Fragmentation D'Hétérocycles Sous L'Impact Electronique. Détermination de schémas de fragmentation par la technique C.I.D./M.I.K.E

Air introduction in the second field-free region of a reversed geometry mass spectrometer induces an important number of fragment ions which are recorded by scanning the ESA voltage. These C.I.D./M.I.K.E. spectra [collision induced dissociations/mass-analysed ion Kinetic energy spectral are very characteristic of the structure of the stable ions obtained in a normal magnet current scanning and can be used to derive very quickly fragmentation schemes. Application of this technique in the field of heterocyclic compounds (dihydrotetrazines) is discussed.

[1]  A. Maquestiau,et al.  Spectrométrie de Masse de Pyrazoline‐5‐Ones N1 Substituées. II. 2‐Pyrazoline‐5‐Ones A Structure Fixe et Pyrazoline‐5‐ones Tautomérisables. , 2010 .

[2]  A. Maquestiau,et al.  Spectrométrie de Masse de Pyrazoline‐5‐Ones N1 Substituées. 1. 5‐AlkoXypyrazoles et 3‐Pyrazoline‐5‐Ones A Structures Fixes , 2010 .

[3]  A. Maquestiau,et al.  Fragmentation d'azoles sous l'impact electronique. X—etude de rearrangements cycliques en serie alkylamino-1,2,4-triazole , 1975 .

[4]  R. Cooks,et al.  Collision-induced dissociation of the lower alcohols. A thermochemical study† , 1975 .

[5]  A. Maquestiau,et al.  Mise en évidence des tautomères énoliques des hydroxypyridines dans la source du spectromètre de masse , 1975 .

[6]  K. Levsen.  Isomerisation of hydrocarbon ions:I—Isomeric octanes: Acollisional actiation study , 1975 .

[7]  F. McLafferty,et al.  Metastable ion characteristics. XXXI. Gaseous tropylium, Benzyl, tolyl. and Norbornadienyl cations , 1974 .

[8]  R. Cooks,et al.  Mass spectrometric studies using compounds isotopically labeled at natural abundance. Development from ion kinetic energy spectrometry , 1974 .

[9]  R. Cooks,et al.  A collision chamber for the study of high energy ion molecule reactions at high resolution , 1974 .

[10]  F. McLafferty,et al.  Collisional activation spectra. Gas phase [C12H10O]+˙ and [C12H9O]+ ions from dephenyl ether, diphenyl carbonate, and o‐, m‐ and p‐phenylphenol , 1974 .

[11]  F. McLafferty,et al.  Metastable ion characteristics. XXX. Long-lived benzyl and tolyl cations in the gas phase , 1973 .

[12]  F. McLafferty,et al.  Collisional activation spectra. Behavior of [C3H7O]+ and other [CnH2n+1O]+ ions , 1973 .

[13]  R. Cooks,et al.  A new method for the determination of double and triple ionization potentials of organic ions , 1973 .

[14]  Fred W. McLafferty,et al.  Metastable ion characteristics. XXII. Collisional activation spectra of organic ions , 1973 .

[15]  R. Cooks,et al.  Energy partitioning data as an ion structure probe. Substituted anisoles , 1973 .

[16]  R. Cooks,et al.  Metastable loss of nitrosyl radical from aromatic nitro compounds , 1973 .

[17]  R. Cooks,et al.  Kinetic energy release in ionic fragmentations: Use as an ion structure probe , 1973 .

[18]  R. Flammang,et al.  Fragmentation du 1,2,4‐triazole sous L'impact electronique , 1972 .

[19]  F. McLafferty,et al.  Simple modification of a commercial mass spectrometer for metastable data collection , 1972 .

[20]  R. Cooks,et al.  Kinetic energy loss in collision-induced fragmentations: asymmetric metastable peaks in mass spectra , 1972 .

[21]  K. T. Potts,et al.  Mass spectra of some 1,2,4‐triazole derivatives , 1971 .

[22]  Dudley H. Williams,et al.  The use of deuterium isotope effects in establishing mass spectral fragmentation mechanisms , 1971 .

[23]  J. Occolowitz.  Metastable ion intensities and the comparison of ionic structure , 1969 .

[24]  F. McLafferty,et al.  Minimization of rearrangement reactions in mass spectra by use of collisional activation , 1969 .

[25]  Dudley H. Williams,et al.  Studies in mass spectrometry. XXXI. Comparison of reaction rates in common ions generated via fragmentation and direct ionization , 1968 .

[26]  K. Jennings.  Collision-induced decompositions of aromatic molecular ions , 1968 .

[27]  P. Yates,et al.  Mass spectra of -tetrazines. Reduction to dihydro--tetrazines in the ion source of the mass spectrometer , 1968 .

[28]  Fred W. McLafferty,et al.  Identification of Gaseous Organic Ions by the Use of “Metastable Peaks”1 , 1966 .

[29]  C. Kröger,et al.  Über 1.2.4.-Triazole, VI. Die Kondensation methylsubstituierter Aminoguanidine mit aliphatischen Carbonsäuren , 1964 .

[30]  A. Ritter,et al.  Thermolyse silylierter Tetrazole , 1963 .

[31]  H. Eyring,et al.  Absolute Rate Theory for Isolated Systems and the Mass Spectra of Polyatomic Molecules. , 1952, Proceedings of the National Academy of Sciences of the United States of America.

[32]  E. Hoggarth.  250. Compounds related to thiosemicarbazide. Part I. 3-Phenyl-1 : 2 : 4-triazole derivatives , 1949 .

[33]  E. Müller,et al.  Einwirkung von wasserfreiem Hydrazin auf Nitrile , 1921 .