe2S2(OC6H5)4]2− has been measured by changing the charge nature of the immediate microenvironment both in solution and in film. Positive and negative environment shifted the redox potential in positive and negative direction, respectively. In film, the effects have been more prominent due to localization of the charges. Indian Academy of Sciences, 2013 Iron-sulphur proteins nationallicence cyclic voltammetry nationallicence square wave voltammetry nationallicence redox potential nationallicence film nationallicence diffusion coefficient nationallicence SARMAH DHANADA Department of Chemistry, Gauhati University, 781 014, Guwahati, India aut DAS DIGANTA Department of Chemistry, Gauhati University, 781 014, Guwahati, India aut Journal of Chemical Sciences Springer India 125/6(2013-11-01), 1429-1434 0974-3626 125:6<1429 2013 125 12039 https://doi.org/10.1007/s12039-013-0505-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12039-013-0505-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- SARMAH DHANADA Department of Chemistry, Gauhati University, 781 014, Guwahati, India aut NATIONALLICENCE 700 1- DAS DIGANTA Department of Chemistry, Gauhati University, 781 014, Guwahati, India aut NATIONALLICENCE 773 0- Journal of Chemical Sciences Springer India 125/6(2013-11-01), 1429-1434 0974-3626 125:6<1429 2013 125 12039 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer