Please enable JavaScript.
Coggle requires JavaScript to display documents.
MOLECULAR SPECTROSCOPY, plays important role in the analysis of the…
MOLECULAR SPECTROSCOPY
-
-
MICROWAVE SPECTROSCOPY
RIGID ROTOR
linear molecules
-has dipole moment, microwave active
-
symmetric tops
-prolate & oblate
-permanent dipole moment, microwave active
spherical tops
-no dipole moment, no rotational spectrum observable
MOMENT OF INERTIA
-mass of each atom multiples by the square of its distance from the rotational axis passing through the center of mass of the molecule
i)moment A= rotation about the bond axis
ii)moment B= rotation end-over-end in the plane of paper
iii)moment C= rotation end-over-end at right angles to the plane
-
-
-
plays important role in the analysis of the structure, bonding and spectroscopy of the molecule
-only cn, cnv, and cs have permanent electric dipole moment lie along the symmetry axis
-
form of energy that is produced by oscillating electric and magnetic disturbance, or by the movement of electrically changed particles traveling through a vacuum or matter
-
-
atoms of rotating molecules are subjected to centrifugal forces that tend to distort the molecular geometry and change the moment of inertia
moment of inertia for the end-over-end rotation of a polyatomic molecule is greater than diatomic molecule
-
