|
1
|
Ciommer B, Frenking G, Schwarz H. Massenspektrometrische Untersuchung von Stickstoffverbindungen, XXXI
1,2)
Experimentelle und theoretische Untersuchungen zur dissoziativen Ionisierung von α‐nitro‐ und α‐halogen substituierten Acetamiden. Pseudo‐einstufige Zerfallsprozesse von Radikalkationen in der Gasphase. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/cber.19811140426] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Bernhard Ciommer
- Institut für Organische Chemie der Technischen Universität Berlin, Straße des 17. Juni 135 D‐1000 Berlin 12, W.‐Germany
| | - Gernot Frenking
- Institut für Organische Chemie der Technischen Universität Berlin, Straße des 17. Juni 135 D‐1000 Berlin 12, W.‐Germany
| | - Helmut Schwarz
- Institut für Organische Chemie der Technischen Universität Berlin, Straße des 17. Juni 135 D‐1000 Berlin 12, W.‐Germany
| |
Collapse
|
|
2
|
Intermediates in the Methanol-to-hydrocarbons (MTH) Reaction: A Gas Phase Study of the Unimolecular Reactivity of Multiply Methylated Benzenium Cations. Catal Letters 2006. [DOI: 10.1007/s10562-006-0052-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
|
3
|
Budzikiewicz H, Grigsby RD. Half protons or doubly charged protons? The history of metastable ions. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2004; 15:1261-1265. [PMID: 15337506 DOI: 10.1016/j.jasms.2004.06.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2004] [Revised: 06/06/2004] [Accepted: 06/07/2004] [Indexed: 05/24/2023]
Abstract
The history of metastable ions is intertwined with that of ions formed by collision-induced dissociation (CID), and frequently the genesis of the two ion types cannot be strictly separated. Originally, metastable ions were considered a curiosity or even a nuisance, being responsible for "humps" in the base line of the recorded mass spectra. In their heyday metastable ions were recognized as having importance for establishing fragmentation sequences and for distinguishing between isomeric ion structures. Today, in many respects the utility of metastable ions has been superseded by a systematic application of CID techniques; yet the evaluation of their shape is still of importance for questions of reaction energies and ion thermochemistry.
Collapse
|
|
4
|
Weiske T, Halim H, Schwarz H. CC-Spaltungen bei ionisierten Carbonsäuren als Umkehrung der [1,4]-Addition von Alkyl-Radikalen an protonierte α,β-ungesättigte Carbonsäuren. Zur Rolle von Enol-Radikalkationen als reaktive Zwischenstufen bei Isomerisierungs-/Dissoziationsprozessen in der Gasphase. ACTA ACUST UNITED AC 1985. [DOI: 10.1002/cber.19851180211] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
|
5
|
Weiske T, Schwarz H. Pseudo-einstufige CC-Spaltungen beim Zerfall von ionisierten Carbonsäuren. Radikaltypische Reaktionen in der Massenspektrometrie. ACTA ACUST UNITED AC 1983. [DOI: 10.1002/cber.19831160135] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
|
6
|
Chapter 10 Amino acids and oligopeptides. ACTA ACUST UNITED AC 1983. [DOI: 10.1016/s0301-4770(08)61341-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
|
|
7
|
Würthwein EU, Halim H, Schwarz H, Nibbering NMM. Massenspektrometrische Untersuchung von Stickstoff-Verbindungen, XXXV. Phenylsubstituierte 2-Azaallenium-Ionen in der Gasphase. ACTA ACUST UNITED AC 1982. [DOI: 10.1002/cber.19821150725] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
|
8
|
|
|
9
|
Holzmann G, Susilo R, Gmelin R. Collisional activation study of cyclic polysulfides. ACTA ACUST UNITED AC 1982. [DOI: 10.1002/oms.1210170404] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
|
10
|
Steinauer R, Schlunegger UP. Detection of fragment genesis in the mass spectrometer: Amino acid sequence analysis by DADI/MIKE, linked scan and collisional activation mass spectrometry. 6—Peptides containing trifunctional amino acids. ACTA ACUST UNITED AC 1982. [DOI: 10.1002/bms.1200090405] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
|
11
|
Wiegrebe W, Prior S, Mayer KK. Nachweis der Inversion bei der Umsetzung optisch aktiver 1-(0-Hydroxymethyl-benzyl)-N-methyl-1,2,3,4-tetrahydroisochinoline zu 3-Phenylisochromanen. Arch Pharm (Weinheim) 1982. [DOI: 10.1002/ardp.19823150312] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
|
12
|
Franke W, Frenking G, Schwarz H, Wolfschütz R. Zur Kohlenstoff-Äquilibrierung in cyclischen C6H11+-Kationen in der Gasphase und zum Mechanismus der unimolekularen Ethylen-Abspaltung. ACTA ACUST UNITED AC 1981. [DOI: 10.1002/cber.19811141211] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
