Electrochemistry and spectroelectrochemistry of substituted tetrabenzotriazaporphine

1993 ◽  
Vol 71 (5) ◽  
pp. 742-753 ◽  
Author(s):  
Yu-Hong Tse ◽  
Alok Goel ◽  
Mougang Hu ◽  
A. B. P. Lever ◽  
C. C. Leznoff ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Electronic Spectra ◽  
Alkyl Chain ◽  
Metal Free ◽  
Porphyrin Derivatives ◽  
Redox Couples ◽  
Spectral And Electrochemical Properties ◽  
Long Alkyl Chain

The spectral and electrochemical properties of tetrabenzo[5,10,15]triazaporphine (TBTAP) and its magnesium derivatives having a long alkyl chain attached to the meso carbon have been studied. Both metal-free and metallated species show typical metal-free phthalocyanine-like spectra. Two reduction and two oxidation redox couples have been observed. The cation, anion, and dianion species of these porphyrin derivatives have been electrochemically generated and their electronic spectra are recorded.

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.

X-ray Crystallographic Study of Alkylammonium Anthracene-9-carboxylates as a Model for Fibrous Structure of Binary Anthracene Salt Gels

2004 ◽  
Vol 69 (6) ◽  
pp. 1292-1300 ◽  
Author(s):  
Tahahiro Tani ◽  
Kazuki Sada ◽  
Masatsugu Ayabe ◽  
Yuya Iwashita ◽  
Takanori Kishida ◽  
...  
Keyword(s):  
Alkyl Chain ◽  
Columnar Structure ◽  
Hydrogen Bond Network ◽  
One Dimensional ◽  
X Ray ◽  
Crystallographic Study ◽  
Alkylammonium Salts ◽  
Bond Network ◽  
Fibrous Assemblies ◽  
Long Alkyl Chain

Crystal structure of hexylammonium anthracene-9-carboxylate was investigated. The salt was arranged by a one-dimensional hydrogen bond network to form a columnar structure in the crystalline state. This columnar structure should be the model of fibrous assemblies in the organogels of anthracene-9-carboxylate alkylammonium salts having a long alkyl chain.

Relationship between mesoscale dynamics and shear relaxation of ionic liquids with long alkyl chain

2012 ◽  
Vol 137 (10) ◽  
pp. 104511 ◽  
Author(s):  
Tsuyoshi Yamaguchi ◽  
Ken-ichi Mikawa ◽  
Shinobu Koda ◽  
Kenta Fujii ◽  
Hitoshi Endo ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Alkyl Chain ◽  
Mesoscale Dynamics ◽  
Shear Relaxation ◽  
Long Alkyl Chain

A theoretical study on the spectral and electrochemical properties of Ferrocene in different solvents

2013 ◽  
Vol 407 ◽  
pp. 82-90 ◽  
Author(s):  
Gianfranco Cattenacci ◽  
Massimiliano Aschi ◽  
Giuseppe Graziano ◽  
Andrea Amadei
Keyword(s):  
Electrochemical Properties ◽  
Theoretical Study ◽  
Spectral And Electrochemical Properties

Long alkyl chain quaternary ammonium-based ionic liquids and potential applications

2006 ◽  
Vol 8 (9) ◽  
pp. 798 ◽  
Author(s):  
Juliusz Pernak ◽  
Marcin Smiglak ◽  
Scott T. Griffin ◽  
Whitney L. Hough ◽  
Timothy B. Wilson ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Quaternary Ammonium ◽  
Alkyl Chain ◽  
Potential Applications ◽  
Long Alkyl Chain
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