Pyridine-driven assembly of Zn(ii) and Cd(ii) complexes with 2-furoic acid. The role of water in a structural transformation

Abstract

Coordination of the furane ring has been attempted in five Zn(ii) and Cd(ii) complexes and achieved by water-assisted structural transformation. It has been traced by X-ray and fluorescence experiments and a conversion pathway has been proposed.

Cobalt(II) Paddle-Wheel Complex with 3,5-Di(tert-butyl)-4-hydroxybenzoate Bridges: DFT and ab initio Calculations, Magnetic Dilution, and Magnetic Properties

“….M by 0.151 Å causes displacement of the zinc atom closer to the geometrical center of the square pyramid (by 0.076 Å) and is partially compensated by the proximity of the oxygen atom of the ethanol molecule (by 0.049 Å). This change in the geometry of the coordination environment can be expressed by the square pyramid distortion criterion defined by the Continuous Shape Measures approach: S Q (1) = 0.465 and S Q (2) = 0.326.The observed M-O and C-O bond lengths agree well with the known data for dimeric Co and Zn complexes of similar structures[31][32][33][34].…”