|
13
|
Maier G, Pfriem S, Malsch KD, Kalinowski HO, Dehnicke K. Kleine Ringe, 39: Spektroskopische Eigenschaften von Tetra-tert-butyltetrahedran. ACTA ACUST UNITED AC 1981. [DOI: 10.1002/cber.19811141219] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
|
14
|
|
|
15
|
Franke W, Schwarz H, Thies H, Chandrasekhar J, von Rague Schleyer P, Hehre WJ, Saunders M, Walker G. Entartete Isomerisierung via Kohlenstoff-Platzwechsel beim Cyclopentyl-Kation in der Gasphase. Experimenteller und theoretischer Nachweis der Existenz eines pyramidalen C5H9+-Kations bei der unimolekularen Ethylen-Eliminierung. ACTA ACUST UNITED AC 1981. [DOI: 10.1002/cber.19811140813] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
|
16
|
Bradley CV, Howe I, Beynon JH. Sequence analysis of underivatized peptides by negative ion chemical ionization and collision induced dissociation. ACTA ACUST UNITED AC 1981. [DOI: 10.1002/bms.1200080207] [Citation(s) in RCA: 36] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
|
17
|
Mayer KK, Poettinger T, Wiegrebe W. ortho-Effekte in 1-(o-Aminomethylaryl)-buten(1)-3-onen und ihren Hydrierungsprodukten, 5. Mitt. MS-Untersuchungen an Modellsubstanzen des Alkaloids Vinceten. Arch Pharm (Weinheim) 1981. [DOI: 10.1002/ardp.19813140813] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
|
18
|
Mayer KK, Poettinger T, Wiegrebe W. Ortho-Effekte in 1-(o-Aminomethylaryl)-buten(1)-3-onen und ihren Hydrierungsprodukten, 4. Mitt. MS-Untersuchungen an Modellsubstanzen des Alkaloids Vinceten. Arch Pharm (Weinheim) 1981. [DOI: 10.1002/ardp.19813140811] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
|
19
|
Dannhardt G, Mayer KK. Massenspektrometrische Untersuchungen an hydrierten Pyrrolen, 2. Mitt. Ungewöhnliche H-Wanderung mit 8-gliedrigem Übergangszustand bei Δ1-Pyrrolinen. Arch Pharm (Weinheim) 1981. [DOI: 10.1002/ardp.19813140909] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
|
20
|
Mayer KK, Poettinger T, Wiegrebe W. Ortho-Effekte in 1-(o-Aminomethylaryl)-buten(1)-3-onen und ihren Hydrierungsprodukten, 1. Mitt. o-Aminomethyl-naphthalacetone. Arch Pharm (Weinheim) 1981. [DOI: 10.1002/ardp.19813140602] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
|
21
|
Ruban G, Zobel D, Koßmehl G, Nuck R. Synthese und Kristallstruktur von (E)-α-(Trifluormethyl)stilben. ACTA ACUST UNITED AC 1980. [DOI: 10.1002/cber.19801131030] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
|
22
|
Razakov R, Abdullaev AA, Abduvakhabov AA, Aslanov KA, Sadykov AS. Mass-spectrometric study of some cholinesterase substrates. ACTA ACUST UNITED AC 1980. [DOI: 10.1007/bf00950577] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
|
23
|
Holzmann G, Koßmehl G. Application of linked scans in pyrolysis mass spectrometry of polymers. ACTA ACUST UNITED AC 1980. [DOI: 10.1002/oms.1210150705] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
|
24
|
Franke W, Schwarz H, Thies H, Chandrasekhar J, Schleyer PVR, Hehre WJ, Saunders M, Walker G. Experimenteller und theoretischer Nachweis der entarteten Isomerisierung via Kohlenstoff-Platzwechsel beim Cyclopentylkation in der Gasphase. Angew Chem Int Ed Engl 1980. [DOI: 10.1002/ange.19800920630] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
|
25
|
Franke W, Schwarz H, Thies H, Chandrasekhar J, Schleyer PVR, Hehre WJ, Saunders M, Walker G. An Experimental and Theoretical Study of the Degenerate Carbon Skeleton Isomerization of the Cyclopentyl Cation in the Gas Phase. ACTA ACUST UNITED AC 1980. [DOI: 10.1002/anie.198004851] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
|
26
|
Bertram J. [Mass spectrometric measurement technic]. PHARMAZIE IN UNSERER ZEIT 1980; 9:81-92. [PMID: 7403200 DOI: 10.1002/pauz.19800090303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
|
27
|
Steinauer R, Walther H, Schlunegger UP. Nachweis von Fragment-Genesen im Massenspektrometer. 5. Mitteilung Aminos�ure-Sequenzanalyse: Vergleich der DADI/MIKE-, ?linked scan?- und Kollisionsaktivierungs-Spektrometrie an aliphatischen Aminos�uren. Helv Chim Acta 1980. [DOI: 10.1002/hlca.19800630308] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
|
28
|
Wolfschütz R, Schwarz H. Protoniertes biphenyl durch chemische ionisation von benzol-struktur des [2MH]+-ions von benzol. ACTA ACUST UNITED AC 1980. [DOI: 10.1016/0020-7381(80)85007-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
