The package provides an environment MOdiagram and some
commands, to create molecular orbital diagrams using TikZ. For
example, the MO diagram of dihydrogen would be written as:
\begin{MOdiagram} \atom{left}{ 1s = {0;up} } \atom{right}{ 1s =
{0;up} } \molecule{ 1sMO = {1;pair, } } \end{MOdiagram} The
package also needs the l3kernel and l3packages bundles from the
LaTeX 3 experimental distribution.
