Structural switching in self-assembled metal-ligand helicate complexes via ligand-centered reactions

Chemical Science
Lauren R HollowayRichard J Hooley

Abstract

Ligand centered reactions are capable of conferring structural switching between a metastable, self-assembled Fe-iminopyridine aggregate and a stable M2L3 helicate. The reactivity is directed and accelerated by the stability of the final product structure. Under aerobic conditions, both substitution and oxidation occurs at the ligand, exploiting atmospheric oxygen as the oxidant. In the absence of air, reaction occurs more slowly, forming the less stable substitution product. Control ligands show a preference for simple substitution, but the self-assembly directs both substitution and oxidation. The metastable nature of the initial aggregate species is essential for the reaction: while the aggregate is "primed" for reaction, other analogous helicate structures are "locked" by self-assembly, preventing reactivity.

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Citations

Feb 19, 2019·Chemistry : a European Journal·Aaron D W KennedyJonathon E Beves
Sep 27, 2019·Chemical Communications : Chem Comm·Jun-Ichi ItoHisao Nishiyama
Feb 18, 2017·Chemical Communications : Chem Comm·Soumen K SamantaLyle Isaacs
Oct 12, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Lauren R HollowayRichard J Hooley
May 5, 2017·Chemistry : a European Journal·Rupak SahaPartha Sarathi Mukherjee
Apr 19, 2018·Frontiers in Chemistry·Khushwant SinghNeeladri Das
Jun 24, 2017·Chemistry : a European Journal·Paramita DasPartha Sarathi Mukherjee
Feb 24, 2018·Chemical Communications : Chem Comm·Ettore FazioTomás Torres
Feb 15, 2018·Dalton Transactions : an International Journal of Inorganic Chemistry·Shumpei KaiShuichi Hiraoka
Oct 31, 2020·Chemical Communications : Chem Comm·Bryce da CamaraRichard J Hooley
Apr 21, 2021·Dalton Transactions : an International Journal of Inorganic Chemistry·Shigehisa Akine
Mar 3, 2017·Inorganic Chemistry·Bijan RoyPartha Sarathi Mukherjee
Jul 29, 2017·Journal of the American Chemical Society·Andrew J MusserJonathan R Nitschke
Mar 22, 2018·Inorganic Chemistry·Paul M BogieRichard J Hooley
Jul 10, 2018·Journal of the American Chemical Society·Derrick A RobertsJonathan R Nitschke

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Methods Mentioned

BETA
X-ray
NMR

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