In this paper, a Cd(II) metal-organic framework (MOF), Cd-DIBT (HDIBT = 5-(3΄,5΄-di(1H- imidazol-1-yl)-[1,1΄-biphenyl]-4-yl)-1H-tetrazole), has been constructed based on a newly designed heterotopic tripodal ligand containing both imidazolyl and pyrazolyl groups. The Cd-DIBT exhibits a new three-dimensional (3,3,9)-connected trinodal network topology with point symbol of (4²·6)(4³)₂(4⁸·6¹⁵·8¹²·10) (namely scnu) based on binuclear secondary building blocks (SBUs). Staggered 1D channels were observed in such framework and was estimated to have 5487 ų potential solvent area (56%). The stability study reveals that the framework is unstable and easily transforms into amorphous MOF after the removal of guest molecules. In addition, the Cd-DIBT shows a ligand-centered luminescence.