Unconventional Heterobidentate Coordination of 4‐Hydroxypyridine Leading to Remarkably Strong Second‐Harmonic Generation in Zn(C<sub>5</sub>H<sub>4</sub>NO)<sub>2</sub>

Herein, we report an unconventional heterobidentate coordination mode of conventional 4-hydroxypyridine ligand in a novel compound Zn(C<sub>5</sub>H<sub>4</sub>NO)<sub>2</sub>. The strong heterobidentate coordination interactions between Zn<sup>2+</sup> and 4-hydroxypyridine ligands promote a uniform alignment of the polarization of each [ZnO<sub>2</sub>N<sub>2</sub>] tetrahedral building unit, resulting in remarkably strong second-harmonic generation (SHG) with an intensity that is the largest among all UV-transparent Zn-containing metal-organic compounds reaching 13.6×KDP. Moreover, Zn(C<sub>5</sub>H<sub>4</sub>NO)<sub>2</sub> processes a suitable optical band gap of 4.40 eV, high thermal stability up to 300 °C, excellent air stability, and strong water resistance, demonstrating great application potential. Additionally, Zn(C<sub>5</sub>H<sub>4</sub>NO)<sub>2</sub> exhibits photoluminescence with a significantly enhanced lifetime of 558 ms, accompanied by a rare blue afterglow visible to the naked eye, lasting up to 5 s.

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Publication Details

Journal
Angewandte Chemie International Edition
Published
2024-11-26
DOI
https://doi.org/10.1002/anie.202420810
Citations
49
Primary Topic
Luminescence and Fluorescent Materials
Type
article
Field-Weighted Citation Impact
5.74

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article

Unconventional Heterobidentate Coordination of 4‐Hydroxypyridine Leading to Remarkably Strong Second‐Harmonic Generation in Zn(C5H4NO)2

Qi Wu, Zece Zhu, Yi Xiong, Can Yang et al.
49 citations
Angewandte Chemie International Edition
Luminescence and Fluorescent Materials
5.74
article

Unconventional Heterobidentate Coordination of 4‐Hydroxypyridine Leading to Remarkably Strong Second‐Harmonic Generation in Zn(C5H4NO)2

Qi Wu, Zece Zhu, Yi Xiong, Can Yang, Ling Chen, Yaolong Zhu, Jie Gou
article en
49 citations

Abstract

Herein, we report an unconventional heterobidentate coordination mode of conventional 4-hydroxypyridine ligand in a novel compound Zn(C<sub>5</sub>H<sub>4</sub>NO)<sub>2</sub>. The strong heterobidentate coordination interactions between Zn<sup>2+</sup> and 4-hydroxypyridine ligands promote a uniform alignment of the polarization of each [ZnO<sub>2</sub>N<sub>2</sub>] tetrahedral building unit, resulting in remarkably strong second-harmonic generation (SHG) with an intensity that is the largest among all UV-transparent Zn-containing metal-organic compounds reaching 13.6×KDP. Moreover, Zn(C<sub>5</sub>H<sub>4</sub>NO)<sub>2</sub> processes a suitable optical band gap of 4.40 eV, high thermal stability up to 300 °C, excellent air stability, and strong water resistance, demonstrating great application potential. Additionally, Zn(C<sub>5</sub>H<sub>4</sub>NO)<sub>2</sub> exhibits photoluminescence with a significantly enhanced lifetime of 558 ms, accompanied by a rare blue afterglow visible to the naked eye, lasting up to 5 s.

Angewandte Chemie International EditionVol. 64(9)
Beijing Normal University (CN), Wuhan Textile University (CN), Advanced Processing Technology (United States) (US)
National Natural Science Foundation of China, Fujian Institute of Research on the Structure of Matter
Clean water and sanitation
Openalex Percentile: Top 1%
Luminescence and Fluorescent Materials
5.74
DOIOpen Access PDFOpenAlex
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