TY - JOUR
T1 - Conformational Change in Molecular Assembly of Nickel(II) Tetra(n-propyl)porphycene Triggered by Potential Manipulation
AU - Yoshimoto, Soichiro
AU - Kawamoto, Teppei
AU - Okawara, Toru
AU - Hisaeda, Yoshio
AU - Abe, Masaaki
N1 - Funding Information:
This work was supported in part by a Grant-in-Aid for Scientific Research on Innovative Areas, “Coordination Programming”, Area 2107, No. 21108005, Japan, and Tokuyama Science Foundation. M.A. acknowledges the financial support from JSPS KAKENHI Grant Number JP16H06514 (Coordination Asymmetry).
Publisher Copyright:
© 2016 American Chemical Society.
PY - 2016/12/27
Y1 - 2016/12/27
N2 - Metal-coordinated porphyrin and related compounds are important for developing molecular architectures that mimic enzymes. Porphycene, a structural isomer of porphyrin, has shown unique properties in semiartificial myoglobin. To explore its potential as a molecular building block, we studied the molecular assembly of nickel(II) tetra(n-propyl)porphycene (NiTPrPc), a metalloporphycene with introduced tetra n-propyl moieties, on the Au(111) electrode surface using in situ scanning tunneling microscopy. Because of the low molecular symmetry of NiTPrPc, the molecular assembly undergoes unique phase transitions due to conformational change of the n-propyl moieties. The phase transitions can be precisely controlled by the electrode potential, demonstrating that the latter can play an important role in the porphycene molecular assembly on Au surface. This new discovery indicates possible uses of this porphycene framework in molecular engineering.
AB - Metal-coordinated porphyrin and related compounds are important for developing molecular architectures that mimic enzymes. Porphycene, a structural isomer of porphyrin, has shown unique properties in semiartificial myoglobin. To explore its potential as a molecular building block, we studied the molecular assembly of nickel(II) tetra(n-propyl)porphycene (NiTPrPc), a metalloporphycene with introduced tetra n-propyl moieties, on the Au(111) electrode surface using in situ scanning tunneling microscopy. Because of the low molecular symmetry of NiTPrPc, the molecular assembly undergoes unique phase transitions due to conformational change of the n-propyl moieties. The phase transitions can be precisely controlled by the electrode potential, demonstrating that the latter can play an important role in the porphycene molecular assembly on Au surface. This new discovery indicates possible uses of this porphycene framework in molecular engineering.
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U2 - 10.1021/acs.langmuir.6b03782
DO - 10.1021/acs.langmuir.6b03782
M3 - Article
AN - SCOPUS:85008499455
SN - 0743-7463
VL - 32
SP - 13635
EP - 13639
JO - Langmuir
JF - Langmuir
IS - 51
ER -