Journal ArticleDOI
The Jahn–Teller instability of fivefold degenerate states in icosahedral molecules
Arnout Ceulemans,P.W. Fowler +1 more
TLDR
In this article, the authors analyzed the linear H⊗(g⊕2h) Jahn-Teller problem with respect to the instability of icosahedral molecules in fivefold degenerate states.Abstract:
The linear H⊗(g⊕2h) Jahn–Teller problem, relevant to the instability of icosahedral molecules in fivefold degenerate states, is analyzed in detail for the first time. The method of the isostationary function is used to identify all the extrema of the corresponding potential energy surface. Depending on one single mode‐splitting parameter, two different coupling regimes are possible, favoring either pentagonal or trigonal minima. The saddle points on interconversion paths between equivalent minima are identified and the topology of the low‐energy regions of the surface is determined. The results are found to be in agreement with the epikernel principle. In addition the symmetry characteristics of the principal warping term under the SO(5) symmetry group of electronic space are assigned.read more
Citations
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Journal ArticleDOI
Modern aspects of the Jahn-Teller effect theory and applications to molecular problems.
Journal ArticleDOI
Electronic and infrared spectra of C + 60 and C - 60 in neon and argon matrices
TL;DR: In this article, the electronic transitions of C+60 and C−60 isolated in 5 K neon matrices were detected with well-resolved vibrational structure after NeI irradiation of C60 during deposition.
Journal ArticleDOI
Investigation of the electronic structure and spectroscopy of Jahn—Teller distorted C+60
TL;DR: In this article, the authors examined the electronic structure and spectroscopy of C+60 using the intermediate neglect of differential overlap (INDO) model and found that the ground state of the ion distorts from Ih symmetry to either D5d, D3d or D2h symmetry.
Journal ArticleDOI
Electron-vibration coupling constants in positively charged fullerene
TL;DR: In this paper, the authors determined the linear couplings of the two ag six gg and eight hg vibrational modes to the Hu highest occupied molecular orbital level of the C60 molecule and used these couplings to predict a D5 distortion, and an Hu vibronic ground state for C60 +.
Journal ArticleDOI
Computed structure and energetics of La@C60
TL;DR: In this paper, the first metallofullerene was observed in gas phase (although not yet isolated in a solid form) using density functional theory for the endohedral system La@C60.
References
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Journal ArticleDOI
C 60 : Buckminsterfullerene
Harold W. Kroto,Harold W. Kroto,James R. Heath,Sean C. O'Brien,Robert F. Curl,Richard E. Smalley +5 more
TL;DR: In this article, the authors proposed a truncated icosahedron, a polygon with 60 vertices and 32 faces, 12 of which are pentagonal and 20 hexagonal.
Book
Chemistry of the elements
TL;DR: In this article, the origins of the elements, isotopes and atomic weights Chemical periodicity and the periodic table were discussed, including the following elements: Hydrogen Lithium, sodium, potassium, rubidium, caesium and francium Beryllium, magnesium, calcium, strontium, barium and radium Boron Aluminium, gallium, indium and thallium Carbon Silicon Germanium, tin and lead Nitrogen Phosphorus Arsenic, antimony and bismuth Oxygen Sulfur Selenium, tellurium
Book
Rotations, quaternions, and double groups
TL;DR: In this article, a complete treatment of finite point groups as subgroups of the full rotation group and a unique definition of the quaternion parameters for all operations of such groups is given.
Book
Vibronic interactions in molecules and crystals
TL;DR: Vibronic interaction effects constitute a new field of investigation in the physics and chemistry of molecules and crystals that combines all the phenomena and laws originating from the mixing of different electronic states by nuclear displacements This field is based on a new concept which goes beyond the separate descriptions of electronic and nuclear motions in the adiabatic approximation as mentioned in this paper.
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Stability of Polyatomic Molecules in Degenerate Electronic States. I. Orbital Degeneracy
H. A. Jahn,Edward Teller +1 more