Control of spin coupling through a redox-active bridge in a dinickel(ii) porphyrin dimer: step-wise oxidations enable isolations of a chlorin–porphyrin heterodimer and a dication diradical with a singlet ground state

Autor: Younis Ahmad Pandit, Mohammad Usman, Anindya Sarkar, Syed Jehanger Shah, Sankar Prasad Rath

Publikováno v: Dalton Transactions. 52:877-891

A dinickel(II)porphyrin dimer has been used here in which the redox-active pyrrole-moiety, similar to the tryptophan residue in diheme enzymes such as MauG and bCcP, has been placed between two Ni(II)porphyrin centers connected

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ead56f834b5238d77f5ac7df6c2195f
https://doi.org/10.1039/d2dt03283j

Heme-Heme Interactions in Diheme Cytochromes: Effect of Mixed-Axial Ligation on the Electronic Structure and Electrochemical Properties

Autor: Firoz Shah Tuglak Khan, Syed Jehanger Shah, Sankar Prasad Rath, Dolly Chandel, Deepannita Samanta

Publikováno v: Inorganic chemistry. 60(17)

Diheme cytochromes, the simplest members in the multiheme family, play substantial biochemical roles in enzymatic catalysis as well as in electron transfer. A series of diiron(III) porphyrin dimers have been synthesized as active site analogues of di

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21c1f0813e7aec96787ee27b13ff86a4
https://pubmed.ncbi.nlm.nih.gov/34370470

Equatorial ligand plane perturbations lead to a spin-state change in an iron(iii) porphyrin dimer

Autor: Firoz Shah Tuglak Khan, Mala A. Sainna, Syed Jehanger Shah, Fabián G. Cantú Reinhard, Susovan Bhowmik, Sankar Prasad Rath, Sam P. de Visser

Publikováno v: Khan, F S T, Shah, S J, Bhowmik, S, Reinhard, F G C, Sainna, M A, De Visser, S P & Rath, S P 2019, ' Equatorial ligand plane perturbations lead to a spin-state change in an iron(iii) porphyrin dimer ', Dalton Transactions, vol. 48, no. 19, pp. 6353-6357 . https://doi.org/10.1039/c9dt01182j

A complete reversal of the spin state of iron(iii) is observed upon a small change to the diporphyrin bridge from ethane to ethene by keeping all other factors intact. Combined analysis using single crystal X-ray structure determination, Mössbauer,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9dfbe3ca05767e67fa5467f0b36d2b32
https://pubmed.ncbi.nlm.nih.gov/30994665

Contents list.

Publikováno v: Dalton Transactions: An International Journal of Inorganic Chemistry; 4/21/2024, Vol. 53 Issue 15, p6477-6487, 11p

Contents list.

Publikováno v: Dalton Transactions: An International Journal of Inorganic Chemistry; 1/28/2023, Vol. 52 Issue 4, p829-838, 10p