Guest-dependent negative thermal expansion in nanoporous prussian blue analogues M(II)Pt(IV)(CN)6.x{H2O} (0 < or = x < or = 2; M = Zn, Cd).

Guest-dependent negative thermal expansion in nanoporous prussian blue analogues M(II)Pt(IV)(CN)6.x{H2O} (0 < or = x < or = 2; M = Zn, Cd).