Two new layered complexes supported by helical {VO3}nn- chains: Hydrothermal syntheses and crystal structures of [M(dpa)V2O6] (M = Zn(II) and Cu(II); dpa = 2,2′-dipyridylamine)

Two novel layered complexes supported by helical {VO3}nn- chains have been synthesized hydrothermally. While the left and right helical {VO3}nn- chains of 1 are located in the different oxide layers respectively, these of 2 are alternated in the same layer.