PUB - Publikationen an der Universität Bielefeld

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• [31]
  

  2014 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 2677434

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

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

  2013 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 2578727

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

  PUB | DOI | WoS
   
• [29]
  

  2012 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 2501810

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

  PUB | DOI | WoS | PubMed | Europe PMC
   
• [28]
  

  2012 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 2474444

  Cyclochiral resorcin[4]arenes as effective enantioselectors in the gas phase
  Fraschetti C, Letzel M, Paletta M, Mattay J, Speranza M, Filippi A, Aschi M, Rozhenko AB (2012)
  Journal of Mass Spectrometry 47(1): 72-78.

  PUB | DOI | WoS | PubMed | Europe PMC
   
• [27]
  

  2012 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 2453619

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

  PUB | DOI | WoS
   
• [26]
  

  2011 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 2094264

  Unprecedented gas-phase chiroselective logic gates
  Botta B, Fraschetti C, D'Acquarica I, Sacco F, Mattay J, Letzel M, Speranza M (2011)
  Organic & Biomolecular Chemistry 9(6): 1717-1719.

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

  2010 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1795835

  Stereoselective Synthesis of Benzylated Prodelphinidins and Their Diastereomers with Use of the Mitsunobu Reaction in the Preparation of Their Gallocatechin Precursors
  Krohn K, Ahmed I, John M, Letzel M, Kuck D (2010)
  EUROPEAN JOURNAL OF ORGANIC CHEMISTRY 2010(13): 2544-2554.

  PUB | DOI | WoS
   
• [24]
  

  2009 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1589018

  Gas-Phase Enantioselectivity of Chiral N-Linked Peptidoresorc[4]arene Isomers toward Dipeptides
  Botta B, Fraschetti C, D'Acquarica I, Speranza M, Novara FR, Mattay J, Letzel M (2009)
  Journal of Physical Chemistry A 113(52): 14625-14629.

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

  2009 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1634738

  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
  Sekiguchi O, Meyer V, Letzel M, Kuck D, Uggerud E (2009)
  EUROPEAN JOURNAL OF MASS SPECTROMETRY 15(5): 167-181.

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

  2009 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1634276

  Interactions of vinca alkaloid subunits with chiral amido[4]resorcinarenes: a dynamic, kinetic, and spectroscopic study
  Botta B, Fraschetti C, Novara FR, Tafi A, Sacco F, Mannina L, Sobolev AP, Mattay J, Letzel M, Speranza M (2009)
  Organic & Biomolecular Chemistry 7(9): 1798-1806.

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

  2008 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1636725

  A kinetic study of guest displacement reactions on a host-guest complex with a photoswitchable calixarene
  Letzel M, Schäfer C, Novara FR, Speranza M, Rozhenko AB, Schoeller W, Mattay J (2008)
  Journal of Mass Spectrometry 43(11): 1553-1564.

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

  2008 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1592768

  Cassane diterpenoids from Lonchocarpus laxiflorus
  Igoli JO, Onyiriuka SO, Letzel M, Nwaji MN, Gray AI (2008)
  NATURAL PRODUCT COMMUNICATIONS 3(1): 5-10.

  PUB | WoS
   
• [19]
  

  2008 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1587398

  Trends in the reactions of gaseous phenyl pnictogen radical cations C6H5EH2 center dot+ (E=N, P, As)
  Letzel M, Grützmacher H-F, Stein D, Grützmacher H (2008)
  DALTON TRANSACTIONS (25): 3282-3291.

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

  2008 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1586095

  A self-assembling metallosupramolecular cage based on cavitand-terpyridine subunits
  Schröder T, Brodbeck R, Letzel M, Mix A, Schnatwinkel B, Tonigold M, Volkmer D, Mattay J (2008)
  TETRAHEDRON LETTERS 49(41): 5939-5942.

  PUB | DOI | WoS
   
• [17]
  

  2007 | Report | Veröffentlicht | PUB-ID: 2308810

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

  PUB | PDF
   
• [16]
  

  2007 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1630972

  Bis(diamido)-bridged basket resorcin[4]arenes as enantioselective receptors for amino acids and amines
  Botta B, D'Acquarica F, Nevola L, Sacco F, Lopez ZV, Zappia G, Fraschetti C, Speranza M, Tafi A, Caporuscio F, Letzel M, et al. (2007)
  European Journal of Organic Chemistry 2007(36): 5995-6002.

