Autor: Kisiel, Z. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Observation and Properties of the van der Waals Dimer Ar···HCCCN Produced in Electrical Discharge
Autorzy:: Desyatnyk, O.
Kosarzewski, J.
Kisiel, Z.
Powiązania:: https://bibliotekanauki.pl/articles/2036980.pdf
Data publikacji:: 2003-11
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 weakly bound van der Waals dimer between a molecule of cyanoacetylene and an argon atom was observed by rotational spectroscopy of supersonic expansion. Cyanoacetylene was generated in situ from vinyl cyanide precursor by means of a high voltage discharge just downstream of the expansion nozzle. Both $\text{}^{b}$R- and $\text{}^{b}$Q-type rotational transitions were measured and rotational, centrifugal distortion, and nuclear quadrupole splitting constants were determined. Analysis of the data shows that ground state geometry of the dimer is characterised by R$\text{}_{cm}$=3.65Å andθ=94.9º, with the Ar atom shifted from the position above the cyanoacetylene centre of mass in the direction of the CN group.
Źródło:: Acta Physica Polonica A; 2003, 104, 5; 415-424
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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