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

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 Mossbauer 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.

Automated summary

Compounds of the 5 amino and 5 nitro 1,2,3,4 tetracyanocyclopentadienide ligand with iron(ii) and iron(iii), silver(i) and potassium(i) were synthesized and characterized using electrochemical methods and spectroscopy techniques. The study revealed free radical activity in transition metal compounds and signs of photoinduced electron transfer in compounds of the ligands. X-ray diffraction was used to characterize silver(i) and potassium compounds, with one structure showing a porous coordination polymer.