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Mono‐ and Diruthenium, Symmetrical and Unsymmetrical Complexes Bridged by Pyrene Derivatives: Experimental and Theoretical Studies
Author(s) -
Zych Dawid,
Slodek Aneta,
Pająk Michał,
Krompiec Stanisław,
Spólnik Grzegorz,
Danikiewicz Witold
Publication year - 2017
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201700621
Subject(s) - chemistry , density functional theory , moiety , diethylamine , delocalized electron , pyrene , computational chemistry , terpyridine , electrochemistry , derivative (finance) , metal , photochemistry , stereochemistry , organic chemistry , electrode , financial economics , economics
New mono‐ and diruthenium, symmetrical and unsymmetrical complexes, bridged by a new cyclometalating 1,3,6,8‐tetra(4‐substituted‐2‐pyridyl)pyrene derivative containing the solubilizing group 2,2‐dimethylpropyloxy, with the terminal 4′‐phenyl‐2,2′:6′,2′′‐terpyridine ligands containing diethylamine and a 2‐ethynyl‐9,9‐dioctylfluorene moiety, were synthesized and thoroughly characterized. Thermal studies show that the obtained complexes retain high thermal stability. Spectroscopic studies show the metal‐to‐ligand charge‐transfer excitation. Further, electrochemical studies show delocalization of the electronic charge (mixed valance). In addition, density functional theory and time‐dependent density functional theory calculations have provided more detail about the structural properties and a deeper understanding of the experimental results. All of the obtained results show the considerable differences between the mono‐ and diruthenium and symmetrical and unsymmetrical complexes.