Long-Range Ferromagnetic Ordering in Two-Dimensional Coordination Polymers Co[N(CN)2]2(L) [L = Pyrazine Dioxide (pzdo) and 2Methyl Pyrazine Dioxide (mpdo)] with Dual (mu)- and (mu)3-[N(CN)2] Bridges

the adition of pyrazine dioxide(pzdo) or 2-methyl pyrazine dioxide (mpdo)into the Co-dicyanamide binary system results in Co(N(cn)2)2 (pzdo) or CO(N(CN2))2(mpdo), respectively.they all consist of a two-dimen sional triangular connection of Co and exhibit long-range ferromagnetic ordering below ca.