  PUB | DOI | WoS
   
• [15]
  

  2006 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1599664

  Isomerization and fragmentation reactions of gaseous phenylarsane radical cations and phenylarsanyl cations. A study by tandem mass spectrometry and theoretical calculations
  Letzel M, Kirchhoff D, Grützmacher H-F, Stein D, Grützmacher H (2006)
  DALTON TRANSACTIONS (16): 2008-2016.

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

  2006 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1596667

  On the way to supramolecular photochemistry at the single-molecule level
  Schäfer C, Decker B, Letzel M, Novara F, Eckel R, Ros R, Anselmetti D, Mattay J (2006)
  Pure and Applied Chemistry 78(12): 2247-2259.

  PUB | DOI | WoS
   
• [13]
  

  2006 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1596638

  Calixarenes as hosts for ammonium cations: A quantum chemical study and mass-spectrometric investigations
  Rozhenko AB, Schoeller W, Letzel M, Decker B, Agena C, Mattay J (2006)
  Chemistry. A European Journal 12(35): 8995-9000.

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

  2006 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1599422

  Intermediates in the methanol-to-hydrocarbons (MTH) reaction: a gas phase study of the unimolecular reactivity of multiply methylated benzenium cations
  Svelle S, Bjorgen MA, Kolboe S, Kuck D, Letzel M, Olsbye U, Sekiguchi O, Uggerud E (2006)
  CATALYSIS LETTERS 109(1-2): 25-35.

  PUB | DOI | WoS
   
• [11]
  

  2006 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1598054

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

  PUB | DOI | WoS
   
• [10]
  

  2005 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1602825

  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
  Schulte T, Siegenthaler KO, Luftmann H, Letzel M, Studer A (2005)
  MACROMOLECULES 38(16): 6833-6840.

  PUB | DOI | WoS
   
• [9]
  

  2005 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1601523

  Conformational features of calix[4]arenes with alkali metal cations: A quantum chemical investigation with density functional theory
  Rozhenko AB, Schoeller W, Letzel M, Decker B, Agena C, Mattay J (2005)
  Journal of Molecular Structure: THEOCHEM 732(1-3): 7-20.

  PUB | DOI | WoS
   
• [8]
  

  2004 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1605690

  Chiral discrimination on the host-guest complexation of resorc[4]arenes with quarternary amines
  Mehdizadeh A, Letzel M, Klaes M, Agena C, Mattay J (2004)
  EUROPEAN JOURNAL OF MASS SPECTROMETRY 10(1): 649-655.

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

  2004 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1607044

  Encapsulated guest molecules in the dimer of octahydroxypyridine[4]arene
  Letzel M, Decker B, Rozhenko AB, Schoeller W, Mattay J (2004)
  JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 126(31): 9669-9674.

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

  2004 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1953787

  Inhibition of furin by serpin Spn4A from Drosophila melanogaster
  Oley M, Letzel M, Ragg H (2004)
  FEBS Letters 577(1-2): 165-169.

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

  2003 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1610139

  beta-Galactofuranose-containing O-linked oligosaccharides present in the cell wall peptidogalactomannan of Aspergillus fumigatus contain immunodominant epitopes
  Leitao EA, Bittencourt VCB, Haido RMT, Valente AP, Peter-Katalinic J, Letzel M, de Souza LM, Barreto-Bergter E (2003)
  GLYCOBIOLOGY 13(10): 681-692.

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

  2002 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1614222

  Functional group migration in benzaldoxime-O-n-propyl ether radical cation
  Letzel M, Grützmacher H-F, Furst T, Mayer KK, Wiegrebe W (2002)
  INTERNATIONAL JOURNAL OF MASS SPECTROMETRY 217(1-3): 153-168.

  PUB | DOI | WoS
   
• [3]
  

  2002 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1615393

  Investigation of homo- and heterodimer alkali metal cation complexes of resorc[4]arenes by electrospray ionization mass spectrometry
  Letzel M, Agena C, Mattay J (2002)
  JOURNAL OF MASS SPECTROMETRY 37(1): 63-68.

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

  2002 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1615079

  Soccer-playing metal oxide giant spheres: a first step towards patterning structurally well defined nano-object collectives
  Müller A, Diemann E, Shah SQN, Kuhlmann C, Letzel M (2002)
  CHEMICAL COMMUNICATIONS (5): 440-441.

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

  2001 | Zeitschriftenaufsatz | Veröffentlicht | PUB-ID: 1616873

  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
  Letzel M, Agena C, Mattay J (2001)
  EUROPEAN JOURNAL OF MASS SPECTROMETRY 7(1): 35-38.

  PUB | DOI | WoS