A two dimensional heterospin layer coordination polymer of {[LCuIIGdIII(NO3)CuI2(CN)4]·MeOH}nwith short CuICuIbondsDedicated to Prof. Wenqi Chen on the occasion of his 80th birthday.CCDC reference number 723145. For crystallographic data in CIF or other electronic format see DOI: 10.1039/c0ce00207k

Reaction of [LCuIIGdIII(NO3)3] (L = N,N′-ethylenebis(salicylideneimine)) and [LiTCNE] (TCNE = tetracyanoethylene) in MeOH–CH3CN affords an unexpected cyano-bridged coordination polymer {[LCuIIGdIII(NO3)CuI2(CN)4]·MeOH}n(1) featuring unexpectedly short CuICuIbonds (2.470(2) Å). X-ray crystallographic analysis reveals that 1possesses a two dimensional heterospin layer structure comprised of a chain of five-membered rings. The magnetic analysis of 1reveals a ferromagnetic interaction between the GdIIIand CuIIions. [ABSTRACT FROM AUTHOR]