1.   Molecular crystals consist of molecules held in lattice sites by weak intermolecular forces such as van der Waals forces or hydrogen bonds.

2.   Naphthalene also forms molecular crystals.

3.   These are also known as giant molecular crystals.

4.   Both crystalline forms are examples of molecular crystals.

5.   White phosphorus exists as molecular crystals.

6.   Solid cubane forms molecular crystals, Gehring said, unlike ordinary salt crystals, in which lattices consist of alternate sodium and chlorine atoms.