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Helquat-Induced Chiroselective Aggregation of Au NPs
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SYSNO ASEP 0385610 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Helquat-Induced Chiroselective Aggregation of Au NPs Author(s) Balogh, D. (IL)
Zhang, Z. (IL)
Cecconello, A. (IL)
Vávra, Jan (UOCHB-X) RID
Severa, Lukáš (UOCHB-X) RID, ORCID
Teplý, Filip (UOCHB-X) RID, ORCID
Willner, I. (IL)Number of authors 7 Source Title Nano Letters. - : American Chemical Society - ISSN 1530-6984
Roč. 12, č. 11 (2012), s. 5835-5839Number of pages 5 s. Language eng - English Country US - United States Keywords nanoparticles ; chirality ; aggregation ; donor-acceptor interactions ; binaphthol phenylboronic acid ; helquat Subject RIV CC - Organic Chemistry R&D Projects GAP207/10/2391 GA ČR - Czech Science Foundation (CSF) Institutional support UOCHB-X - RVO:61388963 UT WOS 000311244400067 DOI https://doi.org/10.1021/nl303179s Annotation Au nanoparticles (NPs) are functionalized with chiral (R)- or (S)-binaphthol phenylboronic acid ligands, (1a) or (1b). The (R)- or (S)-binaphthol phenylboronic acid ligands form donor-acceptor complexes with the chiral dicationic helicene, helquat (P)-HQ2+ or (M)-HQ2+, (2a) or (2b). The association constants between (1a)/(2a) and (1a)/(2b) correspond to (7.0 +/- 0.5) x 105 M-1 and (2.5 +/- 0.3) x 105 M-1, respectively, whereas the association constants between (1b)/(2b) and (1b)/(2a) correspond to (4.0 +/- 0.5)x 105 M-1 and (1.8 +/- 0.3)x 105 M-1, respectively. Chiroselective aggregation of chiral binaphthol phenylboronic acid-capped Au NPs triggered by the chiral helquats, is demonstrated. Workplace Institute of Organic Chemistry and Biochemistry Contact asep@uochb.cas.cz ; Kateřina Šperková, Tel.: 232 002 584 ; Jana Procházková, Tel.: 220 183 418 Year of Publishing 2013
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