PUB - Publikationen an der Universität Bielefeld

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• [31]
  

  2014 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 2677434

  Kuck, D., Salameh, L. C., Onwuka, K. I., and Letzel, M. (2014). Unidirectional triple hydrogen rearrangement in the radical cations of electron-rich 3-aryl-1-propanols: further evidence and limitation. European Journal of Mass Spectrometry 20, 51-61.

  PUB | DOI | WoS | PubMed | Europe PMC
   
• [30]
  

  2013 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 2578727

  Letzel, M., Barth, D., Kuck, D., Grützmacher, H. - F., Kim, S. Y., Yim, M. K., and Choe, J. C. (2013). Unimolecular reactions of gaseous picoline radical cations. A new experimental and computational study. International Journal Of Mass Spectrometry 336, 1-16.

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• [29]
  

  2012 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 2501810

  Fraschetti, C., Letzel, M., Filippi, A., Speranza, M., and Mattay, J. (2012). Enantioselective supramolecular devices in the gas phase. Resorcin[4] arene as a model system. Beilstein Journal of Organic Chemistry 8, 539-550.

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• [28]
  

  2012 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 2474444

  Fraschetti, C., Letzel, M., Paletta, M., Mattay, J., Speranza, M., Filippi, A., Aschi, M., and Rozhenko, A. B. (2012). Cyclochiral resorcin[4]arenes as effective enantioselectors in the gas phase. Journal of Mass Spectrometry 47, 72-78.

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• [27]
  

  2012 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 2453619

  Amick, A. W., Hoegg, E., Harrison, S., Houston, K. R., Hark, R. R., Reingold, I. D., Barth, D., Letzel, M., and Kuck, D. (2012). Site-specific Hydrogen Exchange and Hydrogen Transfer Processes Preceding the Fragmentation of Long-lived Radical Cations of Ethyl Dihydrocinnamate and Related Arylalkanoates. International Journal of Mass Spectrometry 316-318, 206-215.

  PUB | DOI | WoS
   
• [26]
  

  2011 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 2094264

  Botta, B., Fraschetti, C., D'Acquarica, I., Sacco, F., Mattay, J., Letzel, M., and Speranza, M. (2011). Unprecedented gas-phase chiroselective logic gates. Organic & Biomolecular Chemistry 9, 1717-1719.

  PUB | DOI | WoS | PubMed | Europe PMC
   
• [25]
  

  2010 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1795835

  Krohn, K., Ahmed, I., John, M., Letzel, M., and Kuck, D. (2010). Stereoselective Synthesis of Benzylated Prodelphinidins and Their Diastereomers with Use of the Mitsunobu Reaction in the Preparation of Their Gallocatechin Precursors. EUROPEAN JOURNAL OF ORGANIC CHEMISTRY 2010, 2544-2554.

  PUB | DOI | WoS
   
• [24]
  

  2009 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1589018

  Botta, B., Fraschetti, C., D'Acquarica, I., Speranza, M., Novara, F. R., Mattay, J., and Letzel, M. (2009). Gas-Phase Enantioselectivity of Chiral N-Linked Peptidoresorc[4]arene Isomers toward Dipeptides. Journal of Physical Chemistry A 113, 14625-14629.

  PUB | DOI | WoS | PubMed | Europe PMC
   
• [23]
  

  2009 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1634276

  Botta, B., Fraschetti, C., Novara, F. R., Tafi, A., Sacco, F., Mannina, L., Sobolev, A. P., Mattay, J., Letzel, M., and Speranza, M. (2009). Interactions of vinca alkaloid subunits with chiral amido[4]resorcinarenes: a dynamic, kinetic, and spectroscopic study. Organic & Biomolecular Chemistry 7, 1798-1806.

  PUB | DOI | WoS | PubMed | Europe PMC
   
• [22]
  

  2009 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1634738

  Sekiguchi, O., Meyer, V., Letzel, M., Kuck, D., and Uggerud, E. (2009). Energetics and reaction mechanisms for the competitive losses of H-2, CH4 and C2H4 from protonated methylbenzenes-implications to the methanol-to-hydrocarbons (MTH) process. EUROPEAN JOURNAL OF MASS SPECTROMETRY 15, 167-181.

