From diammonium hexachloroplatinate(IV) we can prepare Pt(NH3)2Cl2 which occurs in cis (ΔHf=–467.4 kJ/mol; ΔGf=–228.7kJ/mol) and trans (ΔHf=–480.3 kJ/mol; ΔGf=–222.8 kJ/mol) form. Is the cis form or trans form thermodynamically more stable?
I thought trans because more energy is released when it is made, but it is cis. Why is it cis?