The oxidation
state for platinum complexe
sof TPPTS can be controlled through variation of the pHof an aqueou
s solution. Thu
s Pt(H)(TPPTS)
3+ di
ssolvedin H
2O give
s a well-characterized Pt(II)-H complex atneutral or acidic pH but exi
st
s a
s Pt(TPPTS)
3 at pH
![](/image<font color=)
s/entitie
s/ge.gif">12.