Richard Winpenny | |
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Born | Richard Eric Parry Winpenny Port Talbot, Wales, UK |
Education | Sandfields Comprehensive School, Port Talbot |
Alma mater | Imperial College London [1] (Bsc., PhD) |
Known for | Single-molecule magnetism Inorganic synthesis Supramolecular chemistry Polymetallic caged complexes |
Awards |
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Scientific career | |
Fields | Inorganic chemistry Magnetochemistry |
Institutions | The University of Manchester |
Thesis | New heterometallic polynuclear complexes (1988) |
Doctoral advisor | David Goodgame |
Doctoral students | Nicholas F. Chilton [7] |
Richard Eric Parry Winpenny FRSC FLSW is a British chemist and a professor in the Department of Chemistry at the University of Manchester. [1] Winpenny's research is within the fields of inorganic chemistry and magnetochemistry, specifically the areas of single-molecule magnetism, inorganic synthesis, supramolecular chemistry and polymetallic caged complexes. [8]
Winpenny was educated at Sandfields Comprehensive School, Port Talbot, where he was influenced by his excellent chemistry teachers, John Hardie and Vivien Davies, to study chemistry at university. [9] He thus completed both his Bachelor of Science and Doctor of Philosophy degree at Imperial College London in 1985 and 1988 respectively. [9] His PhD on New heterometallic polynuclear complexes was supervised by David Goodgame. [9] [10]
Upon completing his PhD, Winpenny completed his postdoctoral research with John Fackler, Jr at Texas A&M University from 1988 to 1989 where he researched on mass spectrometry of gold clusters. [1] In 1990, he joined the University of Edinburgh as an academic, and in 2000, moved to The University of Manchester as the chair of inorganic chemistry. [9]
Winpenny was the Associate Dean for Research in the University of Manchester Faculty of Science and Engineering from September 2008 to April 2010. [9] He was also the director of the Photon Science Institute from October 2009 to April 2014. [11] Winpenny was also the head of the Department of Chemistry at the University of Manchester from August 2014 to April 2018, and is the director and chief scientific officer at Sci-Tron(Ltd.). [9] He was also awarded Engineering and Physical Sciences Research Council (EPSRC) Established Career Fellowship (January 2018 to December 2022) and also holds a European Research Council Advanced Fellowship from September 2018 to August 2022. [12]
Winpenny is classed as one of the leading synthetic chemists of polymetallic cage complexes. [6] He has developed a wide range of heterometallic rings as a new class of molecular magnets, [6] which have been exploited to develop new physics and techniques with proposals to use them in quantum information processing. These rings also show unique capabilities to act as resist materials for electron beam lithography (EBL).
A wide range of literature has been published by Winpenny on the synthesis, structural and property analysis of heterometallic rings, polymetallic cages, single molecule magnets, and f-block and d-block metal complexes. [13] [14] [15] The published work by Winpenny has gained more than 24,000 citations as of 2020. [8]
In 2007, Winpenny also reported the first intrinsic spin-lattice (T1) and phasecoherence (T2) relaxation times in molecular nanomagnets. The results showed that the value of T2 in deuterated samples were of several orders of magnitude longer than the duration of spin manipulations which satisfies the prerequisite for the deployment of molecular nanomagnets in quantum information applications. [16]
In 2016, a research led by Winpenny, Nicholas F. Chilton and Yan‐Zhen Zheng was able to report a monometallic dysprosium complex which showed the largest effective energy barrier to magnetic relaxation of Ueff = 1815 K. [17] The research also showed the largest blocking temperature (TB) for a monometallic complex.
Dysprosium is a chemical element; it has symbol Dy and atomic number 66. It is a rare-earth element in the lanthanide series with a metallic silver luster. Dysprosium is never found in nature as a free element, though, like other lanthanides, it is found in various minerals, such as xenotime. Naturally occurring dysprosium is composed of seven isotopes, the most abundant of which is 164Dy.
William Nunn Lipscomb Jr. was a Nobel Prize-winning American inorganic and organic chemist working in nuclear magnetic resonance, theoretical chemistry, boron chemistry, and biochemistry.
Intersystem crossing (ISC) is an isoenergetic radiationless process involving a transition between the two electronic states with different spin multiplicity.
Nuclear magnetic resonance spectroscopy, most commonly known as NMR spectroscopy or magnetic resonance spectroscopy (MRS), is a spectroscopic technique based on re-orientation of atomic nuclei with non-zero nuclear spins in an external magnetic field. This re-orientation occurs with absorption of electromagnetic radiation in the radio frequency region from roughly 4 to 900 MHz, which depends on the isotopic nature of the nucleus and increased proportionally to the strength of the external magnetic field. Notably, the resonance frequency of each NMR-active nucleus depends on its chemical environment. As a result, NMR spectra provide information about individual functional groups present in the sample, as well as about connections between nearby nuclei in the same molecule. As the NMR spectra are unique or highly characteristic to individual compounds and functional groups, NMR spectroscopy is one of the most important methods to identify molecular structures, particularly of organic compounds.
A single-molecule magnet (SMM) is a metal-organic compound that has superparamagnetic behavior below a certain blocking temperature at the molecular scale. In this temperature range, an SMM exhibits magnetic hysteresis of purely molecular origin. In contrast to conventional bulk magnets and molecule-based magnets, collective long-range magnetic ordering of magnetic moments is not necessary.
