Henry Rzepa

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Henry Rzepa
Henry Rzepa.jpg
Born Henry Stephen Rzepa
June 1950 (age 67)[1]
Alma mater Imperial College London (PhD)
Awards Herman Skolnik Award (2012)[2]
Website
Scientific career
Fields Chemistry[3]
Institutions
Thesis Hydrogen Transfer Reactions of Indoles (1974)
Doctoral advisor Brian Challis
Doctoral students
Influences Michael J. S. Dewar[7]

Henry Stephen Rzepa (born 1950)[1] is a chemist and Emeritus Professor of Computational chemistry at Imperial College London.[8][5][9]

Education[edit]

Rzepa was born in London in 1950,[citation needed] was educated at Wandsworth Comprehensive School, and then entered the chemistry department at Imperial College London where he graduated in 1971. He stayed to do a Ph.D. on the physical organic chemistry of indoles supervised by Brian Challis.[10][11]

Career and research[edit]

After spending three years doing postdoctoral research at the University of Texas at Austin, Texas with Michael Dewar[7] in the then emerging field of computational chemistry, he returned to Imperial College after being appointed a lecturer.[when?] He was one of the first[citation needed] to be appointed in the UK in the emerging subject of computational organic chemistry. As of 2017 he is Emeritus Professor of Computational Chemistry.[12][13]

His research interests[3] directed towards combining different types of chemical information tools for solving structural, mechanistic and stereochemical problems in organic, bioorganic, organometallic chemistry and catalysis, using techniques such as semiempirical molecular orbital methods (the MNDO family), Nuclear Magnetic Resonance (NMR) spectroscopy, X-ray crystallography and ab initio quantum theories. Aware of the complex semantic issues involved in converging different areas of chemistry to address modern multidisciplinary problems, he started investigating the use of the Internet as an information and integrating medium around 1987, focusing in 1994 on the World Wide Web as having the most potential.[14] Peter Murray-Rust and he first introduced Chemical Markup Language (CML) in 1995 as a rich carrier of semantic chemical information and data; and they coined the term Datument as a portmanteau word to better express the evolution from the documents produced by traditional academic publishing methods to the Semantic Web ideals expressed by Tim Berners-Lee.[15][16][17]

His contributions to chemistry[18][19][20][21][22][23][24] include exploration of Möbius aromaticity, highlighted by the theoretical discovery of relatively stable forms of cyclic conjugated molecules which exhibit two and higher half-twists in the topology rather than just the single twist associated with Mobius systems (and hence possibly better termed Johann Benedict Listing rings). He is responsible for unraveling the mechanistic origins of stereocontrol in a variety of catalytic polymerisation reactions, including that of lactide to polylactide, a new generation of bio-sustainable polymer not dependent on oil. He is also known for the integration of chemistry (in the form of CML) with latest Internet technologies such as RSS and Podcasting, for the introduction of the Chemical MIME types in 1994 and for,[25] the first electronic-only conferences in organic chemistry, which ran from 1995-1998.[citation needed]

Awards and honours[edit]

Rzepa was awarded the Herman Skolnik Award in 2012 by the American Chemical Society.[2]

References[edit]

