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Benzothiazolylhydrazone-Based Turn-on Fluorescent Probe for Detecting Cu2+: S-donor as a Cu2+-induced Fluorescence Quenching Inhibitor

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Benzothiazolylhydrazone-based turn-on fluorescent probe for detecting Cu

2+

: S-donor as a Cu

2+

-induced

fluorescence quenching inhibitor

Qiao Li, Yang Zhao and Enju Wang*

1 Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Key Laboratory of

Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry & Chemical Engineering, Hainan Normal University, Haikou, 571158, China

*Corresponding author: Email: enjuwang@163.com

Fig. S1. 1H NMR spectrum of 1

(2)

Fig. S2. 13C NMR spectrum of 1

Fig. S3. ESI-MS spectrum of 1 in positive ion mode [M+H]+, m/z =351.9

(3)

Fig. S4. ESI-MS spectrum of 1 in negative ion mode.

[M-H]-, m/z = 349.8

Fig. S5. ESI-MS spectrum of 2a in positive ion mode [M+H]+, m/z =351.0

(4)

Fig. S6. ESI-MS spectrum of 2a in negative ion mode.

[M-H]-, m/z = 348.9

Fig. S7. 1H NMR spectrum of 2b

(5)

Fig. S8. 13C NMR spectrum of compound 2b

Fig. S9. ESI-MS spectrum of 2b in positive ion mode [M+H]+, m/z =421.0

Reference

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