Zobrazeno 1 - 10
of 235
pro vyhledávání: '"Helmut Dreizler"'
Publikováno v:
The Journal of Physical Chemistry A. 111:11801-11808
The microwave spectra of 4-pentyn-1-ol, HO(CH2)3C triple bond CH, and one deuterated species (DO(CH2)3C triple bond CH) have been investigated in a Stark spectrometer in the 17.5-80 GHz spectral region at about 0 degrees C, as well as in a pulsed-noz
Publikováno v:
Journal of Molecular Structure. 825:1-19
Continuing earlier work on phenylacetylene (PhAc), we have measured the molecular rotational spectra of 24 isotopologues of the van-der-Waals complex phenylacetylene–argon (PhAc–Ar) by molecular beam Fourier transform microwave spectroscopy. All
Autor:
J. C. Lopez, Helmut Dreizler, María Teresa Rubio Sanz, Susana Blanco, JoséL. Alonso, Alberto Lesarri
Publikováno v:
Journal of Molecular Spectroscopy. 227:202-205
Publikováno v:
Journal of Molecular Structure. 698:1-24
We report a reinvestigation of the rotational spectrum of phenylacetylene (PhA, ethynylbenzene) by molecular beam Fourier transform microwave spectroscopy measuring the spectra of 39 isotopomers. All atomic positions could be singly substituted or in
Autor:
Helmut Dreizler, José L. Alonso, Santiago Mata, M. Eugenia Sanz, Alberto Lesarri, Juan C. López, Susana Blanco
Publikováno v:
Chemical Physics Letters. 375:355-363
The methylfluoroacetylenes CH3–(CC)2–F and CH3–(CC)3–F have been generated for the first time in a pulsed-discharge nozzle and characterized by molecular beam Fourier transform microwave spectroscopy in the 5–26 GHz frequency range. T
Autor:
Helmut Dreizler
Publikováno v:
Structural Chemistry. 14:143-149
It is shown that traceless tensors as used in the interpretation of hyperfine structures in rotational spectra can be represented by hyperboloids. This is in analogy to the inertial moment ellipsoids. The potential surface surrounding a quadrupole nu
Autor:
D. H. Sutter, Helmut Dreizler
Publikováno v:
Zeitschrift für Naturforschung A. 55:695-705
A molecular beam Fourier transform microwave spectrometer, designed for the study of chemical reactions within electrical discharges, is described in detail. Applications include the production of carbonyl fluoride, ketene, acetic acid, and difluoroc
Autor:
Helmut Dreizler, N. Hansen
Publikováno v:
Zeitschrift für Naturforschung A. 55:481-485
We have performed an investigation of the internal rotation of the methyl group in trans-cis ethyl vinyl ether by using molecular beam-Fourier transform Microwave (MB-FTMW) spectroscopy. Rotational spectra (up to J = 20) were recorded in the frequenc
Publikováno v:
Journal of Molecular Structure. :387-391
The microwave spectrum of t -butyl mercaptan, (CH 3 ) 3 CSH, in its vibrational ground state has been measured in the range from 8 to 26 GHz, and 542 transitions were newly assigned. The spectrum was analysed using the combined axis method. The three
Publikováno v:
Zeitschrift für Naturforschung A. 54:524-538
We report the assignment and analysis of all stable monosubstituted isotopomers of trifluoroacetic acid. The 13C and 18O isotopomers were observed in natural abundance. The rotational constants and quartic centrifugal constants are presented. The rot