Synthesis and characterization of a new copper(II) polymer containing a thiocyanate bridge and its application in dopamine detection

Water Dissociation of a Dinuclear Bis(3,5‐dimethylpyrazolyl)methane Copper(II) Complex: X‐ray Diffraction Structure, Magnetic Properties, and Characteristic Absorption of the (CuN2Cl2)2 Core

“…The chelate rings Cu(1, 1′)–N(4, 4′)–N(5, 5′)–C(11, 11′)–N(12, 12′)–N(13, 13′) adopt a boat conformation, with puckering parameters, Q = 0.894(2) Å, θ = 96.23(13)°, and φ = 181.16(15)°, with the Cu1 and C11 atoms deviated to the same side of the main plane that contains the six‐membered ring, by –0.5526(9) Å and –0.473(3) Å, respectively. These values are in agreement with the conformation observed in the coordination polymer [Cu 2 (µ‐SCN) 3 ( L ) 2 ] and the cationic complex [Cr( L )(H 2 O) 2 Cl 2 ] + , showing that its conformation is similar, despite the differences in the metallic center, the coordination number, or the length of the coordinated bonds , . The molecular conformation is helped by the formation of intramolecular C11–H11B ··· Cl3 hydrogen bonds, with distances of 2.67 Å and 3.445(3) Å for H ··· Cl and C ··· Cl, respectively.…”

Copper(II) Complexes with Tridentate Bis(pyrazolylmethyl)pyridine Ligands: Synthesis, X‐ray Crystal Structures and ϵ‐Caprolactone Polymerization

“…The chelate rings Cu(2)−N(16)−C(15)−C(17)−N(18)−N(19) and Cu(2)−N(8)−N(7)−C(10)−C(11)−N(16) adopt a boat conformation, as seen before, with puckering parameters, Q=0.789(3)Å/θ=84.4(2)°/ϕ=1.7(2) ° and Q=0.806(2)Å/θ=93.9(2) °/ϕ=182.5(2) °, respectively, with both the Cu(2) and C(17, 10) atoms deviated, in each case, to the same side of the main plane that contains the rings by 0.4845(12)Å / 0.422(4)Å and −0.4860(11)Å/‐0.441 (3) Å, respectively. From these values, it is possible to determine that the structural conformations of the chelating rings are very similar but with the flaps oriented in opposite directions.…”

Coordination Polymers Containing 1,3-Phenylenebis-((1H-1,2,4-triazol-1-yl)methanone) Ligand: Synthesis and ε-Caprolactone Polymerization Behavior

“…Although mononuclear, binuclear and coordination polymers have been obtained using related bis(azolyl) ligands [ 26 , 27 , 28 , 29 , 30 ], in our case, the isolation of non-soluble compounds indicates the probable formation of a polymeric species for 2 , 3 and 5 . This assumption is supported by the results from both experimental and computational studies, and it was possible to propose structures of metal complexes (coordination polymers) as shown in Figure 4 .…”