ChemInform Abstract: THEORY AND APPLICATION OF PHOTOELECTRON SPECTROSCOPY. PART 91. CONFORMATIONAL L STUDY OF 1,2-DIMETHYLHEXAHYDROPYRIDAZINE BY VARIABLE-TEMPERATURE PHOTOELECTRON SPECTROSCOPY

Photoelectron spectra at variable temperatures demonstrate that the rate of thermal isomerization of pyrazoline-5-thione (1a) into methylthiopyrazole(s) in the gaseous phase is metal catalysed. Similar isomerizations of triazolethione (2a and 3a) are at best only slightly so.Furthermore, photoelectron spectra and MNDO calculations show that gaseous methylthiopyrazoles (1b and 1c) and methylthiotriazoles (2b and 2c) exist predominantly in planar form for the b isomer and in nonplanar form for the c isomer. The ΔH0 for the rotameric equilibria is 2.7–4.2 kJ•mol−1.

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ChemInform Abstract: THEORY AND APPLICATION OF PHOTOELECTRON SPECTROSCOPY PART 31, THROUGH-CONJUGATION THROUGH THE SULFONE GROUP IN 2,5-DI-TERT.-BUTYLTHIOPHENE 1,1-DIOXIDE

Chemischer Informationsdienst ◽

10.1002/chin.197412063 ◽

1974 ◽

Vol 5 (12) ◽

pp. no-no

Author(s):

C. MUELLER ◽

A. SCHWEIG ◽

W. L. MOCK

Keyword(s):

Photoelectron Spectroscopy ◽

Abstract Theory ◽

Sulfone Group

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Kinetic measurements by variable-temperature photoelectron spectroscopy. The kinetic rate of the bicyclopentadiene to cyclopentadiene reaction in the medium-vacuum region

Journal of Electron Spectroscopy and Related Phenomena ◽

10.1016/0368-2048(80)80036-3 ◽

1980 ◽

Vol 19 (1) ◽

pp. 91-99 ◽

Cited By ~ 1

Author(s):

Armin Schweig ◽

Nikolaus Thon

Keyword(s):

Photoelectron Spectroscopy ◽

Variable Temperature ◽

Kinetic Measurements ◽

Kinetic Rate ◽

Vacuum Region ◽

Medium Vacuum

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ChemInform Abstract: THEORY AND APPLICATION OF PHOTOELECTRON SPECTROSCOPY. PART 94. ISOBENZOFULVENE

Chemischer Informationsdienst ◽

10.1002/chin.198216196 ◽

1982 ◽

Vol 13 (16) ◽

Author(s):

G. GROSS ◽

R. SCHULZ ◽

A. SCHWEIG ◽

C. WENTRUP

Keyword(s):

Photoelectron Spectroscopy ◽

Abstract Theory

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ChemInform Abstract: THEORY AND APPLICATIONS OF PHOTOELECTRON SPECTROSCOPY. PART 68. THE DOMINANT ROLE OF HYPERCONJUGATION IN THE 9-OXABICYCLO(4.2.1)NONA-2,4,7-TRIENE SERIES

Chemischer Informationsdienst ◽

10.1002/chin.197701042 ◽

1977 ◽

Vol 8 (1) ◽

pp. no-no

Author(s):

H. SCHMIDT ◽

A. SCHWEIG ◽

A. G. ANASTASSIOU ◽

J. C. WETZEL

Keyword(s):

Photoelectron Spectroscopy ◽

Dominant Role ◽

Abstract Theory

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ChemInform Abstract: THEORY AND APPLICATION OF PHOTOELECTRON SPECTROSCOPY. 88. C11H8 INTERMEDIATES. 4. 2-VINYLIDEN-2H-INDENE

Chemischer Informationsdienst ◽

10.1002/chin.198103170 ◽

1981 ◽

Vol 12 (3) ◽

Author(s):

R. SCHULZ ◽

A. SCHWEIG ◽

C. WENTRUP ◽

H.-W. WINTER

Keyword(s):

Photoelectron Spectroscopy ◽

Abstract Theory

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ChemInform Abstract: THEORY AND USE OF PHOTOELECTRON SPECTROSCOPY. 106. CYCLOALKYLIDENESELENOKETENES, PRODUCTS OF THE PYROLYSIS OF 1,2,3-SELENADIAZOLES - STUDIES WITH TEMPERATURE-DEPENDENT PE (PHOTOELECTRON) SPECTROSCOPY AND MATRIX IR SPECTROSCOPY

Chemischer Informationsdienst ◽

10.1002/chin.198512296 ◽

1985 ◽

Vol 16 (12) ◽

Author(s):

R. SCHULZ ◽

A. SCHWEIG

Keyword(s):

Ir Spectroscopy ◽

Photoelectron Spectroscopy ◽

Abstract Theory ◽

Temperature Dependent ◽

Matrix Ir Spectroscopy

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Cycloalkylidenselenoketene durch Pyrolyse von 1,2,3-Selenadiazolen — Untersuchungen mit der temperaturabhängigen PE-Spektroskopie und Matrix-IR-Spektroskopie [1]

Zeitschrift für Naturforschung B ◽

10.1515/znb-1984-1113 ◽

1984 ◽

Vol 39 (11) ◽

pp. 1536-1540 ◽

Cited By ~ 11

Author(s):

Reinhard Schulz ◽

Armin Schweig

Keyword(s):

Liquid Phase ◽

Ir Spectroscopy ◽

Ir Spectra ◽

Gas Phase ◽

Photoelectron Spectroscopy ◽

Variable Temperature ◽

Matrix Ir Spectroscopy

Abstract The gas-phase pyrolysis of cyclohexeno-1,2,3-selenadiazole and cycloocteno-1,2,3-selenadiazole has been investigated by variable temperature photoelectron spectroscopy and matrix IR spectroscopy. The ring contracted, highly reactive products cyclopentylidenselenoketene (cyclopentylidenmethanselone) and cycloheptylidenselenoketene (cycloheptylidenmethanselone) - which had not been found in liquid phase thermolysis experiments - have been detected. Additionally HeI photoelectron and IR spectra of analogous ketenes and thioketenes are presented for comparative reasons.

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