Coordination polymeric materials in binary and ternary Cu(II)–tetracarboxylato–bipy systems: Structure–reactivity correlation in Cu(II)–(O,N) 1D–3D lattice assemblies

Two temperature-induced 1D CuII chain enantiomeric pairs showing different magnetic properties and nonlinear optical responses

“…52 However, the 1D Cu II chain [Cu(NO 3 ) 2 (bipy)] n ( 5 ) was reported to show a weak antiferromagnetic coupling between Cu II ions ( J = −0.11 cm −1 ) due to the presence of a classical Cu 2 O 2 moiety with the Cu–O–Cu angle being 112.41° (>99°), usually resulting in an antiferromagnetic coupling. 44,53 Thus S -1-Cu represents the first example of chiral 1D Cu II chain CPs with an NO 3 − group as a sole bridging ligand, displaying a ferromagnetic coupling.…”

“…[Cu(ettz) 2 (NO 3 ) 2 ] n (ettz = 1-ethyltetrazole) ( 3 ), 42 [Cu(dien) 2 (NO 3 )] n ·(NO 3 ) (dien = diethylenetriamine) ( 4 ) 43 and [Cu(NO 3 ) 2 (bipy)] n (bipy = 2,2′-bipyridine) ( 5 ). 44 In 3 , one NO 3 − group adopts the O -monodentate coordination mode to bridge two adjacent Cu II ions, while another NO 3 − acts as a terminal ligand. In 4 , one NO 3 − group links two neighboring Cu II ions in an O -monodentate coordination fashion, and another NO 3 − as a counter-anion exists in the crystal lattice.…”

A Luminescent Silver(I) Metal‐Organic Framework with New (4,6)‐Connected Topology Based on Mixed Tetrachlorotereph­thalate and 2,2′‐Bipyridine Ligands

“…Taking the promising luminescence properties of d 10 metal complexes into account,35–38 the photophysical properties of 1 in the solid state at room temperature were investigated. Complex 1 exhibits an intense emission at λ max = 492 nm upon excitation at 358 nm (see Figure 3), while the free H 2 BDC‐Cl 4 and 2, 2′‐bpy ligands display emissions maximized at 474 nm and 416 nm, respectively (see Figure S4, Supporting Information, and reference39). Compared with the free ligands, complex 1 exhibits a significant red‐shifted emission spectrum with different peak shapes.…”

The role of Chlorine Interactions in the construction of Nickel(Ii) and Cobalt(Ii) Supramolecular Metal-Organic Frameworks Based on Mixed Tetrachloroterephthalate and 2,2'-Bipyridine Ligands

“…5). Both complexes show broad emissions from 450 to 540 nm with similar maximum peaks of 474 nm for 1 and 472 nm for 2 in the blue region, while the free H 2 BDC-Cl 4 and 2,2′-bpy ligands display emissions maximised at 474 nm 12 and 416 nm, 22 respectively. The emission intensity of 1 and 2 are relatively weaker, which is likely related to their complicated structures as well as the decay effect of high-energy C-H and/ or O-H oscillators from coordinated solvent molecules.…”