Molecular brakes based on the Zn(ii) porphyrin dimer†
Ivan N.
Meshkov, 
ab
Yulia G.
Gorbunova,
*bc
Anna A.
Sinelshchikova,
b
Mikhail S.
Grigoriev,
b
Mir Wais
Hosseini
*a
ab
Yulia G.
Gorbunova,
*bc
Anna A.
Sinelshchikova,
b
Mikhail S.
Grigoriev,
b
Mir Wais
Hosseini
*a
Abstract
Two types of molecular brakes based on two Zn–porphyrin units interconnected by a spacer are described. Their dynamic behaviour in solution at room temperature was studied by UV-Vis spectroscopy. In the absence of an external effector, the brake undergoes free rotation, whereas in the presence of an external effector, the rotational process may be hindered. The locking/unlocking processes are shown to be reversible.
- This article is part of the themed collection: Equilibrium Solution Coordination Chemistry
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