Document Detail


Entropy-Controlled 2D Supramolecular Structures of N,N'-Bis(n-alkyl)naphthalenediimides on a HOPG Surface.
MedLine Citation:
PMID:  22468777     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The two-dimensional supramolecular structures of a series of N,N'-bis(n-alkyl)naphthalenediimides (NDIs), whose chain lengths span from C3 to C18, at a liquid-HOPG surface interface, studied by STM and FM-AFM, are assigned with the help of molecular dynamics/molecular mechanics calculations to demonstrate that the C3- and C4-NDIs show lamellar structures, the C4- to C12-NDIs show honeycomb (KAGOME) structures, and the C14- to C18-NDIs show lamellar structures again. The change in supramolecular structure depending on chain length can be explained semi-quantitatively by the balance of entropy and enthalpy terms to show the importance of "self-avoiding walk" of the alkyl chain in entropy term.
Authors:
Yusuke Miyake; Toshi Nagata; Hirofumi Tanaka; Masashi Yamazaki; Masahiro Ohta; Ryhohei Kokawa; Takuji Ogawa
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-4-2
Journal Detail:
Title:  ACS nano     Volume:  -     ISSN:  1936-086X     ISO Abbreviation:  -     Publication Date:  2012 Apr 
Date Detail:
Created Date:  2012-4-3     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101313589     Medline TA:  ACS Nano     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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