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. Author manuscript; available in PMC: 2020 Dec 26.
Published in final edited form as: Adv Colloid Interface Sci. 2019 Dec 27;276:102090. doi: 10.1016/j.cis.2019.102090

Figure 5.

Figure 5.

(A) UV-Vis spectra of the “purified” [Au25(TPP)10(PET)5X2]2+ NC suspension and from its selectively separated compounds, y-offset for a better overview. The inset illustrates the broadening of Au25 NCs optical features by the presence of Au2/Au3 complexes. (B) Optical microscope image of Au25 NC crystals. (C) ESI-MS analysis of “purified” Au25 NC suspension and after selective purification. The inset shows the crystal structure of the main components (Au2 complex and Au25 NC). Reproduced from Ref. [55] with permission from The Royal Society of Chemistry.