Výsledky vyhledávání - "Sarah K, Hasnip"

Progress towards the characterisation of faecal compounds

Autor: Don B, Clarke, James R, Startin, Sarah K, Hasnip, Colin, Crews, Antony S, Lloyd, M John, Dennis

Publikováno v: Analytical methods : advancing methods and applications. 3(3)

Intestinal nitrosation produces ATNCs (Apparent Total N-nitroso Compounds) and these have been linked with an increased risk of colon cancer from eating red meat. Modern LC-MS instrumentation makes direct detection of ATNC components in faecal water

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::564d5c9e0cdf06357845ff540b85cc22
https://pubmed.ncbi.nlm.nih.gov/32938070

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Activation of H2 by halocarbonyl bis-phosphine and bis-arsine iridium(i) complexes. The use of parahydrogen induced polarisation to detect species present at low concentration and investigate their reactivityBased on the presentation given at Dalton Discussion No. 4, 10–13th January 2002, Kloster Banz, Germany

Autor: Simon B. Duckett, Christopher J. Sleigh, Graham K. Barlow, Sarah K. Hasnip, Diana R. Taylor, Simon A. Colebrooke, Michael J. Taylor

Publikováno v: Journal of the Chemical Society, Dalton Transactions. :743-751

The iridium phosphine complexes Ir(CO)Cl(L)2 [L = PPh3, PMe3, AsPh3 and PPh2Cl, and L2 = (PPh2Cl)(PPh3)] add H2 to form the corresponding dihydrides IrH2(CO)Cl(L)2. These products are detected at enhanced levels of sensitivity through the 1H NMR sign

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d189b56bd6000f42f324e218c6540963
https://doi.org/10.1039/b107444j

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Progress towards the characterisation of faecal N-nitroso compounds

Autor: Sarah K. Hasnip, Don Brian Clarke, James R. Startin, Antony S. Lloyd, Colin Crews, M. John Dennis

Publikováno v: Analytical Methods. 3:544

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::62b0ea8d86d0abcfb5bb519722e9b98d
https://doi.org/10.1039/c0ay00365d

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Kinetic and mechanistic examination of NBu4[IrH2(CO)2I2] and NBu4[RhH2(CO)2I2] via para-hydrogen enhanced NMR spectroscopy

Autor: Simon B. Duckett, Diana R. Taylor, Sarah K. Hasnip, Michael J. Taylor, Graham K. Barlow

Publikováno v: Chemical Communications. :889-890

para-Hydrogen enhanced NMR signals are used to show that NBu4[M(CO)2I2] (M = Rh, Ir) add hydrogen to form NBu4- {all-cis-[M(H)2(CO)2I2]} which for M = Ir undergoes H2 elimination in a step where ΔH‡ 106 ± 10 kJ mol–1 and ΔS‡± 6 J K–1 mol�

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fdf67ca92f44f5791959730de957a0b6
https://doi.org/10.1039/a900961b

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New products in an old reaction: isomeric products from H2 addition to Vaska’s complex and its analogues

Autor: Simon B. Duckett, Sarah K. Hasnip, Diana R. Taylor, Michael J. Taylor, Graham K. Barlow, Christopher J. Sleigh

Publikováno v: Chemical Communications. :1717-1718

para-Hydrogen enhanced NMR signals aid detection of minor isomers of complexes IrH2(L)2(CO)Cl (L = PPh3, PMe3, PPh2Cl and AsPh3) containing magnetically inequivalent hydride ligands that are produced via addition across the L–Ir–L axis of Ir(L)2(

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e8cd9e9a95073b2d007b0edfc2a11cf6
https://doi.org/10.1039/a905590h

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