Chiral and achiral helical coordination polymers of zinc and cadmium from achiral 2,6-bis(imidazol-1-yl)pyridine: Solvent effect and spontaneous resolution

Cuboctahedral [In36(μ-OH)24(NO3)8(Imtb)24]MOF with Atypical Pyramidal Nitrate Ion in SBU: Lewis Acid-Base Assisted Catalysis and Nanomolar Sensing of Picric Acid

A robust and multifunctional cuboctahedral [In₃₆(μ-OH)₂₄(NO₃)₈(Imtb)₂₄] MOF (In(Imtb)-MOF) with an atypical pyramidal nitrate ion-containing hitherto unknown SBU core [In₉(μ-OH)₆(NO₃)] is reported. The intra- and interlayer nitrate ions adopt pyramidal and inverted pyramidal shapes, which separates the active indium site [(In₃(μ-OH)₂)NO₃-(In₃(μ-OH)₂)] and linear In₃(μ-OH)₂ by 0.5 and 0.9 nm, respectively. Additionally, the high density of active metal sites shows remarkable catalytic activity with higher TOF even for sterically hindered substrates in Strecker synthesis and CO₂ cycloaddition. Moreover, the luminescence behavior of In(Imtb)-MOF and the presence of uncoordinated nitrogen atoms are exploited for selective sensing of explosive trinitrophenol (TNP) with a detection limit (LOD) of 2.3 ppb.

Zn and Co redox active coordination polymers as efficient electrocatalysts

New redox active 1D helical coordination polymers M(fcdHp) (M(ii) = Zn(1), Co(2)) have been obtained.

Molecular tectonics: from a rigid achiral organic tecton to 3D chiral Co and Fe coordination networks

The combination of an achiral tetradentate coordinating tecton with achiral Co(SCN)₂ and Fe(SCN)₂ neutral complexes leads to the formation of isostructural crystals composed of 3D helical strands.

Anion triggered and solvent assisted structural diversity and reversible single-crystal-to-single-crystal (SCSC) transformation between 1D and 2D coordination polymers

Synthesis of four new coordination polymers (CPs) 1–4 from angular ditopic ligand 2,6-bis(imidazol-1-yl)pyridine (pyim₂) and the anion triggered structural variation (1D and 2D)under different solvent conditions have been reported.