An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
Light activation of dyads containing porphyrins and a catalytic ruthenium complex having a high oxidation potential (~1 V vs SCE) is investigated by time-resolved spectroscopy. It is shown that activation of the ruthenium complex occurs through oxidative quenching of the chromophore in the presence of a reversible electron acceptor. Despite the lack of driving force for intramolecular electron transfer, an efficient intramolecular oxidation of the catalyst is observed, suggesting that porphyrins are attractive chromophores to activate oxidation catalysts throughout the visible spectrum.
Abstract Introduction 1 H and 13 C NMR Spectroscopy of Organometallic Compounds 67 Zn NMR Spectroscopy of Organometallic Compounds and Biomacromolecules Theoretical Introduction and Technical Difficulties Solid‐State NMR Interest for Bioinorganic Chemistry Interest for Material–Solid‐State Chemistry Applications
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
Temperature dependencies of the 1H NMR spectra of asymmetric double-decker complexes of DyH(oep)(tpp) (I) and LuH(oep)(tpp) (II), where tpp is tetraphenylporphyrin and oep is octaethylporphyrin, have been analyzed. The kinetic and thermodynamic parameters for intramolecular phenyl ring rotations have been determined. The rotation in (I) is characterized by k(298 K) = 11.4 s−1, ΔH‡ = 48.0±6.0 kJ mol−1, while in (II) the derived parameters are found to be k(298 K) = 14.0 s−1, ΔH‡ = 65.5±7.1 kJ mol−1. The possible reasons for the different characteristics of these complexes are discussed. The structural parameters calculated for I and YbH(oep)(tpp) (III), indicate close similarities between the complexes. Nevertheless, it appears that the principal values of the molar paramagnetic susceptibility tensor (χi) differ significantly in these complexes.
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
