Introduction In this experiment you will examine the energetics of vibrational and rotational motion in the diatomic molecule HCl. The experiment involves detecting transitions between different molecular vibrational and rotational levels brought about by the absorption of quanta of electromagnetic radiation (photons) in the infrared region of the spectrum. The introductory discussion consists ...

Articles you may be interested in A versatile apparatus for time-resolved photoemission spectroscopy via femtosecond pump-probe experiments Rev. Rotational Raman spectroscopy of ethylene using a femtosecond time-resolved pump-probe technique Studies of electron transfer in NaI with pump–probe femtosecond photoelectron spectroscopy We have incorporated a classical treatment of molecular rotation...

We present an analytical calculation that predicts the collapse of vibrational wavepackets in molecules due to the coupling of the rotational and vibrational degrees of freedom. At longer times a new class of revivals is predicted in the vibrational degree of freedom, due to the finite size and discrete nature of the rotational reservoir. The interplay of these competing behaviours is studied i...

Structure, dynamics, and coupling involving single-molecules determine function in catalytic, electronic or biological systems. While vibrational spectroscopy provides insight into molecular structure, rapid fluctuations blur the molecular trajectory even in single-molecule spectroscopy, analogous to spatial averaging in measuring large ensembles. To gain insight into intramolecular coupling, s...

the interaction of dopamine and cysteine for formation of 5-s-cysteinyldopamine are investigated at thehartree-fock level theory. the structural and vibrational properties of 5-s-cysteinyldopamine are studiedat level of hf/6-31g*.interaction energy ( ae) is calculated -771.6923 kcal/mol rotational energy andthermodynamic parameters around two bond have been determined using hf/3-21g. changes of...

The natural collision coordinates of Part III are used to treat the analytical mechanics of chemical reactions, AB+C->A+BC. Other than in Part II, the classical analytical mechanics of chemical reactions on a smooth potential surface have not been explored previously in the literature. A Hamilton-Jacobi formalism is used, apparently for the first time in calculating a reaction rate. The "vibrat...

A non-contact adhesion measurement technique based on acoustic base excitation and laser interferometery has been introduced and demonstrated. The vibrational motion of 21.4-microm polystyrene latex particles (PSL) microspheres on surfaces were excited in the frequency range of 0-3.5 MHz, and their axial displacement responses were measured by an interferometer. It is shown that the rolling mot...

piezoelectric microcantilevers (mcs) are a new generation of microbeams used in atomic force microscopes (afms). due to their miniaturization of afms as well as their increased imaging precision and speed, these mcs are more popular than their classical counterparts. given the widespread application of these beams in nanoparticle topography, analysis of their vibrating motion has attracted much...

We develop the theory of the two-dimensional motion of cold atoms in a near-resonant annular laser beam. For a reddetuned field the laser beam provides an annular light shift potential and the atomic motion divides into vibrational and rotational normal motions analogous to a two-dimensional molecule. In the ground vibrational state we obtain an atom optics realization of a two-dimensional rota...