Synthesis and electrochemical behaviour of rigid ferrocenyl-terminated pyridylphenylene dendrimers

“Click” Synthesis and Electrochemical Behavior of Ferrocenyl-Terminated Pyridylphenylene Dendrimers

“…In fact, the adsorbed oxidized species enhance the reduction wave, and that is irrelevant to the amount of neutral dendrimer, which remains adsorbed on the surface after reduction (i.e., after the full CV cycle). The same phenomenon was described in our preceding paper …”

“…In this way, all of the consecutive oxidations ( [D n Py m -fc] 0 → [D n Py m -fc] 1+ → [D n Py m -fc] 2+ →...) occur at essentially the same potential, so the resulting CV curve appears identical to an ordinary single-electron wave. This behavior is typical for ferrocenyl dendrimers. ,,, All oxidation steps are chemically reversible because the cationic species [D n Py m -fc] p+ are stable at least within the time scale of CV experiment.…”

“…Recently, we reported the first synthesis of ferrocenyl-terminated pyridylphenylene dendrimers via the Diels–Alder cycloaddition approach . These novel organometallic macromolecules combine the redox properties of the ferrocenyl groups with the coordinative properties of pyridylphenylene dendrimers.…”

Benchmarking DFT Calculations of 1H and 13C Chemical Shifts in Monosubstituted Ferrocenes

“…The experimental chemical shifts were obtained from the literature: ferrocene ( a ), [ 98–99 ] methylferrocene ( b ), [ 100 ] ethylferrocene ( c ), [ 101 ] phenylferrocene ( d ), [ 102–103 ] 4‐iodophenylferrocene ( e ), [ 104 ] ethynylferrocene ( f ), [ 105 ] ferrocenylmethanol ( g ), [ 106 ] 1‐ferrocenylethanol ( h ), [ 107 ] N , N ‐dimethylaminomethylferrocene ( i ), [ 108 ] formylferrocene ( j ), [ 108 ] ferrocenecarboxylic acid ( k ), [ 109 ] acetylferrocene ( l ), [ 108 ] N , N ‐dimethylferroceneamide ( m ), [ 106 ] fluoroferrocene ( n ), [ 110–111 ] chloroferrocene ( o ), [ 112 ] bromoferrocene ( p ), [ 112 ] trimethylferrocenylphosphonium hexafluorophosphate ( q ), [ 113 ] iodoferrocene ( r ), [ 112 ] cyanoferrocene ( s ), [ 114 ] ferroceneboronic acid ( t ), [ 115 ] 1,1′‐dimethylferrocene, [ 116–117 ] 1,1′‐diphenylferrocene, [ 118 ] 1,1′‐ferrocenediboronic acid, [ 118 ] 1,1′‐ferrocenedicarboxylic acid, [ 119–120 ] 1,1′‐diacetylferrocene, [ 120–121 ] 1′‐trimethylsilylethynyl‐1‐ethynylferrocene, [ 122 ] 1′‐bromo‐1‐ferrocenylcarboxylic acid, [ 123 ] and decamethylferrocene. [ 124 ] The extracted data are given in Tables S10 and S14.…”

Ferrocenyl-terminated polyphenylene-type “click” dendrimers as supports for efficient gold and palladium nanocatalysis

“…Functionalization with pyridyl groups 16 has provided first attempts to coordinate transition metal cations and NPs., 17,18 with special attention to prion trapping. 19,20 Recently, ferrocene terminated dendrimers with rigid cores have been obtained via the Diels-Alder approach with ferrocene containing cyclopentadienone, 21 and polyphenylene dendrimers containing the pyridyl units and terminated with ethynyl groups have been "clicked" with azidomethyleneferrocene according to the CuAAC reaction to form 1,2,3-triazolylmethylene-ferrocene-terminated poly(phenylene) dendrimers. 22 The later dendrimers possess the 1,2,3-triazole groups near their termini allowing to coordinate transition-metal cations [23][24][25][26][27] and smoothly stabilize late transition-metal NPs.…”