1D and 2D Cobalt(II) coordination polymers with dipicolinic acid ligands and photocatalytic CO2 reduction

Abstract

1D and 2D cobalt(II) coordination polymers, [Co(2,3-dpc)(H₂O)₂]_n (<strong>1</strong>), [Co(2,5-dpc)(H₂O)₃]_n (<strong>2</strong>) and [Co(3,5-dpc)(H₂O)₂]_n (<strong>3</strong>) (dpc = dipicolinic acid dianion) have been successfully synthesized by reaction of dipicolinic acid ligands with CoF₂in aqueous methanolic solution under hydrothermal conditions. High resolution mass spectroscopy investigation reveals the forming process of CO during the photocatalytic CO₂ reduction and the plausible mechanisms are proposed.