In Situ Scanning Tunneling Microscopic Investigation of the Two-Dimensional Ordering of Different Alkyl Chain-Substituted Quinacridone Derivatives at Highly Oriented Pyrolytic Graphite/Solution Interface

Langmuir ◽  
2003 ◽  
Vol 19 (3) ◽  
pp. 678-681 ◽  
Author(s):  
Dengli Qiu ◽  
Kaiqi Ye ◽  
Yue Wang ◽  
Bo Zou ◽  
Xi Zhang ◽  
...  
Keyword(s):  
Alkyl Chain ◽  
Pyrolytic Graphite ◽  
Microscopic Investigation ◽  
Scanning Tunneling ◽  
Two Dimensional ◽  
Highly Oriented Pyrolytic Graphite ◽  
Solution Interface

scholarly journals The interface between HOPG and 1-butyl-3-methyl-imidazolium hexafluorophosphate

2016 ◽  
Vol 18 (2) ◽  
pp. 916-925 ◽  
Author(s):  
C. Müller ◽  
K. Németh ◽  
S. Vesztergom ◽  
T. Pajkossy ◽  
T. Jacob
Keyword(s):  
Cyclic Voltammetry ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Scanning Tunneling Microscopy ◽  
Electrochemical Impedance ◽  
Pyrolytic Graphite ◽  
Scanning Tunneling ◽  
Highly Oriented Pyrolytic Graphite ◽  
Tunneling Microscopy

The interface between highly oriented pyrolytic graphite (HOPG) and 1-butyl-3-metyl-imidazolium hexafluorophosphate (BMIPF6) has been studied using cyclic voltammetry, electrochemical impedance spectroscopy, immersion charge measurements and in situ scanning tunneling microscopy (in situ STM).

Two solvent-induced variable host–guest two-dimensional binary frameworks mediated by hydrogen bonding

2019 ◽  
Vol 21 (17) ◽  
pp. 8940-8944 ◽  
Author(s):  
Wei Li ◽  
Shenyu Qiu ◽  
Chengyong Xu ◽  
Junping Hu ◽  
Xiaoling Chen
Keyword(s):  
Hydrogen Bonding ◽  
Scanning Tunneling Microscopy ◽  
Octanoic Acid ◽  
Pyrolytic Graphite ◽  
Scanning Tunneling ◽  
Heptanoic Acid ◽  
Two Dimensional ◽  
Highly Oriented Pyrolytic Graphite ◽  
Tunneling Microscopy ◽  
Benzenetricarboxylic Acid

Two-dimensional binary hydrogen-bonded organic frameworks constructed from 1,3,5-benzenetricarboxylic acid (TMA) and 4,4′-biphenyldicarboxylic acid (BDA) on highly oriented pyrolytic graphite (HOPG) were investigated by scanning tunneling microscopy (STM) in heptanoic acid and octanoic acid solvents.

Template mediated crystal engineering

1994 ◽  
Vol 52 ◽  
pp. 480-481
Author(s):  
Brigid R. Heywood ◽  
S. Champ
Keyword(s):  
Crystal Engineering ◽  
Electrostatic Interactions ◽  
Alkyl Chain ◽  
Crystallographic Axis ◽  
Two Dimensional ◽  
Engineering Process ◽  
Solution Interface ◽  
Extensive Program ◽  
Geometric Homology ◽  
Long Alkyl Chain

Recent work on the crystallisation of inorganic crystals under compressed monomolecular surfactant films has shown that two dimensional templates can be used to promote the oriented nucleation of solids. When a suitable long alkyl chain surfactant is cast on the crystallisation media a monodispersied population of crystals forms exclusively at the monolayer/solution interface. Each crystal is aligned with a specific crystallographic axis perpendicular to the plane of the monolayer suggesting that nucleation is facilitated by recognition events between the nascent inorganic solid and the organic template.For example, monolayers of the long alkyl chain surfactant, stearic acid will promote the oriented nucleation of the calcium carbonate polymorph, calcite, on the (100) face, whereas compressed monolayers of n-eicosyl sulphate will induce calcite nucleation on the (001) face, (Figure 1 & 2). An extensive program of research has confirmed the general principle that molecular recognition events at the interface (including electrostatic interactions, geometric homology, stereochemical complementarity) can be used to promote the crystal engineering process.

Sign in / Sign up

Export Citation Format

Share Document