By　using　hydrothermal　method,　a　cobalt　complex,　namely,　[Co-2(L)(Bipy)(2)](n,)　(1),　was　synthesized　based　on　flexible　1,3-bis　[3,5-(dicarboxylate)phenoxy]-2-hydroxypropane(H4L)　and　4,4＇　-bipyridine(Bipy).　The　complex　1　was　characterized　by　infra-red　spectrum　(IR),　UV-Vis　spectrum,　thermo-gravimetric　analysis　(TGA),　single　crystal　X-ray　diffraction,　powder　X-ray　diffraction　and　elemental　analysis.　Complex　1　crystalizes　in　monoclinic　system,　space　group　C2/c.　In　complex　1,　two　six-coordinated　cobalt　atoms　were　connected　by　two　bidentate　carboxylic　groups,　forming　an　octahedral　dimetallic　cluster,　which　can　be　considered　as　a　6-connected　node　to　connect　four　L　ligand　molecules　and　two　other　dimetallic　clusters.　The　flexible　tetracarboxylate　ligand　L　can　be　considered　as　a　tetrahedral　4-connected　node　to　connect　four　dimetallic　clusters.　The　two　parallel　Bipy　molecules　bridging　two　dimetallic　clusters　are　transformed　into　edge　during　simplification.　Thus,　the　framework　of　1　features　a　sqc422　net.　CCDC:　947285.