Effect of Central Metal Ion on Molecular Dipole in Porphyrin Self-Assembled Monolayers

2012 ◽  
Vol 4 (7) ◽  
pp. 729-732
Author(s):  
Mrunal A. Khaderbad ◽  
Manohar Rao ◽  
K. B. Jinesh ◽  
Rohit Pandharipande ◽  
S. Madhu ◽  
...  
Keyword(s):  
Metal Ion ◽  
Self Assembled Monolayers ◽  
Central Metal ◽  
Molecular Dipole ◽  
Assembled Monolayers ◽  
Self Assembled

Photoisomerization of azobenzene-substituted alkanethiolates on Au(111) substrates in the context of work function variation: the effect of structure and packing density

2019 ◽  
Vol 21 (18) ◽  
pp. 9098-9105 ◽  
Author(s):  
Swen Schuster ◽  
Matthias Füser ◽  
Andika Asyuda ◽  
Piotr Cyganik ◽  
Andreas Terfort ◽  
...  
Keyword(s):  
Work Function ◽  
Packing Density ◽  
Self Assembled Monolayers ◽  
Stimuli Responsive ◽  
Molecular Dipole ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Effect Of Structure

Novel azobenzene-substituted self-assembled monolayers were used for stimuli-responsive work function variation, with control of the molecular dipole and sterical constraints.

Electrochemical, spectroscopic and microscopic studies of new manganese phthalocyanine complexes in solution and as self-assembled monolayers on gold

2010 ◽  
Vol 14 (07) ◽  
pp. 568-581 ◽  
Author(s):  
Megan Coates ◽  
Edith Antunes ◽  
Tebello Nyokong
Keyword(s):  
Self Assembled Monolayers ◽  
Central Metal ◽  
Atomic Force ◽  
Redox Couples ◽  
Peripheral Position ◽  
Assembled Monolayers ◽  
Microscopic Studies ◽  
Ring Oxidation ◽  
Self Assembled ◽  
Electrochemical Microscopy

Four new manganese(III) phthalocyanines (3a–d), octasubstituted at the peripheral position with pentylthio, decylthio, benzylthio, and phenylthio groups, respectively, were synthesized. Their specific electrochemical, spectroscopic and microscopic properties in solution and as self-assembled monolayers on gold were characterized. The UV-vis spectra confirmed red-shifted Q bands for all the complexes, due to the effect of the central metal and the electron-donating substituents. Three redox couples were visible during cyclic voltammetry studies for the four complexes, and spectroelectrochemistry confirmed the couples as corresponding to MnIIIPc-2/MnIIPc-2 (II) (metal reduction), MnIIPc-2/MnIIPc-3 (III) (ring reduction) and MnIIIPc-1/MnIIIPc-2 (I) (ring oxidation). Electrochemistry was also used to determine the blocking characteristics of the MnPc self-assembled monolayers on gold, which proved to be highly dependent on the type of substituent. Other methods of characterization included Raman spectroscopy, atomic force and scanning electrochemical microscopy analyses of the SAMs.

Interfacial kinetic enhancement of metal ion adsorption on binary mixed self-assembled monolayers

2007 ◽  
Vol 253 (18) ◽  
pp. 7554-7558 ◽  
Author(s):  
Jungwoo Moon ◽  
Taewook Kang ◽  
Seogil Oh ◽  
Inhee Choi ◽  
Surin Hong ◽  
...  
Keyword(s):  
Metal Ion ◽  
Self Assembled Monolayers ◽  
Ion Adsorption ◽  
Metal Ion Adsorption ◽  
Assembled Monolayers ◽  
Self Assembled

Metal-Ion Adsorption on Carboxyl-Bearing Self-Assembled Monolayers Covalently Bound to Magnetic Nanoparticles

Langmuir ◽  
2005 ◽  
Vol 21 (7) ◽  
pp. 3104-3105 ◽  
Author(s):  
Bin Hai ◽  
Jun Wu ◽  
Xufang Chen ◽  
John D. Protasiewicz ◽  
Daniel A. Scherson
Keyword(s):  
Magnetic Nanoparticles ◽  
Metal Ion ◽  
Self Assembled Monolayers ◽  
Ion Adsorption ◽  
Metal Ion Adsorption ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Covalently Bound
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