- Open the database
**skeleton**and compute the adjacency matrices for the crystal structure (default parameters for AutoCN) - Run IsoCryst for the ACUCIK record and be sure that there are 4-, 5-, and 6-rings in the structure.

- Run ADS in the simplification mode,
**Simplification Method = Skeleton**,**Cluster Rings**<= 4. Seefor details.__Appendix 2__ - In the generated database
**skeleton_c**run IsoCryst and be sure that all 4-rings have been transformed to the net edges (C5-Zn1). - Go back to the database
**skeleton**and repeat simplification steps with**Cluster Rings**<=5 and 6. Pay attention to successive simplification of the coordination network.

What is the dimensionality of this network? Is there entanglement in this structure?

** Exercise:** simplify the other structures from the database

** Answer:** Structure of ARIBOS consists of 3 interpenetrated frameworks, which contains 5-rings ({Cd