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Issue 16, 2020
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Zn(ii) phthalocyanines tetra substituted by aryl and alkyl azides: design, synthesis and optical detection of H2S

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Abstract

Two novel Zn(II)-phthalocyanines having: (i) aryl azide (3) and (ii) alkyl azide (7) functional groups at the peripheral positions have been designed/synthesized for hydrogen sulfide (H2S) sensing purposes, and their photocharacteristic properties were investigated in DMSO and THF. In these designs, we aimed to understand the effect of the groups (aryl or alkyl) bonding azide groups on the H2S sensitivity. The reduction of four azide groups on compound 3 changed the characteristics of the zinc phthalocyanine core, and it led to the appearance of a new band with a 32 nm bathochromic spectral shift in the absorption band and 88% emission quenching of 3 compared to the original intensity. The detection limits were determined to be 0.14 and 0.68 μM in DMSO and THF, respectively. Besides, compound 7 did not show any response towards H2S.

Graphical abstract: Zn(ii) phthalocyanines tetra substituted by aryl and alkyl azides: design, synthesis and optical detection of H2S

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Supplementary files

Article information


Submitted
21 Jan 2020
Accepted
25 Mar 2020
First published
26 Mar 2020

New J. Chem., 2020,44, 6285-6296
Article type
Paper

Zn(II) phthalocyanines tetra substituted by aryl and alkyl azides: design, synthesis and optical detection of H2S

M. Albakour, M. Zeyrek Ongun, S. Z. Topal and A. G. Gürek, New J. Chem., 2020, 44, 6285
DOI: 10.1039/D0NJ00383B

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