Spin canting in an unprecedented three-dimensional pyrophosphate- and 2,2 '-bipyrimidine-bridged cobalt(II) framework

The three-dimensional cobalt(II) compound of formula {[Co-2(P2O7)(bpym)(2)]center dot 12H(2)O}(n), where the pyrophosphate and 2,2'-bipyrimidine act as bridging ligands, is a new example of a spin-canted antiferromagnet with T-c = 19 K.