In:
Chemistry – A European Journal, Wiley, Vol. 26, No. 12 ( 2020-02-26), p. 2635-2652
Abstract:
The synthesis of 1‐Fc‐ ( 3 ), 1‐Br‐6‐Fc‐ ( 5 a ), 2‐Br‐7‐Fc‐ ( 7 a ), 1,6‐Fc 2 ‐ ( 5 b ), 2,7‐Fc 2 ‐pyrene ( 7 b ), 3,6‐Fc 2 ‐9,10‐phenanthrenedione ( 10 ), and 3,6‐Fc 2 ‐9,10‐dimethoxyphenanthrene ( 12 ; Fc=Fe(η 5 ‐C 5 H 4 )(η 5 ‐C 5 H 5 )) is discussed. Of these compounds, 10 and 12 form 1D or 2D coordination polymers in the solid state. (Spectro)Electrochemical studies confirmed reversible Fc/Fc + redox events between −130 and 160 mV. 1,6‐ and 2,7‐Substitution in 5 a ( E °′=−130 mV) and 7 a ( E °′=50 mV) influences the redox potentials, whereas the ones of 5 b and 7 b ( E °′=20 mV) are independent. Compounds 5 b , 7 b , 10 , and 12 show single Fc oxidation processes with redox splittings between 70 and 100 mV. UV/Vis/NIR spectroelectrochemistry confirmed a weak electron transfer between Fe II /Fe III in mixed‐valent [ 5 b ] + and [ 12 ] + . DFT calculations showed that 5 b non ‐covalently interacts with the single‐walled carbon nanotube (SWCNT) sidewalls as proven by, for example, disentangling experiments. In addition, CV studies of the as‐obtained dispersions confirmed exohedral attachment of 5 b at the SWCNTs.
Type of Medium:
Online Resource
ISSN:
0947-6539
,
1521-3765
DOI:
10.1002/chem.201904450
Language:
English
Publisher:
Wiley
Publication Date:
2020
detail.hit.zdb_id:
1478547-X
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