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ChemComm
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COMMUNICATION
Journal Name
K. Jie and F. Huang, Chem. Rev., 2015,D1O1I5: 1,07.1204309-/7C380C3C;0(4e9)0Q5J.
relative particle densities (RD) of PASS were calculated (Table 1,
see the details in SI). A good correlation was observed between
the RD and Φ for all PASS (Fig. 4), confirming the validity of using
the fluorescence capability of AIEE-active materials to monitor
the density of nanostructure.
D. Hu, G. P. Tang and P. K. Chu, Acc. Chem. Res., 2014, 47
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,
,
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2017, 46, 6600-6620; (h) J. Murray, K. Kim, T. Ogoshi, W. Yao
and B. C. Gibb, Chem. Soc. Rev., 2017, 46, 2479-2496; (i) X. Ma
and H. Tian, Acc. Chem. Res., 2014, 47, 1971-1981; (j) D.
Prochowicz, A. Kornowicz and J. Lewiński, Chem. Rev., 2017,
117, 13461-13501; (k) J. Shen, C. Ren and H. Zeng, J. Am. Chem.
Soc., 2017, 139, 5387-5396; (l) Y. Huo and H. Zeng, Acc. Chem.
Res., 2016, 49, 922-930; (m) X. Liu, K. Jia, Y. Wang, W. Shao, C.
Yao, L. Peng, D. Zhang, X. Y. Hu and L. Wang, ACS Appl. Mater.
Upon addition of adiponitrile to the G3-2
emission of PASS decreased gradually (Fig. S33), because of the
formation of adiponitrile P1 and the dissociation of PASS (see
TEM images in Fig. S34). The K of (2.03 ± 0.03) × 103 M-1 was
obtained for adiponitrile P1 in acetone using a nonlinear fitting
⊂P1 system, the
⊂
⊂
model (SI), which is the same as (2.4 ± 0.3) × 103 M-1 reported.8
This result further confirmed the utility and validity of the
binding studies in the nanostructure using the signal of AIEE.
In conclusion, a novel pillar[5]arene-based linear polymer
with AIEE properties (P1), as well as a series of multitopic guests
with cyano-triazole branches (GMs), were synthesized and used
to build a system of polymeric AIEE-tunable and size-tunable
supraspheres (PASS). The concentration dependence of AIEE
signals of PASS was employed to determine the relative
fluorescence quantum yield (Φ) of the complexes as well as the
Interfaces, 2017, 9, 4843-4850; (n) Z. Liu, S. K. M. Nalluri and
J. F. Stoddart, Chem. Soc. Rev., 2017, 46, 2459-2478; (o) Y.
Wang, J. Sun, Z. Liu, M. S. Nassar, Y. Y. Botros and J. F. Stoddart,
Chem. Sci., 2017,
L. Perez, B. G. Caulkins, M. Mettry, L. J. Mueller and R. J.
Hooley, Chem. Sci., 2018, , 1836-1845.
8, 2562-2568.
3
4
9
(a) J. Luo, Z. Xie, J. W. Lam, L. Cheng, H. Chen, C. Qiu, H. S.
Kwok, X. Zhan, Y. Liu, D. Zhu and B. Z. Tang, Chem. Commun.,
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021307; (d) M. Zhang, S. Yin, J. Zhang, Z. Zhou, M. L. Saha, C.
Lu and P. J. Stang, Proc. Natl. Acad. Sci. U. S. A., 2017, 114
4,
binding affinity (K) between GMs and the repeating units of P1
.
,
The values of K and Φ depended not only on the molecular
structure of the guest but also on the concentration of the host.
The size and AIEE ability of PASS were characterized by DLS,
SEM, m-NTA and fluorometry. Moreover, the relative densities
of PASS were obtained using m-NTA. The particle size, the AIEE
ability, and the density of the nanoparticle were correlated with
3044-3049; (e) X. Yan, M. Wang, T. R. Cook, M. Zhang, M. L.
Saha, Z. Zhou, X. Li, F. Huang and P. J. Stang, J. Am. Chem. Soc.,
2016, 138, 4580-4588; (f) M. Jiang, X. Gu, R. T. K. Kwok, Y. Li,
H. H. Y. Sung, X. Zheng, Y. Zhang, J. W. Y. Lam, I. D. Williams,
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Φ, but not with K. As a result, although G3-2
significantly lower binding affinity than G3-1 P1
⊂
P1 had
5
⊂
,
G3-2⊂P1
formed a tighter, smaller, and brighter PASS because of its more
rigid structure. This study showcased a strategy to use AIEE to
quantify the host-guest binding in nanosystems and assists in
understanding the correlations between the molecular
structure of host and guest, the fundamental host-guest binding
in the nanostructures, and the properties of the nanostructures.
The authors thank the National Key Research and
Development Program of China (2016YFA0602900), the NSFC
(21772045, 21572069), and the Guangdong NSF
(2015A030313209, 2016A030311034). H.T. is grateful to the
SCUT “Xinghua Scholar Talent Program”. Special thanks to Jijun
Wang, Wang Zheng, Ling Zhou, and the MANTA Instruments, Inc.
team for their generous assistance with the m-NTA experiments.
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2018, 30, e1800177.
6
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Conflicts of interest
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