Bispidine based Hg(II) 1D Coordination Polymers of Helical Topology: Stability, Selective Adsorption and 1D to 2D Dimensionality Change via SC-to-SC Transformation

Alessandro Sayed; Massimo Cametti

doi:10.1002/chem.202401464

Bispidine based Hg(II) 1D Coordination Polymers of Helical Topology: Stability, Selective Adsorption and 1D to 2D Dimensionality Change via SC-to-SC Transformation

Chemistry. 2024 May 13:e202401464. doi: 10.1002/chem.202401464. Online ahead of print.

Authors

Alessandro Sayed¹, Massimo Cametti²

Affiliations

¹ Policlinico of Milan, Department of Chemistry, Materials and Chemical Engineering, ITALY.
² Politecnico di Milano, Dipartimento di Chimica, Materiali ed Ingegneria Chimica, Via Luigi Mancinelli 7, 20131, Milano, ITALY.

PMID: 38738456
DOI: 10.1002/chem.202401464

Abstract

Bispidine based Hg(II) coordination polymers of helical topology CP-MeOH and CP-EtOH are almost isostructural (they mainly differ for the solvent included in their lattice and by a small % in unit cell parameters) but they differ for everything else: i) their intrinsic stability, ii) their ability to adsorb solvents upon prior evacuation, iii) their accessible structural transformations. In particular, one of the two starting materials, once evacuated, is capable to adsorb methanol from atmospheres containing binary and ternary mixtures of volatile organic compounds (MeOH, CHCl3 and EtOH) under ambient conditions (25 °C, 1 atm) and with a marked selectivity. The other one is not, but undergoes a 1D to 2D dimensionality change which can be monitored in situ by SC-XRD through a SC-to-SC process.

Keywords: Coordination Polymers; SC-to-SC transformations; adsorption; bispidine ligands; volatile organic compounds (VOCs).