Energy levels of diatomic molecules

I 2.1 Rotational Energy Levels of Diatomic Molecules, K I 2.2 Vibrational Energy Levels of Diatomic Molecules, 10 I 2.3 Electronic Stales of Diatomic Molecules, 11 I 2.4 Coupling of Rotation and Electronic Motion in Diatomic Molecules Hund s Coupling Cases, 12 1-3 Quantum States of Polyatomic Molecules, 14... 

Written to be the definitive text on the rotational spectroscopy of diatomic molecules, this book develops the theory behind the energy levels of diatomic molecules and then summarises the many experimental methods used to study the spectra of these molecules in the gaseous state. 

The coefficients from Table 2-1 and atomic term values from Table 2-2 will suffice for calculation of an extraordinarily wide range of properties of covalent and ionic solids using only a standard hand-held calculator. This is impressive testimony to the simplicity of the electronic structure and bonding in these systems. Indeed the. same parameters gave a semiquantitativc prediction of the one-electron energy levels of diatomic molecules in Table 1-1. However, that theory is intrinsically approximate and not always subject to successive correc-... 

Somewhat complicated values for the ground state (v = 0) and succeeding excited states are obtained upon solving the equation. A simplified version of these levels may be written for the energy levels of diatomic molecules,... 

Table 0.1 Rotational and vibrational energy levels of diatomic molecules...

Extending previous accurate laser studies of the IR spectra of metal hydrides in gas phase, including NaH, CsH, BaH, SrH, RbH, GaH, InH, TIH CdH, ZnH, KH, MgH, CaH and LiH and also of diatomic hydride radicals, for instance SnH, NiH, FeH, CoH and GeH, the infrared spectra of two isotopic forms of silver hydride [ Ag (51.35%) and Ag (48.65%)] in its ground electronic state ( S) have been recorded . Accurately known absorption hnes of nitrogen dioxide sulphur dioxide and formaldehyde served for wavenumber calibration 21 transitions in the bands from v=l -0uptov = 3 2 have been measured for AgH and AgH respectively, their assignments and equation wavenumbers were presented explicitly and fitted to the Dunham expression (equation 38) for the energy levels of diatomic molecules, and the parameters Yij for two isotopic forms of AgH were determined. ... 

The simplest vibration-rotation spectra to interpret are those of diatomic molecules. The rotational energy levels of diatomic molecules are characterized by a single rotational quantum number, J. If the molecule is assumed to be a rigid rotor (i.e., its bond length remains constant no matter how rapidly the molecule rotates), the rotational energy is given by... 

Diatomic Molecules (Spin Neglected), 258. Symmetry Properties of the Wave Functions, 261. Selection Rules for Optical Transitions in Diatomic Molecules, 262. The Influence of Nuclear Spin, 265. The Vibrational and Rotational Energy Levels of Diatomic Molecules, 268. The Vibrational Spectra of Polyatomic Molecules, 273. 

---