1. Go to the

2. Simplify the crystal structure in the standard representation (Choose as central atom the metal Cd and the ligand will be represented by its barycenter). Remove 0- and 1-coordinated atoms in the simplified structure (see figure above right). The 2-coordinated atoms should be retained because they often play an important role in forming catenation.

3. Open an ADS window for the simplified structure and check the following ADS options.

4. Run ADS. You will get the following output.

ADS informs you that there is a

5. To ensure that the array has an increased dimensionality, run IsoCryst and find catenating ladders.

To ensure that the ladders form an infinite array use

It is easy to see for the picture after some rotation that the final entanglement is a 3D array. We cannot find any plane that separates it in disjoint parts.

6. Try to simplify the structure more by contracting 2-coordinated atoms. Does the simplification influence the polycatenation in this case?