A Novel Co(II) Coordination Compound Fluorescent Probe for Visual, Rapid, and Selective Detection of Hydrazine Hydrate
Abstract A novel Co(II) coordination compound fluorescent probe [Co(bim)2(SCN)2] (bim = benzimidazole, SCN− = thiocyanate) 1 was synthesized by the room-temperature diffusion method using benzimidazole (bim) and amine thiocyanate (NH4SCN) as ligands. The suspension of compound 1 exhibited good fluorescence stability. In addition, compound 1 exhibited a visual fluorescence quenching effect on hydrazine hydrate (N2H4·H2O), with a high quenching constant, a low detection limit (LOD) of 0.544 μM, a high quenching efficiency, a response time of only 4 s, and good cycling stability. Furthermore, the quenching mechanism for N2H4·H2O was discussed, which is attributed to the energy transfer between bim of compound 1 and N2H4·H2O.
Authors
- Juan Jin (ORCID: https://orcid.org/0009-0002-9754-900X)
- Wenfu Yan (ORCID: https://orcid.org/0000-0002-1000-6559)
- Baiqing Yuan (ORCID: https://orcid.org/0000-0001-9571-6076)
- Gang Wang (ORCID: https://orcid.org/0009-0000-6865-1430)
- Ziqi Liu (ORCID: https://orcid.org/0000-0003-2067-5710)
- Peng Wang (ORCID: https://orcid.org/0000-0002-1948-0572)
- Zhao-Yan Li
- Yu-Wan Jiao
- Zhi-Jia Lu
- Guang-Ze Li
Institutions
- Shandong University (CN)
- Ludong University (CN)
- Jilin University (CN)
- University of California System (US)
Publication Details
- Journal
- Crystal Growth & Design
- Published
- 2026-10-28
- DOI
- https://doi.org/10.1021/acs.cgd.6c00345
- Primary Topic
- Molecular Sensors and Ion Detection
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- Natural Science Foundation of Shandong Province