Ferrocene Rotary Switches Featuring 2-Pyridyl-1,2,3-triazole “Click” Chelates

James A. Findlay; Daniel A.W. Ross; James D. Crowley

doi:10.1002/ejic.202100948

Ferrocene Rotary Switches Featuring 2-Pyridyl-1,2,3-triazole “Click” Chelates

James A. Findlay, Daniel A.W. Ross, James D. Crowley

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Three ferrocene-based rotary switches featuring 2-pyridyl-1,2,3-triazole (pytri) “click” chelates have been developed. The rotors can be switched from a folded (syn) to extended (anti) conformation by the addition of [Cu(CH₃CN)₄](PF₆) and 6,6′-dimesityl-2,2′-bipyridine. This extension process could be reversed by the addition of 1,4,8,11-tetraazacyclotetradecane (cyclam) to sequester the Cu(I) ions. Disappointingly, the weakness of the pytri chelates prevented the development of an electrochemically switchable system.

Original language	English
Article number	e202100948
Number of pages	7
Journal	European Journal of Inorganic Chemistry
Volume	2022
Issue number	5
Early online date	12 Jan 2022
DOIs	https://doi.org/10.1002/ejic.202100948
Publication status	Published - 16 Feb 2022
Externally published	Yes

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title = "Ferrocene Rotary Switches Featuring 2-Pyridyl-1,2,3-triazole “Click” Chelates",

abstract = "Three ferrocene-based rotary switches featuring 2-pyridyl-1,2,3-triazole (pytri) “click” chelates have been developed. The rotors can be switched from a folded (syn) to extended (anti) conformation by the addition of [Cu(CH3CN)4](PF6) and 6,6′-dimesityl-2,2′-bipyridine. This extension process could be reversed by the addition of 1,4,8,11-tetraazacyclotetradecane (cyclam) to sequester the Cu(I) ions. Disappointingly, the weakness of the pytri chelates prevented the development of an electrochemically switchable system.",

keywords = "2-Pyridyl-1,2,3-triazole, Copper, Ferrocene, Molecular switching, Rotors",

author = "Findlay, \{James A.\} and Ross, \{Daniel A.W.\} and Crowley, \{James D.\}",

note = "Funding Information: This work was supported by the Marsden Fund (UOO1124), Department of Chemistry, University of Otago and MacDiarmid Institute. The D.A.W.R., and J.A.F. thank the University of Otago for doctoral scholarships. D.A.W.R. thanks the MacDiarmid Institute for COVID19 doctoral scholarship extension. J.A.F. thanks the MacDiarmid Institute for funding a research assistant position. D.A.W.R. also thanks the University of Otago for a publishing bursary. Publisher Copyright: {\textcopyright} 2021 Wiley-VCH GmbH",

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doi = "10.1002/ejic.202100948",

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T1 - Ferrocene Rotary Switches Featuring 2-Pyridyl-1,2,3-triazole “Click” Chelates

AU - Findlay, James A.

AU - Ross, Daniel A.W.

AU - Crowley, James D.

N1 - Funding Information: This work was supported by the Marsden Fund (UOO1124), Department of Chemistry, University of Otago and MacDiarmid Institute. The D.A.W.R., and J.A.F. thank the University of Otago for doctoral scholarships. D.A.W.R. thanks the MacDiarmid Institute for COVID19 doctoral scholarship extension. J.A.F. thanks the MacDiarmid Institute for funding a research assistant position. D.A.W.R. also thanks the University of Otago for a publishing bursary. Publisher Copyright: © 2021 Wiley-VCH GmbH

PY - 2022/2/16

Y1 - 2022/2/16

N2 - Three ferrocene-based rotary switches featuring 2-pyridyl-1,2,3-triazole (pytri) “click” chelates have been developed. The rotors can be switched from a folded (syn) to extended (anti) conformation by the addition of [Cu(CH3CN)4](PF6) and 6,6′-dimesityl-2,2′-bipyridine. This extension process could be reversed by the addition of 1,4,8,11-tetraazacyclotetradecane (cyclam) to sequester the Cu(I) ions. Disappointingly, the weakness of the pytri chelates prevented the development of an electrochemically switchable system.

AB - Three ferrocene-based rotary switches featuring 2-pyridyl-1,2,3-triazole (pytri) “click” chelates have been developed. The rotors can be switched from a folded (syn) to extended (anti) conformation by the addition of [Cu(CH3CN)4](PF6) and 6,6′-dimesityl-2,2′-bipyridine. This extension process could be reversed by the addition of 1,4,8,11-tetraazacyclotetradecane (cyclam) to sequester the Cu(I) ions. Disappointingly, the weakness of the pytri chelates prevented the development of an electrochemically switchable system.

KW - 2-Pyridyl-1,2,3-triazole

KW - Copper

KW - Ferrocene

KW - Molecular switching

KW - Rotors

UR - https://www.scopus.com/pages/publications/85122723157

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DO - 10.1002/ejic.202100948

M3 - Article

AN - SCOPUS:85122723157

SN - 1434-1948

VL - 2022

JO - European Journal of Inorganic Chemistry

JF - European Journal of Inorganic Chemistry

IS - 5

M1 - e202100948

ER -

Ferrocene Rotary Switches Featuring 2-Pyridyl-1,2,3-triazole “Click” Chelates

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