Proton conduction and luminescent sensing property of two newly constructed positional isomer-dependent redox-active Mn(II)-organic frameworks

Proton-Conductive and Electrochemical-Sensitive Sensing Behavior of a New Mn(II) Chain Coordination Polymer

“…The oxidation process may be MnO carboxylate + H 2 O – e – = MnOOH + H + . The weak oxidation peak ( I pa = 5.1 μA) in 0.1 M H 2 SO 4 may be resulted from the rapid electrochemical oxidation, which occurs in the Mn-CP/GCE. − Therefore, the Mn-CP/GCE can provide an active site for the oxidation of nitrite. The oxidation peak current of Mn-CP/GCE exhibits a significant increase in the presence of 1 mM NaNO 2 , revealing that Mn-CP expectedly shows electrochemical catalysis to NO 2 – oxidation.…”

Unusual {⋯HNC2O⋯HCnO}, n = 1 or 2, synthons predominate in the molecular packing of one-dimensional coordination polymers, {Cd[S2P(OR)2]2(3LH2)}n, for R = Me and Et, but are precluded when R = i-Pr; 3LH2 = N,N′-bis(3-pyridylmethyl)oxalamide

“…In fact, two of the remaining examples do form amide-N–H⋯O(amide) contacts in their crystals. In the co-crystal, [Mn(1,3-O 2 CC 6 H 3 ICO 2 )( 3 LH 2 )] n , n ( 3 LH 2 ), 39 supramolecular tapes via concatenated {⋯HNCCO} 2 synthons are formed but these occur between the co-formers, i.e. the 3 LH 2 co-formers literally insert themselves within the tape that might have been formed by the coordinated 3 LH 2 molecules, a phenomenon classified as masked synthons.…”

Preparation, characterization, and electrochemical sensing performance of a novel pristine Cd-MOF and its composite with carbon nanotubes

“…As a new type of crystalline material, MOFs have received extensive attention mainly due to their fascinating morphology and tunable surface properties realized by judiciously choosing metal ions and organic ligands modified with appropriate functional groups. 1,2 They have been widely used in the field of gas adsorption, 3 drug delivery, 4 luminescence sensing, [5][6][7][8][9][10][11][12] proton conduction, [13][14][15][16][17][18] etc. MOFs provide an infinite array of metal ion centers and connecting ligands, which may be redox active or inactive.…”