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Issue 93, 2020
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Constructing a four-input molecular keypad lock with a multi-stimuli-responsive phthalocyanine

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Abstract

A novel conjugate of a zinc(II) phthalocyanine with three 2,4-dinitrobenzenesulfonate (DNBS) substituents, a bis(ferrocenylethenyl) boron dipyrromethene (BODIPY) and a pyrene connected respectively via an acid-sensitive ketal bridge and a singlet oxygen-cleavable thioketal linker has been designed and synthesised. It is responsive towards four stimuli, including glutathione (GSH), acid and light sources at a wavelength of >610 nm and 345 nm in a sequence-dependent manner, enabling it to function as a molecular keypad lock with the four inputs. This work represents a proof-of-concept study using specially designed molecules to perform complicated sequential logic operations.

Graphical abstract: Constructing a four-input molecular keypad lock with a multi-stimuli-responsive phthalocyanine

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Article information


Submitted
16 Sep 2020
Accepted
02 Nov 2020
First published
03 Nov 2020

Chem. Commun., 2020,56, 14601-14604
Article type
Communication

Constructing a four-input molecular keypad lock with a multi-stimuli-responsive phthalocyanine

S. Y. Y. Ha and D. K. P. Ng, Chem. Commun., 2020, 56, 14601
DOI: 10.1039/D0CC06251K

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