New copper(II) 1D polymer containing dimethyl(phenylsulfonyl)amidophosphate: Synthesis, crystal structure and magnetic properties

The reaction of sodium dimethyl(phenylsulfonyl)amidophosphate NaL (HL = C6H5SO2NHP(O)(OCH3)2) with Cu(NO3)2 · 6H2O and o-bpe (1,2-bis(pyridine-2-yl)ethane) in appropriate ratios, afford the formation of 1D coordination polymer [Cu(L)2 · o-bpe]n in good yield. The crystal structures of HL (1) and [Cu(L)2 · o-bpe]n (2) are reported. In the crystal package the molecules of 1 are linked by intermolecular hydrogen bonds formed by the phosphoryl oxygen atoms which serve as acceptors and nitrogen atoms of amide groups as donors. The crystal structure of 2 indicates the presence of unsaturated Cu(L)2 unit bridged by o-bpe ligand in the one-dimensional polymeric chain. The Cu(II) atoms have distorted 4 + 2 octahedral CuO4N2 environment formed by the oxygen atoms belonging to the sulfonyl and phosphoryl groups of two deprotonated chelate ligands and nitrogen atoms of the bridging o-bpe ligands.The magnetic study of 2 has revealed the presence of a weak intrachain antiferromagnetic exchange interaction between copper ions.

Graphical abstractThe reaction of sodium dimethyl(phenylsulfonyl)amidophosphate NaL (HL = C6H5S(O)2NHP(O)(OCH3)2) with Cu(NO3)2∙6H2O and o-bpe (1,2-bis(pyridine-2-yl)ethane) in appropriate ratio, leads to the formation of 1D coordination polymer [Cu(L)2∙o-bpe]n in good yield. The structural features, as well as spectroscopic and magnetic properties are reported.Figure optionsDownload full-size imageDownload as PowerPoint slide