Many of the metals that can form complexes with texaphyrins are metals that commonly exist in the +3-oxidation state, and part of the lanthanide series, however 12 main group metals form stable complexes as well in both the +2 and +3 oxidation state.
A wide range of metals that can interact with texaphyrins usually have a +3 charge, and belong to the lanthanide family, yet 12 primary group metals can create stable compounds in both the +2 and +3 oxidation states as well.