TY - JOUR
T1 - Formation of double helix self-assembled monolayers of ethynylhelicene oligomer disulfides on gold surfaces
AU - Yamamoto, Koji
AU - Sugiura, Hiroki
AU - Amemiya, Ryo
AU - Aikawa, Haruo
AU - An, Zengjian
AU - Yamaguchi, Masahiko
AU - Mizukami, Masashi
AU - Kurihara, Kazue
N1 - Funding Information:
This work was financially supported by a Grant-in-Aid for Scientific Research (No. 22790003 ), the GCOE program, and the WPI Initiative from JSPS . K.Y. and Z.A. express their appreciation for financial support from WPI-AIMR . H.A. expresses his appreciation for the financial support from International Advanced Research and Education Organization .
PY - 2011/8/19
Y1 - 2011/8/19
N2 - Optically active ethynylhelicene pentamers and hexamers linked by disulfide bonds were synthesized. They formed self-assembled monolayers (SAMs) with double helix structure on gold surfaces, which were analyzed by infrared reflection-absorption spectroscopy (IR-RAS), quartz crystal microbalance (QCM), surface plasmon resonance (SPR), and circular dichroism (CD). Double helix SAMs could be formed on gold surfaces either from double helices or random coils in solution. The double helices on the surface were more stable than in solution. This result suggested the presence of strong intercomplex interactions between double helix complexes on the surface.
AB - Optically active ethynylhelicene pentamers and hexamers linked by disulfide bonds were synthesized. They formed self-assembled monolayers (SAMs) with double helix structure on gold surfaces, which were analyzed by infrared reflection-absorption spectroscopy (IR-RAS), quartz crystal microbalance (QCM), surface plasmon resonance (SPR), and circular dichroism (CD). Double helix SAMs could be formed on gold surfaces either from double helices or random coils in solution. The double helices on the surface were more stable than in solution. This result suggested the presence of strong intercomplex interactions between double helix complexes on the surface.
KW - Double helix
KW - Ethynylhelicene oligomer
KW - Intercomplex interaction
KW - Self-assembled monolayer
KW - Thermal stability
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U2 - 10.1016/j.tet.2011.06.024
DO - 10.1016/j.tet.2011.06.024
M3 - Article
AN - SCOPUS:79960278269
SN - 0040-4020
VL - 67
SP - 5972
EP - 5978
JO - Tetrahedron
JF - Tetrahedron
IS - 33
ER -