The Effect of Molecular Vibrations on the Binding of a Positron to Polyatomic Molecules

2016 ◽  
pp. 63-75
Author(s):  
Yukiumi Kita ◽  
Masanori Tachikawa
Keyword(s):  
Polyatomic Molecules ◽  
Molecular Vibrations

Tentatively Standardized Symmetry Coordinates for Vibrations of Polyatomic Molecules Part III. Symmetrical X2Y4 Models, with some Related WX2Y4 and W2X2Y4

1969 ◽  
Vol 24 (4) ◽  
pp. 643-648 ◽  
Author(s):  
B. N. Cyvin ◽  
S. J. Cyvin ◽  
G. Hagen ◽  
I. Elvebredd ◽  
J. Brünvoll
Keyword(s):  
Polyatomic Molecules ◽  
Molecular Vibrations ◽  
Symmetry Coordinates ◽  
Symmetry Species ◽  
Complete Sets

Abstract A theoretic treatment is given for the planar ethylene-like (D2h) model, the corresponding twisted (right-angled) model (D2d), and the general case of D2 symmetry. The correlations between the various symmetry species which pertain to the molecular vibrations of the considered models are explained. Complete sets of symmetry coordinates are proposed. The G matrix is given for the general D2 model. Also the various types of Coriolis couplings are discussed, including the relationships between Cα elements involving the degenerate a and b species in the twisted (D0) model. Some of the most im portant Cα elements are listed. Sets of symmetry coordinates are also given for the allene (D2d) and butatriene (D2h) type models.

Nonlinear Coordinate Transformations for Vibrations of Simple Polyatomic Molecules, Using the Cihla-Pliva Formalism

1966 ◽  
Vol 21 (10) ◽  
pp. 1618-1627 ◽  
Author(s):  
S. J. Cyvin
Keyword(s):  
Polyatomic Molecules ◽  
The Other ◽  
Molecular Vibrations ◽  
Coordinate Transformations ◽  
Systematic Treatment ◽  
Algebraic Expressions ◽  
Internal Coordinates ◽  
Electronic Computers

Nonlinear coordinate transformations are considered for the molecular vibrations of the bent symmetrical XY2 and tetrahedral Z4 models. Algebraic expressions are given for internal coordinates as expanded through cubic terms, using a method due to CIHLA and PLÍVA. The method is compared to other approaches, viz. those of MORINO et al. on one hand, and PARISEAU et al. on the other. A conclusions is given in favour of the CIHLA-PLÍVA method as regard to a systematic treatment of polyatomic molecules. A similar conclusion applies also to the connected type of calculations where electronic computers are employed.

Tentatively Standardized Symmetry Coordinates for Vibrations of Polyatomic Molecules

1970 ◽  
Vol 25 (3) ◽  
pp. 363-367 ◽  
Author(s):  
S. J. Cyvin ◽  
G. Hägen ◽  
B. N. Cyvin
Keyword(s):  
Polyatomic Molecules ◽  
Molecular Vibrations ◽  
Atomic Models ◽  
Symmetry Coordinates

Twelve six-atomic models are treated as a part of the work on tentatively standardized symmetry coordinates of molecular vibrations

Collective hyperspherical coordinates for polyatomic molecules and clusters

2000 ◽  
Vol 98 (21) ◽  
pp. 1763-1770 ◽  
Author(s):  
Vincenzo Aquilanti, Andrea Beddoni, Simonett
Keyword(s):  
Polyatomic Molecules ◽  
Hyperspherical Coordinates

Molecular vibrations of complex with trigonal ligands

1979 ◽  
Vol 76 ◽  
pp. 475-485 ◽  
Author(s):  
Alain J. P. Alix ◽  
Michel Manfait ◽  
Bjorg N. Cyvin ◽  
Sven J. Cyvin ◽  
Benjamin J. Van der Veken ◽  
...  
Keyword(s):  
Molecular Vibrations

Polyatomic molecules in a strong infrared field

1981 ◽  
Vol 134 (5) ◽  
pp. 45 ◽  
Author(s):  
V.S. Letokhov ◽  
A.A. Makarov
Keyword(s):  
Polyatomic Molecules
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