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  • 1. Sabounchei, J. S.
    et al.
    Heaton, B. T.
    Jacob, C.
    Jones, C. L.
    Olsson, A.
    Smith, A. K.
    Kloo, Lars A.
    KTH, Superseded Departments, Chemistry.
    Rhodium complexes containing O-bonded NHxMe2-xCHO (x=0, 1, 2): X-ray structure of Rh(PPh3)(3)(OCHNHMe) CIO42001In: Helvetica Chimica Acta, ISSN 0018-019X, E-ISSN 1522-2675, Vol. 84, no 10, p. 3075-3083Article in journal (Refereed)
    Abstract [en]

    Displacement of norbornadiene (nbd; bicyclo[2.2.1]hepta-2,5-diene) from [Rh(PPh3)(2)(nbd)]ClO4 by hydrogenation in the presence of PPh3 and formamide or Me-substituted derivatives, results in the formation of O-bonded formamide complexes [Rh(PPh3)(3)(OCHNHxMe2-x)]ClO4 (x=0, 1, 2) rather than N-bonded derivatives. These have been characterised by spectroscopic measurements and, in the case of [Rh(PPh3)(3)(OCHNHMe)]ClO4, by X-ray crystallography. All undergo oxidative addition with H-2, and the rates of ligand exchange in the Rh-I and Rh-III complexes have been determined by magnetisation-transfer measurements.

  • 2. Xia, Ming
    et al.
    Liu, Jianhui
    Gao, Yan
    Akermark, Bjorn
    Sun, Licheng
    KTH, School of Chemical Science and Engineering (CHE), Chemistry, Organic Chemistry.
    Synthesis and photophysical and electrochemical study of tyrosine covalently linked to high-valent copper(III) and manganese(IV) complexes2007In: Helvetica Chimica Acta, ISSN 0018-019X, E-ISSN 1522-2675, Vol. 90, no 3, p. 553-561Article in journal (Refereed)
    Abstract [en]

    As bio-inspired chemical model of the oxygen-evolving complex (OEC) in photosystem II, a new tyrosine-modified corrole ligand 3 and its high-valent copper and manganese complexes 3a and 3b were synthesized and characterized. The copper complexes 1a and 2a of corrole 1 and 2 were also prepared for comparison. The emission property indicates that the emission of ligands 2 and 3 is located at 670 nm, but no emission is observed for their metal complexes due to its suppression by the metal center. The electrochemical study shows that 3a might dimerize at the first two reversible oxidations, a behavior which was not observed in the case of In and 2a. ne corrolato manganese(IV) complex 3b shows one reversible reduction and one quasireversible oxidation at -0.17 and 0.77 V vs. Ag/Ag+, respectively.

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