Temat: 33.15.Pw - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Nuclear Quadrupole Coupling Tensor of Ch$\text{}_{2}$Cl$\text{}_{2}$: Comparison of Quadrupolar and Structural Angles in Methylene Halides
Autorzy:: Kisiel, Z.
Kosarzewski, J.
Pszczółkowski, L.
Powiązania:: https://bibliotekanauki.pl/articles/1967844.pdf
Data publikacji:: 1997-09
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 33.15.Dj
33.15.Pw
33.20.Bx
Opis:: Nuclear quadrupole hyperfine structure in 2$\text{}_{1,2}$ ← 3$\text{}_{0,3}$ and 1$\text{}_{1,1}$ ← 2$\text{}_{0,2}$ rotational transitions of CH$\text{}_{2}^{35}$Cl$\text{}_{2}$ at 9.2 and 15.9 GHz, respectively, was measured with a newly constructed pulsed supersonic beam, cavity Fourier transform microwave spectrometer. All components of nuclear quadrupole splitting tensors of the chlorine nuclei in inertial and in principal quadrupole axes were determined. It is shown that in methylene halide molecules nuclear quadrupole information leads to a value for ∠(XCX) which is systematically larger than ∠(XCX) defined by the positions of the nuclei. Some novel features of the spectrometer are also described.
Źródło:: Acta Physica Polonica A; 1997, 92, 3; 507-516
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Rotational Spectrum of the Most Abundant Isotopomers of the Van der Waals Dimer N$\text{}_{2}$···HBr
Autorzy:: Kisiel, Z.
Pietrewicz, B. A.
Pszczółkowski, L.
Powiązania:: https://bibliotekanauki.pl/articles/2030327.pdf
Data publikacji:: 2002-02
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 33.15.Dj
33.15.Mt
33.15.Pw
33.20.Bx
36.40.Mr
Opis:: The rotational spectrum of the two most abundant isotopomers of the weakly bound dimer between dinitrogen and hydrogen bromide, $\text{}^{14}$N$\text{}_{2}$···H$\text{}^{79}$Br and $\text{}^{14}$N$\text{}_{2}$···H$\text{}^{81}$Br, has been measured for the first time. The three lowest J transitions, at frequencies from 2 to 8 GHz, have been studied at conditions of supersonic expansion. The complicated hyperfine splitting structure arising from the three non-equivalent quadrupolar nuclei has been assigned and fitted. The resulting spectroscopic constants and the derived molecular quantities are compared with those for other isotopomers, as well as with experimental and calculated results for other linear dimers involving dinitrogen. A revised value for the nuclear quadrupole splitting constant for free nitrogen molecule,ρ(N)=-5.3(1) MHz, is also derived.
Źródło:: Acta Physica Polonica A; 2002, 101, 2; 231-242
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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