Coordination polymers of 5-substituted 1,2,3,4-tetracyanocyclopentadienides: structural and electrochemical properties of complex compounds of 5-amino- and 5-nitro-tetracyanocyclopentadienide

Patrick R Nimax; Nils Rotthowe; Florian Zoller; Tobias Blockhaus; Fritz Wagner; Dina Fattakhova; Karlheinz Sünkel

doi:10.1039/d1dt02866a

Coordination polymers of 5-substituted 1,2,3,4-tetracyanocyclopentadienides: structural and electrochemical properties of complex compounds of 5-amino- and 5-nitro-tetracyanocyclopentadienide

Dalton Trans. 2021 Dec 7;50(47):17643-17652. doi: 10.1039/d1dt02866a.

Authors

Patrick R Nimax¹, Nils Rotthowe², Florian Zoller³, Tobias Blockhaus³, Fritz Wagner⁴, Dina Fattakhova⁵, Karlheinz Sünkel³

Affiliations

¹ National Center for Biomolecular Research, Masaryk University, Kamenice 5, CZ-62500 Brno, Czechia. patricknimax@mail.muni.cz.
² Department of Chemistry, University of Konstanz, Universitätsstr. 10, 788457 Konstanz, Germany.
³ Department of Chemistry, Ludwig-Maximilian University, Butenandstr. 5-13, 81377 Munich, Germany.
⁴ Department of Physics, TU Munich, James-Franck Str., 85748 Garching, Germany.
⁵ Electrochemical Storage Department, IEK-1, Forschungszentrum Julich, Wilhelm-Johnen-Str., 52425 Juelich, Germany.

PMID: 34806109
DOI: 10.1039/d1dt02866a

Abstract

Compounds of the 5 amino (ATCC) and 5 nitro 1,2,3,4 tetracyanocyclopentadienide (NTCC) ligand with iron(II) and iron(III), silver(I) and potassium(I) were prepared and characterized by electrochemical methods using EPR, cyclic voltammetry and Mößbauer spectroscopy as well as UV-Vis spectroscopy. The investigation sheds light on the free radical activity in non- as well as transition metal compounds, and shows signs of photoinduced electron transfer in transition metal compounds of the ligands. We characterized silver(I) and potassium compounds of the compounds via X-ray diffraction, with one of the structures exhibiting a porous coordination polymer.