Portius, Peter - University of Sheffield

个人简介

Dr. Portius obtained a PhD in Chemistry from Humboldt University in Berlin in 2001, where he worked under the supervision of Prof. AC Filippou on the reactivity of germanium(II) compounds. After his PhD he became a postdoctoral researcher at the University of Nottingham, where he also was a Humboldt Fellow and a Marie Curie Fellow. In 2005 he became a postdoctoral researcher and then research associate at the University of Bonn. In 2007 he was appointed as an EPSRC Advanced Research Fellow at the University of Sheffield, where he was appointed lecturer in 2010.

研究领域

Our scientific interests are in the field of high energy compounds from preparation to understanding and controlling reactivity as well as in the area of practical applications. We want to understand the factors which govern their stability (with respect to thermal and mechanical shocks as well as to light) and energy release. Our current research pursues two main strands: (i) synthesis and characterisation of novel energetic coordination compounds and (ii) photochemistry of nitrogen-rich covalent compounds. The potential applications of our research range from chemical energy storage to pyrotechnics, explosives, and propellants. Research Peter Portius 2 Energetic coordination compounds Work in this area involves the exploration of preparative approaches toward new main-group element complexes bearing all-nitrogen or nitrogen-rich ligands. Specific systems we study are • polyazido complexes, such as [E(N3)6]- (E = P shown left) • poly(tetrazolato) complexes • polynitrato complexes Research is directed towards the synthesis of new complexes and the study of their stability and reactivity and the derivation of structure-stability relationships. Research Peter Portius 1 Photochemistry and photophysics of nitrogen-rich covalent compounds Photochemical transformations of high-energy compounds are not understood well. They offer interesting opportunities into studying the mechanism of decomposition of such compounds. In particular, we are interested in the photophysics and photochemistry of nitrogen-rich compounds, which are studied using a combination of Laser excitation and time-resolved infrared spectroscopy (a typical TRIR spectrum shown right).

近期论文

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Portius P & Davis M (2016) Synthesis of six-coordinate mono-, bis-, and tris(tetrazolato) complexes via [3 + 2] cycloadditions of nitriles to silicon-bound azido ligands. Dalton Transactions, 43, 17141-17152. View this article in WRRO Portius P, Peerless B, Davis M & Campbell R (2016) Homoleptic Poly(nitrato) Complexes of Group 14 Stable at Ambient Conditions. Inorganic Chemistry, 55(17), 8976-8984. View this article in WRRO Campbell R, Davis MF, Fazakerley M & Portius P (2015) Taming Tin(IV) Polyazides. Chemistry - A European Journal, 21(51), 18690-18698. View this article in WRRO Peerless B, Keane T, Meijer AJHM & Portius P (2015) Homoleptic Low-Valent Polyazides of Group 14 Elements. Chemical Communications, 51(35), 7435-7438. View this article in WRRO Portius P, Meijer AJHM, Towrie M, Crozier BF & Schiager I (2014) Picosecond time-resolved infrared spectroscopy of rhodium and iridium azides. Dalton Trans., 43(47), 17694-17702. View this article in WRRO Portius P, Davis M, Campbell R, Hartl F, Zeng Q, Meijer AJHM & Towrie M (2013) Dinitrogen release from arylpentazole: a picosecond time-resolved infrared, spectroelectrochemical, and DFT computational study.. Journal of Physical Chemistry A, 117(48), 12759-12769. View this article in WRRO Domene C, Portius P, Fowler PW & Bernasconi L (2013) Simulating the pyrolysis of polyazides: a mechanistic case study of the [[P(N3)6]- anion.. Inorg Chem, 52(4), 1747-1754. Portius P & Davis M (2013) Recent developments in the chemistry of homoleptic azido complexes of the main group elements. Coordination Chemistry Reviews. George MW, Hall MB, Portius P, Renz AL, Sun XZ, Towrie M & Yang X (2011) Combined experimental and theoretical investigation into C-H activation of cyclic alkanes by Cp'Rh(CO)2 (Cp' = η5-C5H5 or η5-C5Me5).. Dalton Trans, 40(8), 1751-1757. Portius P & Davis M (2010) A new hexakis(isocyanato)silicate(IV) and the first neutral Lewis-base adducts of silicon tetraisocyanate.. Dalton Trans(2), 527-532.