Self-assembly of a chiral three-dimensional manganese(II)-copper(II) coordination polymer with a double helical architecture

The use of the anionic dicopper(II) complex, [Cu-II(mpba)(2)](4-) [mpba = N,N'-1,3-phenylenebis(oxamate)], as tetrakis(bidentate) metalloligand toward Mn-II ions in the presence of oxalate and the chiral (S)-trimethyl-(1-phenylethyl)ammonium cation affords the first example of a mixed oxalato/oxamato-based chiral 3D metal-organic polymer.