caa a22 4500 605545871 CHVBK 20210128100938.0 cr unu---uuuuu 210128e20150401xx s 000 0 eng 10.1007/s00723-014-0624-5 doi (NATIONALLICENCE)springer-10.1007/s00723-014-0624-5 HYSCORE on Photoexcited Triplet States [Elektronische Daten] [Claudia Tait, Patrik Neuhaus, Harry Anderson, Christiane Timmel, Donatella Carbonera, Marilena Di Valentin] HYperfine Sublevel CORrElation spectroscopy (HYSCORE) is one of the most widely applied EPR techniques for the investigation of hyperfine couplings in a wide range of spin systems; here, it is applied for the first time to a photoexcited triplet state. The analytical expressions describing the electron spin echo envelope modulations in a HYSCORE experiment on a triplet state coupled to spin ½ nuclei and spin 1 nuclei with weak nuclear quadrupole interactions were derived employing the density matrix formalism and used to determine the characteristic features of this experiment when applied to a triplet state. Experimental HYSCORE spectra recorded on the photoexcited triplet state of a meso-substituted zinc porphyrin are used to investigate the 14N hyperfine interactions in this system. The results are compared to one-dimensional three-pulse Electron Spin Echo Envelope Modulation (ESEEM) experiments and the comparison clearly shows the advantage of the HYSCORE experiment for investigation of the hyperfine couplings of a spin 1 nucleus for triplet states in disordered powder samples. The experimental HYSCORE data are discussed and interpreted in light of the properties of triplet state HYSCORE spectra identified using our theoretical approach. Springer-Verlag Wien, 2015 Tait Claudia Dipartimento di Scienze Chimiche, Università degli Studi di Padova, Via Marzolo 1, 35131, Padua, Italy aut Neuhaus Patrik Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, OX1 3TA, Oxford, UK aut Anderson Harry Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, OX1 3TA, Oxford, UK aut Timmel Christiane Department of Chemistry, Centre for Advanced Electron Spin Resonance, University of Oxford, South Parks Road, OX1 3QR, Oxford, UK aut Carbonera Donatella Dipartimento di Scienze Chimiche, Università degli Studi di Padova, Via Marzolo 1, 35131, Padua, Italy aut Di Valentin Marilena Dipartimento di Scienze Chimiche, Università degli Studi di Padova, Via Marzolo 1, 35131, Padua, Italy aut Applied Magnetic Resonance Springer Vienna 46/4(2015-04-01), 389-409 0937-9347 46:4<389 2015 46 723 https://doi.org/10.1007/s00723-014-0624-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00723-014-0624-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tait Claudia Dipartimento di Scienze Chimiche, Università degli Studi di Padova, Via Marzolo 1, 35131, Padua, Italy aut NATIONALLICENCE 700 1- Neuhaus Patrik Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, OX1 3TA, Oxford, UK aut NATIONALLICENCE 700 1- Anderson Harry Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, OX1 3TA, Oxford, UK aut NATIONALLICENCE 700 1- Timmel Christiane Department of Chemistry, Centre for Advanced Electron Spin Resonance, University of Oxford, South Parks Road, OX1 3QR, Oxford, UK aut NATIONALLICENCE 700 1- Carbonera Donatella Dipartimento di Scienze Chimiche, Università degli Studi di Padova, Via Marzolo 1, 35131, Padua, Italy aut NATIONALLICENCE 700 1- Di Valentin Marilena Dipartimento di Scienze Chimiche, Università degli Studi di Padova, Via Marzolo 1, 35131, Padua, Italy aut NATIONALLICENCE 773 0- Applied Magnetic Resonance Springer Vienna 46/4(2015-04-01), 389-409 0937-9347 46:4<389 2015 46 723