Molecular Structure

The investigation of molecular structure parallels the study of atomic structure in that the methods of quantum mechanics are applied along with the information obtained from molecular spectra.

A major part of the study of molecular structure is the description of the chemical bonds which are formed between atoms. The classic studies are the extremes of ionic bonding in sodium chloride and covalent bonding in the hydrogen molecule.

Sodium chloride

Hydrogen molecule

Molecular spectra can give information about the bond strength as revealed in vibrational spectra and about bond lengths as revealed in rotational spectra.

Chemical bonds
Bond energy example
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