## Spectroscopy and molecular structure |

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### Contents

THE TECHNIQUES OF SPECTRO | 1 |

The Historical Background 1 The Electromagnetic Spectrum 2 Spectro | 7 |

Emission Sources 9 Absorption Spectroscopy 11 Line and Baud Spec | 14 |

Copyright | |

44 other sections not shown

### Common terms and phrases

absorption according angles AO's approximation atomic orbitals axes bands bond calculated Cartesian Chem classical coefficients components configuration corresponding coupling degeneracy degenerate vibration determined diatomic molecules dipole displacement doubly degenerate eigenfunctions eigenvalues electron configurations electronic transition emission energy levels example excited field frequency given gives ground Hamiltonian harmonic oscillator homonuclear hydrogen infrared integral intensity interactions inversion irreducible representations linear combinations linear molecule lines magnetic matrix MO's molecular orbitals molecule belongs normal coordinates normal vibrations nuclei obtained occur perturbation Phys planar plane point group polyatomic molecules potential curves potential energy precess quantized quantum mechanics quantum number radiation Raman relative represent respectively result rotational constants rotational levels rotational structure Section selection rules separation shown in Figure spectra spectroscopic spectrum spin spin-orbit interaction splitting symmetric top symmetry operations Table theory tion totally symmetric transformation values vector model vibrational levels vibronic wave functions wave number wavelength zero