Microscopic Model for High-spin vs. Low-spin ground state in $[N{i}_{2}M(CN{)}_8]$ ($M=M{o}^V,W^V,N{b}^{IV}$) magnetic clusters

Rajamani Raghunathan, Jean-Pascal Sutter, Laurent Ducasse +2

Conventional superexchange rules predict ferromagnetic exchange interaction between Ni(II) and M (M=Mo(V), W(V), Nb(IV)). Recent experiments show that in some systems this superexc…