|
29
|
|
|
30
|
|
|
31
|
Rehse K, Tenczer J. Zur Tautomerie und Cyclisierung warfarinanaloger 1,2-Benzoxathiin-2,2-dioxide. Arch Pharm (Weinheim) 1980. [DOI: 10.1002/ardp.19803131005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
|
32
|
|
|
33
|
Schmidt J, Huneck S. Mass spectroscopy of natural products. VI—Localization of functional groups in the hopane skeleton. ACTA ACUST UNITED AC 1979. [DOI: 10.1002/oms.1210141206] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
|
34
|
Schaldach B, Grützmacher H. Kinetic energy release and position of the transition state during the intramolecular substitution of ionized benzalacetones. ACTA ACUST UNITED AC 1979. [DOI: 10.1016/0020-7381(79)83028-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
|
35
|
Schaldach B, Grützmacher H. Formation of 2-methylbenzopyrylium ions from the molecular ions of benzalacetones. ACTA ACUST UNITED AC 1979. [DOI: 10.1016/0020-7381(79)83027-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
|
36
|
Budzikiewicz H, Faber L, Herrmann EG, Perrollaz FF, Schlunegger UP, Wiegrebe W. Vinceten, ein Benzopyrroloisochinolin-Alkaloid, ausCynanchum vincetoxicum (L.) Pers. (Asclepiadaceae). ACTA ACUST UNITED AC 1979. [DOI: 10.1002/jlac.197919790815] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
|
37
|
Engelfried C, Ludwig K, Jänichen H, Konig WA, König WA. Reaktionen von Aminosäuren und Peptiden, II. Darstellung von 2-Aminooxazolderivaten aus Peptidamiden mit Hexafluoracetanhydrid. European J Org Chem 1979. [DOI: 10.1002/jlac.197919790708] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
|
38
|
Holzmann G, Krieg B, Lautenschläger H, Konieczny P. The mass spectra of alkyl- and phenyl-4-imidazolin-2-ones. J Heterocycl Chem 1979. [DOI: 10.1002/jhet.5570160530] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
|
39
|
Dannhardt G, Mayer KK. Massenspektrometrische Untersuchungen an hydrierten Pyrrolen: Elektronenstoß-induzierter Zerfall von 2-Alkyl-Δ1-pyrrolinen und funktionalisierten Derivaten. Arch Pharm (Weinheim) 1979. [DOI: 10.1002/ardp.19793120608] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
|
40
|
Schwarz H, Franke W, Chandrasekhar J, von R. Schleyer P. Eckenprotoniertes cyclopropan in der gasphase: kopplung von unimolekularer [1.1]-H2-eliminierung aus C3H7+ und ringöffnung des cyclopropylkations. Tetrahedron 1979. [DOI: 10.1016/0040-4020(79)85056-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
|
41
|
Schwarz H, Wesdemiotis C, Reetz MT. Massenspektrometrische untersuchungen zu dyotropen umlagerungen. J Organomet Chem 1978. [DOI: 10.1016/s0022-328x(00)92376-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
|
42
|
|
|
43
|
|
|
44
|
Wesdemiotis C, Schwarz H. CH3-Eliminierung aus dem Radikalkation von Isobuttersäure-methylester: Schnelle CC-Spaltung nach geschwindigkeitsbestimmender H-Wanderung. Angew Chem Int Ed Engl 1978. [DOI: 10.1002/ange.19780900919] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
|
45
|
Wesdemiotis C, Schwarz H. Elimination of CH3 from the Radical Cation of Methyl Isobutyrate: Fast C?C Cleavage after Rate-Determining H-Migration. ACTA ACUST UNITED AC 1978. [DOI: 10.1002/anie.197806781] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
|
46
|
Knabe J, Brill CW. [Chiral pyrazolidinediones, I: regioselective condensation of cyanoacetates with phenylhydrazine (author's transl)]. Arch Pharm (Weinheim) 1978; 311:446-53. [PMID: 666542 DOI: 10.1002/ardp.19783110512] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
|
47
|
Wiegrebe W, Schlunegger UP, Perrollaz FF, Riedl P. [Fragmentation reactions of naphthalene derivatives with C4 side-chains (author's transl)]. Arch Pharm (Weinheim) 1978; 311:328-40. [PMID: 655804 DOI: 10.1002/ardp.19783110410] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
|
48
|
|
|
49
|
Keck H, Kuchen W. MASSENSPEKTROMETRISCHE UNTERSUCHUNGEN AN ORGANOPHOSPHORVERBINDUNGEN I Zum Massenspektrometrischen Fragmentierungsverhalten von Dithio- und Thiophosphonsäureanhydriden. ACTA ACUST UNITED AC 1978. [DOI: 10.1080/03086647808076561] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
|
50
|
Zeman A, Bartl P, Schaaff A, Christ V. Analyse synthetischer Flugturbinenöle durch Gas-Chromatographie — Massenspektrometrie. ACTA ACUST UNITED AC 1978. [DOI: 10.1007/bf00468857] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|