J Fluoresc
Hildebrand eq. (1), K = 2.7 × 106 (Fig. S10). Thus, the sensor
can be used as a selective fluorescent sensor for the detection
of micromolar concentrations of Zn2+ in many chemical and
biological systems [45, 46].
17. Hagimori M, Temma T, Mizuyama N, Uto T, Yamaguchi Y,
Tominaga Y, Mukai T, Saji H (2015) Sensors Actuat Chem-B
213:45–52
18. Kawakami TM, Kawata K, Nakamura S, Koyama Y, Shibutani Y
(2014) Tetrahedron 70:9805–9813
19. Shi YP, Chen ZH, Cheng X, Pan Y, Zhang H, Zhang ZM, Li CW, Yi
CQ (2014) Biosens Bioelectron 61:397–403
20. Shellaiah M, Wu YH, Lin HC (2013) Analyst 138:2931–2942
21. Zhao CC, Zhang YL, Feng P, Cao J (2012) Dalton Trans 41:831–
838
Conclusions
22. Zhou XY, Yu BR, Guo YL, Tang XL, Zhang HH, Liu WS (2010)
Inorg Chem 49:4002–4007
23. Lin HY, Cheng PY, Wan CF, Wu AT (2012) Analyst 137:4415–
4417
24. Zhang CL, Liu ZP, Li YL, He WJ, Gao X, Guo ZJ (2013) Chem
Commun 49:11430–11432
25. Xu H, Wang ZP, Li Y, Ma SJ, Hu PY, Zhong XH (2013) Analyst
138:2181–2191
26. Li PX, Zhou XY, Huang RY, Yang LZ, Tang XL, Dou W, Zhao QQ,
Liu WS (2014) Dalton Trans 43:706–713
27. Xue L, Liu Q, Jiang H (2009) Org Lett 11:3454–3457
28. Li M, Lu HY, Liu RL, Chen JD, Chen CF (2012) J Organomet
Chem 77:3670–3673
In summary, we have developed two simple coumarin-based
receptors for selective detection of Zn2+. HL1 has the better
fluorescent property and better selectivity for the detection of
Zn2+ compare with the sensor HL2. We proposed the benzene
ring and naphthalene ring have different effect on the efficien-
cy of charge transfer and the electron configuration. In addi-
tion, the receptor HL1 exhibited a strong, increasing fluores-
cent fluorescence enhancement which might be attributed to
attribute to the formation of a 2:1 stoichiometric L-Zn com-
plex which inhibits photo-induced electron transfer process.
29. Zhou XY, Li PX, Shi ZH, Tang XL, Chen CY, Liu WS (2012) Inorg
Chem 51:9226–9231
30. Nguyen DM, Frazer A, Rodriguez L, Belfleld KD (2010) Chem
Mater 22:3472–3481
31. Gautam B, Manisha S, Aruna C, Madhu C (2014) J Colloid
Interface Sci 416:151–160
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