biostudies-literatureUnknown10(3)Zhang ZZTwo new three-dimensional (3D) Co(II)- and Cu(II)-azido frameworks, [Co₂(N₃)₄(bpym)₂]<i>_n</i> (<b>1</b>) and [Cu₂(N₃)₄(bpym)]<i>_n</i> (<b>2</b>), were successfully synthesized by introducing a semi-flexible <i>N</i>-donor ligand, 5,5'-bipyrimidin (bpym), with different bridging modes and orientations. Compounds <b>1</b> and <b>2</b> were structurally characterized by X-ray crystallography, IR spectroscopy, thermogravimetry and elemental analysis. Compounds <b>1</b> and <b>2</b> are 3D pillared-layer frameworks with double end-on (EO) azido bridged dinuclear motifs, [M₂(EO-N₃)₂]. In Compound <b>1</b>, the bpym ligands show <i>trans</i> <i>μ</i>₂-bridging mode and the role as pillars to connect the Co(II)-azido layers, composed of [Co₂(EO-N₃)₂] motifs and single end-to-PolymersE229https://www.ebi.ac.uk/biostudies/studies/S-EPMC6415140biostudies-literatureTwo New Three-Dimensional Pillared-Layer Co(II) and Cu(II) Frameworks Involving a [M₂(EO-N₃)₂] Motif from a Semi-Flexible N-Donor Ligand, 5,5'-Bipyrimidin: Syntheses, Structures and Magnetic Properties.PMC6415140Zhang ZZKuo YLLee GHYang CIChang HTfalseTwo New Three-Dimensional Pillared-Layer Co(II) and Cu(II) Frameworks Involving a [M₂(EO-N₃)₂] Motif from a Semi-Flexible N-Donor Ligand, 5,5'-Bipyrimidin: Syntheses, Structures and Magnetic Properties.Two new three-dimensional (3D) Co(II)- and Cu(II)-azido frameworks, [Co₂(N₃)₄(bpym)₂]<i>_n</i> (<b>1</b>) and [Cu₂(N₃)₄(bpym)]<i>_n</i> (<b>2</b>), were successfully synthesized by introducing a semi-flexible <i>N</i>-donor ligand, 5,5'-bipyrimidin (bpym), with different bridging modes and orientations. Compounds <b>1</b> and <b>2</b> were structurally characterized by X-ray crystallography, IR spectroscopy, thermogravimetry and elemental analysis. Compounds <b>1</b> and <b>2</b> are 3D pillared-layer frameworks with double end-on (EO) azido bridged dinuclear motifs, [M₂(EO-N₃)₂]. In Compound <b>1</b>, the bpym ligands show <i>trans</i> <i>μ</i>₂-bridging mode and the role as pillars to connect the Co(II)-azido layers, composed of [Co₂(EO-N₃)₂] motifs and single end-to-2018-01-01T00:00:00Z2018 Feb2026-07-17T01:21:41.367Z2025-05-31T22:57:15.289ZS-EPMC64151403096626410.3390/polym10030229