  PUB | DOI | WoS | PubMed | Europe PMC
   
• [21]
  

  2008 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1636725

  Letzel, M., Schäfer, C., Novara, F. R., Speranza, M., Rozhenko, A. B., Schoeller, W., and Mattay, J. (2008). A kinetic study of guest displacement reactions on a host-guest complex with a photoswitchable calixarene. Journal of Mass Spectrometry 43, 1553-1564.

  PUB | DOI | WoS | PubMed | Europe PMC
   
• [20]
  

  2008 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1592768

  Igoli, J. O., Onyiriuka, S. O., Letzel, M., Nwaji, M. N., and Gray, A. I. (2008). Cassane diterpenoids from Lonchocarpus laxiflorus. NATURAL PRODUCT COMMUNICATIONS 3, 5-10.

  PUB | WoS
   
• [19]
  

  2008 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1587398

  Letzel, M., Grützmacher, H. - F., Stein, D., and Grützmacher, H. (2008). Trends in the reactions of gaseous phenyl pnictogen radical cations C6H5EH2 center dot+ (E=N, P, As). DALTON TRANSACTIONS, 3282-3291.

  PUB | DOI | WoS | PubMed | Europe PMC
   
• [18]
  

  2008 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1586095

  Schröder, T., Brodbeck, R., Letzel, M., Mix, A., Schnatwinkel, B., Tonigold, M., Volkmer, D., and Mattay, J. (2008). A self-assembling metallosupramolecular cage based on cavitand-terpyridine subunits. TETRAHEDRON LETTERS 49, 5939-5942.

  PUB | DOI | WoS
   
• [17]
  

  2007 | Report | Veröffentlicht | PUB-ID: 2308810

  Böcker, S., Letzel, M., Lipták, Z., and Pervukhin, A. (2007). Identifying metabolites with integer decomposition techniques, using only their mass spectrometric isotope patterns. Forschungsberichte der Technischen Fakultät, Abteilung Informationstechnik / Universität Bielefeld, Bielefeld: Technical Faculty, Bielefeld University.

  PUB | PDF
   
• [16]
  

  2007 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1630972

  Botta, B., D'Acquarica, F., Nevola, L., Sacco, F., Lopez, Z. V., Zappia, G., Fraschetti, C., Speranza, M., Tafi, A., Caporuscio, F., et al. (2007). Bis(diamido)-bridged basket resorcin[4]arenes as enantioselective receptors for amino acids and amines. European Journal of Organic Chemistry 2007, 5995-6002.

  PUB | DOI | WoS
   
• [15]
  

  2006 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1599664

  Letzel, M., Kirchhoff, D., Grützmacher, H. - F., Stein, D., and Grützmacher, H. (2006). Isomerization and fragmentation reactions of gaseous phenylarsane radical cations and phenylarsanyl cations. A study by tandem mass spectrometry and theoretical calculations. DALTON TRANSACTIONS, 2008-2016.

  PUB | DOI | WoS | PubMed | Europe PMC
   
• [14]
  

  2006 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1596667

  Schäfer, C., Decker, B., Letzel, M., Novara, F., Eckel, R., Ros, R., Anselmetti, D., and Mattay, J. (2006). On the way to supramolecular photochemistry at the single-molecule level. Pure and Applied Chemistry 78, 2247-2259.

  PUB | DOI | WoS
   
• [13]
  

  2006 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1596638

  Rozhenko, A. B., Schoeller, W., Letzel, M., Decker, B., Agena, C., and Mattay, J. (2006). Calixarenes as hosts for ammonium cations: A quantum chemical study and mass-spectrometric investigations. Chemistry. A European Journal 12, 8995-9000.

  PUB | DOI | WoS | PubMed | Europe PMC
   
• [12]
  

  2006 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1599422

  Svelle, S., Bjorgen, M. A., Kolboe, S., Kuck, D., Letzel, M., Olsbye, U., Sekiguchi, O., and Uggerud, E. (2006). Intermediates in the methanol-to-hydrocarbons (MTH) reaction: a gas phase study of the unimolecular reactivity of multiply methylated benzenium cations. CATALYSIS LETTERS 109, 25-35.

