Synthesis and Structural Characterization of [(Pb₆I₂₂)(DMF)₂(DPB)₅] Directed by 1,1′-dipentyl-4,4′-bipyridinium Cation

Abstract

In this study, one novel hexanuclear black crystals, namely [(Pb₆I₂₂)(DMF)₂(DPB)₅] were obtained from the solution-phase reaction of PbI₂ in the present of excess KI directed by viologen-based linear templates in MeOH/DMF (DPB= 1,1′-dipentyl-4,4′-bipyridinium). Single-crystal X-ray diffraction analysis showed that this supramolecular compound crystallized in the monoclinic system with the space group P2(1)/c. Electrostatic interactions between the organic dications and inorganic moieties and hydrogen-bond interactions between structural unit are present and contribute to the crystal packing. IR spectroscopy was performed to further characterize title compound.

Keywords:

• 1,1′-dipentyl-4,4′-bipyridinium
• viologen derivative
• crystal structure
• coordination compound

Supplementary Material

Crystallographic data for the structural analysis have been deposited with the Cambridge Crystallographic Data Center, CCDC No. 951444. Copies of this information may be obtained free of charge from The Director, CCDC, 12 Union Road, Cambridge, CB2 1EZ, UK (fax: [phone]; email: [email protected] or www: http://www.ccdc.cam.ac.uk).