A spin ice is a magnetic substance that does not have a single minimal-energy state. It has magnetic moments (i.e. "spin") as elementary degrees of freedom which are subject to frustrated interactions. By their nature, these interactions prevent the moments from exhibiting a periodic pattern in their orientation down to a temperature much below the energy scale set by the said interactions. Spin ices show low-temperature properties, residual entropy in particular, closely related to those of common crystalline water ice. The most prominent compounds with such properties are dysprosium titanate (Dy2Ti2O7) and holmium titanate (Ho2Ti2O7). The orientation of the magnetic moments in spin ice resembles the positional organization of hydrogen atoms (more accurately, ionized hydrogen, or protons) in conventional water ice (see figure 1).
Martin Karplus is an Austrian and American theoretical chemist. He is the Director of the Biophysical Chemistry Laboratory, a joint laboratory between the French National Center for Scientific Research and the University of Strasbourg, France. He is also the Theodore William Richards Professor of Chemistry, emeritus at Harvard University. Karplus received the 2013 Nobel Prize in Chemistry, together with Michael Levitt and Arieh Warshel, for "the development of multiscale models for complex chemical systems".
In chemistry, a pentagonal bipyramid is a molecular geometry with one atom at the centre with seven ligands at the corners of a pentagonal bipyramid. A perfect pentagonal bipyramid belongs to the molecular point group D5h.
Partha Sarathi Mukherjee is an Indian inorganic chemist and a professor at the Inorganic and Physical Chemistry department of the Indian Institute of Science. He is known for his studies on organic nano structures, molecular sensors and catalysis in nanocages. He is a recipient of the Swarnajayanthi Fellowship of the Department of Science and Technology and the Bronze Medal of the Chemical Research Society of India. The Council of Scientific and Industrial Research, the apex agency of the Government of India for scientific research, awarded him the Shanti Swarup Bhatnagar Prize for Science and Technology, one of the highest Indian science awards, in 2016, for his contributions to chemical sciences.
Kim R. Dunbar is an American inorganic chemist and Distinguished Professor of Chemistry at Texas A&M University. Her research concerns inorganic and coordination chemistry, including molecular magnetism, metals in medicine, supramolecular chemistry Involving anions and anion-pi interactions, and multifunctional materials with organic radicals.
George Christou is a British-American chemist, currently the Drago and Distinguished Professor at the University of Florida, previously the Earl Blough Professor at the Indiana University. He is also an Honorary Professor at London Centre for Nanotechnology. His current interests are in bioinorganic chemistry, materials and nanoscale magnets, and supramolecular and cluster chemistry. He was a pioneer of the field of single-molecule magnets and has been a significant figure in inorganic chemistry, with multiple papers each cited over 100 times. He has published over 600 peer-reviewed publications, with an H index of 96, and has been selected to both the Highly Cited Researchers 2014 and 2015 lists. He has received a variety of awards and honours over the years, including the recent American Chemical Society 2019 ACS Award in Inorganic Chemistry, the 2017 SEC Faculty Achievement Award, the 2016 Southern Chemist Award, and the 2016 Nyholm Prize of the UK Royal Society of Chemistry. He was named one of 15 Florida Most Influential Scientists.
David Paul Mills is a British chemist and a Professor in the Department of Chemistry at The University of Manchester. His research typically investigates the chemistry of the lanthanide and actinide f-block elements. This is generally based on the synthesis of new f-block complexes, structural and bonding properties and their uses in different fields including in nuclear fuel cycles, energy and single molecule magnets.
Nicholas Frederick Chilton is an Australian chemist and a Professor in the Research School of Chemistry at The Australian National University and The Department of Chemistry at The University of Manchester. His research is in the areas of magnetochemistry and computational chemistry, and includes the design of high-temperature single molecule magnets, molecular spin qubits for quantum information science, methods and tools for modelling magnetic calculations.
David Collison is a British chemist and a Professor in the Department of Chemistry at The University of Manchester. His research in general is based on inorganic chemistry and magnetochemistry, specifically on coordination chemistry, electron paramagnetic resonance spectroscopy and f-block chemistry.
Igor Guerrero Larrosa is a Spanish chemist and a professor in the Department of Chemistry at The University of Manchester. His research in general is based on organic chemistry and inorganic chemistry, specifically on the areas of inorganic catalysis and organic synthesis including the application to C-H and decarboxylative activation.
Eric John Logan McInnes is a British chemist and a Professor in the Department of Chemistry at The University of Manchester. His research in general is based on inorganic chemistry and magnetochemistry, specifically on molecular magnetism, EPR spectroscopy and coordination chemistry.
Floriana Tuna is a Romanian chemist and a Senior Research Fellow in the Department of Chemistry at The University of Manchester. Her research in general is based on inorganic chemistry and magnetochemistry, specifically on molecular magnetism, EPR spectroscopy and quantum computing.
Mario Ruben is a German chemist and university professor. Since 2013 he holds the research unit chair „Molecular Materials“ and is director at the Karlsruhe Institute of Technology and at the University of Strasbourg.
Danna Freedman is an American chemist and the Frederick George Keyes Professor of Chemistry at the Massachusetts Institute of Technology. Her group's research focuses on applying inorganic chemistry towards questions in physics, with an emphasis on quantum information science, materials with emergent properties, and magnetism. Freedman was awarded the 2019 ACS Award in Pure Chemistry and a MacArthur Fellowship in 2022.
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