Document Detail


Helquat-Induced Chiroselective Aggregation of Au NPs.
MedLine Citation:
PMID:  23043392     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
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 (4.6 ± 0.5)x 105 M-1 and (1.8 ± 0.3)x 105 M-1, respectively. Chiroselective aggregation of chiral binaphthol phenylboronic acid capped NPs and the chiral helquats is demonstrated.
Authors:
Dora Balogh; Zhanxia Zhang; Alessandro Cecconello; Jan Vavra; Lukas Severa; Filip Teply; Itamar Willner
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-8
Journal Detail:
Title:  Nano letters     Volume:  -     ISSN:  1530-6992     ISO Abbreviation:  Nano Lett.     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-9     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101088070     Medline TA:  Nano Lett     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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