What is meant by polarizability of a molecule?
Polarizability of a molecule refers to the ability of its electron cloud to be distorted or displaced relative to the positions of the nuclei when an external electric field is applied. In other words, it measures how easily the distribution of electrons in a molecule _____ ______ __________ __________ __________ _________ __________ ___ _______ _______ _________ ______.
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What makes TMS a molecule of choice to act as a reference in the NMR spectrometry?
Electronic transitions are called vertical transitions. Comment.
Aluminium has the highest nuclear charge, so its 2p peak should have the largest binding energy, but shielding effects reverse this trend.
Justify your answer.
Assuming that the force constants of H-Cl and D-Cl are the same, calculate the fundamental vibration frequency of D-Cl if that of H-Cl is .
Raman rotational spectra of was observed with Hg light with Rayleigh line at
. Stokes lines were observed at
. Draw the rotational energy level diagram with Stokes and anti Stokes lines.
The lifetime of (excited state) is
. If the excited state is
above the ground state determine the linewidth
and ratio
.
has bond length
. Calculate the wavenumbers of the first four lines in its microwave spectrum.
[Given: mass of C=12.000 u and mass of N=14.007 u]