Side View

The Symmetry of [Co(diNOsar)]3+

[(1,8-Dinitro-3,6,10,13,16,19-hexa-azabicyclo{6.6.6}icosane)cobalt(III)] trication

You can view this with Idealized Symmetry if Desired

[Co(diNOsar)]3+ has D3 Symmetry (assuming that the NO2 groups can freely rotate)
The molecule therefore has one C3 axis (two C3 operations: C3 and C32) and 3 C2 axes (three C2 operations)

To View one of the C2 axes and rotations:
First Then,
Find the other two C2 axes by moving the molecule with your mouse and test by carrying out the (without resetting first)
Some Potentially Useful Viewing Tools:

Reference: CCDC Structure HARBAD; R.J. Geve, L.M. Englehardt, J. M. Harrowfield A.M. Sargenson, A. H. White Aust. J. Chem. Vol 46, 1993, p. 1485

Top View
To View the C3 rotations:

First Then,
OR To View the C32:
First Then,
Some Potentially Useful Viewing Tools:

Your next mission: determine if this is a Λ or Δ Enantiomer
and determine if the ligands have λ or δ twists
go to The Structure and Symmetry of Metal Tris Chelates for help on this.


Using your understanding of the symmetry properties of Co(diNOsar)3+,
now look for chemical equivalence and magnetic inequivalence for sets of protons in the molecule
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