  1. ^ a b Anon (2017). "Henry Stephen RZEPA, June 1950". companieshouse.gov.uk. London: Companies House. Archived from the original on 2017-04-25. 
  2. ^ a b Anon (2011). "CCL Archives". ccl.net. 
  3. ^ a b Henry Rzepa publications indexed by Google Scholar Edit this at Wikidata
  4. ^ Allan, Charlotte Sarah Moreis (2009). Computational mechanistic and stereochemical studies of single-site polymerisation catalysts and reactions. ethos.bl.uk (PhD thesis). Imperial College London. hdl:10044/1/6160. OCLC 757122228. 
  5. ^ a b Allan, C. S. M.; Rzepa, H. S. (2008). "A computational investigation of the structure of polythiocyanogen". Dalton Transactions (48): 6925. doi:10.1039/b810147g. 
  6. ^ Casher, Omer (2010). Internet based molecular collaborative and publishing tools. ethos.bl.uk (PhD thesis). Imperial College London. hdl:10044/1/6423. OCLC 930656673. 
  7. ^ a b Dewar, M. J. S.; Mckee, M. L.; Rzepa, H. S. (1978). "ChemInform Abstract: MNDO Parameters for third period elements". Chemischer Informationsdienst. 9 (34). doi:10.1002/chin.197834001. ISSN 0009-2975. 
  8. ^ "A Royal Society of Chemistry interview with Henry Rzepa". Archived from the original on 2012-10-19. 
  9. ^ Rzepa, H. S. (2009). "Wormholes in chemical space connecting torus knot and torus link π-electron density topologies". Physical Chemistry Chemical Physics. 11 (9): 1340–1345. Bibcode:2009PCCP...11.1340R. doi:10.1039/b810301a. PMID 19224034. 
  10. ^ Rzepa, Henry Stephen (1974). Hydrogen transfer reactions of indoles. ethos.bl.uk (PhD thesis). University of London. doi:10.5281/zenodo.18777. hdl:10044/1/20860. OCLC 930651784. 
  11. ^ Challis, Brian C.; Rzepa, Henry S. (1975). "Heteroaromatic hydrogen exchange reactions. Part VIII. The ionisation of 1,3-dimethylindolin-2-one". Journal of the Chemical Society, Perkin Transactions 2 (15): 1822. doi:10.1039/p29750001822. ISSN 0300-9580. 
  12. ^ "Information on conference speakers". ukoln.ac.uk. 
  13. ^ "Rzepa Biography". rzepa.net. 
  14. ^ Rzepa, Henry S.; Whitaker, Benjamin J.; Winter, Mark J. (1994). "Chemical applications of the World-Wide-Web system". Journal of the Chemical Society, Chemical Communications (17): 1907. doi:10.1039/c39940001907. ISSN 0022-4936. 
  15. ^ ACS Publications News
  16. ^ Professor Henry Rzepa discusses the launch of Imperial College London's iTunes U on YouTube, Imperial College London
  17. ^ Chemical Science and Data Repository Design with Prof. Henry Rzepa on YouTube, Science & Engineering South
  18. ^ O'Boyle, N. M.; Guha, R.; Willighagen, E. L.; Adams, S. E.; Alvarsson, J.; Bradley, J. C.; Filippov, I. V.; Hanson, R. M.; Hanwell, M. D.; Hutchison, G. R.; James, C. A.; Jeliazkova, N.; Lang, A. S. D.; Langner, K. M.; Lonie, D. C.; Lowe, D. M.; Pansanel, J. R. M.; Pavlov, D.; Spjuth, O.; Steinbeck, C.; Tenderholt, A. L.; Theisen, K. J.; Murray-Rust, P. (2011). "Open Data, Open Source and Open Standards in chemistry: The Blue Obelisk five years on". Journal of Cheminformatics. 3 (1): 37. doi:10.1186/1758-2946-3-37. PMC 3205042Freely accessible. PMID 21999342. 
  19. ^ Guha, R.; Howard, M. T.; Hutchison, G. R.; Murray-Rust, P.; Rzepa, H.; Steinbeck, C.; Wegner, J.; Willighagen, E. L. (2006). "The Blue Obelisk - Interoperability in Chemical Informatics". Journal of Chemical Information and Modeling. 46 (3): 991–998. doi:10.1021/ci050400b. PMID 16711717. 
  20. ^ Rzepa, H. S. (2005). "A Double-Twist Möbius-Aromatic Conformation of [14]Annulene". Organic Letters. 7 (21): 4637–4639. doi:10.1021/ol0518333. PMID 16209498. 
  21. ^ Fowler, P. W.; Rzepa, H. S. (2006). "Aromaticity rules for cycles with arbitrary numbers of half-twists". Physical Chemistry Chemical Physics. 8 (15): 1775–7. doi:10.1039/b601655c. PMID 16633661. 
  22. ^ Marshall, E. L.; Gibson, V. C.; Rzepa, H. S. (2005). "A computational analysis of the ring-opening polymerization of rac-lactide initiated by single-site beta-diketiminate metal complexes: Defining the mechanistic pathway and the origin of stereocontrol". Journal of the American Chemical Society. 127 (16): 6048–51. doi:10.1021/ja043819b. PMID 15839705. 
  23. ^ Murray-Rust, P; Rzepa, H. S.; Williamson, M. J.; Willighagen, E. L. (2004). "Chemical markup, XML, and the World Wide Web. 5. Applications of chemical metadata in RSS aggregators". Journal of Chemical Information and Modeling. 44 (2): 462–9. doi:10.1021/ci034244p. PMID 15032525. 
  24. ^ H S. Rzepa and M. E. Cass (May–June 2006). Progress towards a Holistic Web: Integrating OpenSource programs, Semantic data, Wikis and Podcasts. Spring ConfChem. 
  25. ^ "ECTOC". ch.ic.ac.uk/ectoc.