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Tricoordinate Coinage Metal Complexes with a Redox‐Active Tris‐(Ferrocenyl)triazine Backbone Feature Triazine–Metal Interactions
Author(s) -
Straube Axel,
Coburger Peter,
Ringenberg Mark R.,
HeyHawkins Evamarie
Publication year - 2020
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202000226
Subject(s) - intramolecular force , adduct , chemistry , triazine , redox , borane , metal , photochemistry , electrochemistry , polymer chemistry , oxidation state , tris , nuclear magnetic resonance spectroscopy , inorganic chemistry , catalysis , stereochemistry , organic chemistry , electrode , biochemistry
2,4,6‐Tris(1‐diphenylphosphanyl‐1’‐ferrocenylene)‐1,3,5‐triazine ( 1 ) coordinates all three coinage metal(I) ions in a 1:1 tridentate coordination mode. The C 3 ‐symmetric coordination in both solid state and solution is stabilised by an uncommon cation–π interaction between the triazine core and the metal cation. Intramolecular dynamic behaviour was observed by variable‐temperature NMR spectroscopy. The borane adduct of 1 , 1BH 3 , displays four accessible oxidation states, suggesting complexes of 1 to be intriguing candidates for redox‐switchable catalysis. Complexes 1Cu , 1Ag , and 1Au display a more complicated electrochemical behaviour, and the electrochemical mechanism was studied by temperature‐resolved UV/Vis spectroelectrochemistry and chemical oxidation.