Strathprints Home | Open Access | Browse | Search | User area | Copyright | Help | Library Home | SUPrimo

Encapsulating [FeFe]-hydrogenase model compounds in peptide hydrogels dramatically modifies stability and photochemistry

Frederix, Pim and Kania, Rafal and Wright, Joseph A. and Lamprou, Dimitrios and Ulijn, Rein and Pickett, Christopher J. and Hunt, Neil (2012) Encapsulating [FeFe]-hydrogenase model compounds in peptide hydrogels dramatically modifies stability and photochemistry. Dalton Transactions, 41 (42). pp. 13112-13119. ISSN 1472-7773

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

A [FeFe]-hydrogenase model compound (µ-S(CH2)3S)Fe2(CO)4(PMe3)2 [1] has been encapsulated in a Low Molecular Weight (LMW) hydrogelator (Fmoc-Leu-Leu). Linear infrared absorption spectroscopy, gel melting and ultrafast time-resolved infrared spectroscopy experiments reveal significant contrasts in chemical environment and photochemistry between the encapsulated molecules and solution phase systems. Specifically, the gel provides a more rigid hydrogen bonding environment, which restricts isomerisation following photolysis while imparting significant increases in stability relative to a similarly aqueous solution. Since understanding and ultimately controlling the mechanistic role of ligands near Fe centers is likely to be crucial in exploiting artificial hydrogenases, these gels may offer a new option for future materials design involving catalysts.

Item type: Article
ID code: 41073
Keywords: [FeFe]-hydrogenase model compound , peptide hydrogels , stability , photochemistry , chemical environment , encapsulated molecules, solution phase systems, artificial hydrogenases, Physics, Pharmacy and materia medica, Chemistry
Subjects: Science > Physics
Medicine > Pharmacy and materia medica
Science > Chemistry
Department: Faculty of Science > Physics
Faculty of Science > Strathclyde Institute of Pharmacy and Biomedical Sciences
Technology and Innovation Centre > Continuous Manufacturing and Crystallisation (CMAC)
Faculty of Science > Pure and Applied Chemistry
Technology and Innovation Centre > Bionanotechnology
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 11 Sep 2012 13:53
    Last modified: 13 Jun 2013 09:45
    URI: http://strathprints.strath.ac.uk/id/eprint/41073

    Actions (login required)

    View Item