  PUB | DOI | WoS
   
• [11]
  

  2006 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1598054

  Sekiguchi, O., Letzel, M., Kuck, D., and Uggerud, E. (2006). The unimolecular dissociation of protonated glyoxylic acid: Structure and dynamics of a step-by-step process. INTERNATIONAL JOURNAL OF MASS SPECTROMETRY 255-256, 177-184.

  PUB | DOI | WoS
   
• [10]
  

  2005 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1602825

  Schulte, T., Siegenthaler, K. O., Luftmann, H., Letzel, M., and Studer, A. (2005). Nitroxide-mediated polymerization of N-isopropylacrylamide: Electrospray ionization mass spectrometry, matrix-assisted laser desorption ionization mass spectrometry, and multiple-angle laser light scattering studies on nitroxide-terminated poly-N-isopropylacrylamides. MACROMOLECULES 38, 6833-6840.

  PUB | DOI | WoS
   
• [9]
  

  2005 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1601523

  Rozhenko, A. B., Schoeller, W., Letzel, M., Decker, B., Agena, C., and Mattay, J. (2005). Conformational features of calix[4]arenes with alkali metal cations: A quantum chemical investigation with density functional theory. Journal of Molecular Structure: THEOCHEM 732, 7-20.

  PUB | DOI | WoS
   
• [8]
  

  2004 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1605690

  Mehdizadeh, A., Letzel, M., Klaes, M., Agena, C., and Mattay, J. (2004). Chiral discrimination on the host-guest complexation of resorc[4]arenes with quarternary amines. EUROPEAN JOURNAL OF MASS SPECTROMETRY 10, 649-655.

  PUB | DOI | WoS | PubMed | Europe PMC
   
• [7]
  

  2004 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1607044

  Letzel, M., Decker, B., Rozhenko, A. B., Schoeller, W., and Mattay, J. (2004). Encapsulated guest molecules in the dimer of octahydroxypyridine[4]arene. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 126, 9669-9674.

  PUB | DOI | WoS | PubMed | Europe PMC
   
• [6]
  

  2004 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1953787

  Oley, M., Letzel, M., and Ragg, H. (2004). Inhibition of furin by serpin Spn4A from Drosophila melanogaster. FEBS Letters 577, 165-169.

  PUB | DOI | WoS | PubMed | Europe PMC
   
• [5]
  

  2003 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1610139

  Leitao, E. A., Bittencourt, V. C. B., Haido, R. M. T., Valente, A. P., Peter-Katalinic, J., Letzel, M., de Souza, L. M., and Barreto-Bergter, E. (2003). beta-Galactofuranose-containing O-linked oligosaccharides present in the cell wall peptidogalactomannan of Aspergillus fumigatus contain immunodominant epitopes. GLYCOBIOLOGY 13, 681-692.

  PUB | DOI | WoS | PubMed | Europe PMC
   
• [4]
  

  2002 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1614222

  Letzel, M., Grützmacher, H. - F., Furst, T., Mayer, K. K., and Wiegrebe, W. (2002). Functional group migration in benzaldoxime-O-n-propyl ether radical cation. INTERNATIONAL JOURNAL OF MASS SPECTROMETRY 217, 153-168.

  PUB | DOI | WoS
   
• [3]
  

  2002 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1615393

  Letzel, M., Agena, C., and Mattay, J. (2002). Investigation of homo- and heterodimer alkali metal cation complexes of resorc[4]arenes by electrospray ionization mass spectrometry. JOURNAL OF MASS SPECTROMETRY 37, 63-68.

  PUB | DOI | WoS | PubMed | Europe PMC
   
• [2]
  

  2002 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1615079

  Müller, A., Diemann, E., Shah, S. Q. N., Kuhlmann, C., and Letzel, M. (2002). Soccer-playing metal oxide giant spheres: a first step towards patterning structurally well defined nano-object collectives. CHEMICAL COMMUNICATIONS, 440-441.

  PUB | DOI | WoS | PubMed | Europe PMC
   
• [1]
  

  2001 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1616873

  Letzel, M., Agena, C., and Mattay, J. (2001). Calibration of electrospray mass spectrometers with rccc-2,8,14,20-tetra-n-octyl-5,11,17,23-tetrahydroxyresorc[4]arene in the high mass range up to m/z 6000. EUROPEAN JOURNAL OF MASS SPECTROMETRY 7, 35-38.

  PUB | DOI | WoS