Co(NO2)6 Co(NO2)6
View down 3 axis View down 2 axis

This cobaltinitrite (III) anion has 4 threefold rotation axes, with 3 mutually perpendicular twofold rotation axes through the N-Co-N bonds.

The point-group symmetry for this molecule is given the crystallographic symbol 2/m -3, which is usually shortened to m -3. Do not confuse this with the crystallographic symbol for the point group -3 m.

© Copyright 1997-2006.  Birkbeck College, University of London. Author(s): Jeremy Karl Cockcroft