A self-assembled aluminium(iii) porphyrin cyclic trimer

2008 ◽  
pp. 588-590 ◽  
Author(s):  
Gerald A. Metselaar ◽  
Jeremy K. M. Sanders ◽  
Javier de Mendoza
Keyword(s):  
Cyclic Trimer ◽  
Self Assembled

Self-assembled coordination cage as a molecular flask

2005 ◽  
Vol 77 (7) ◽  
pp. 1107-1112 ◽  
Author(s):  
Michito Yoshizawa ◽  
Makoto Fujita
Keyword(s):  
Sol Gel ◽  
Photochemical Oxidation ◽  
Chemical Transformations ◽  
Synthetic Receptors ◽  
In Situ Preparation ◽  
Cyclic Trimer ◽  
Self Assembled ◽  
Host Chemistry ◽  
Molecular Flask

Cavity-directed chemical transformations represent one of the most important features in 3-D host chemistry, yet they are unexplored as synthetic receptors. We are developing such functions with the large cavity of self-assembled cages, particularly an M6L4-type cage. The photodimerization of olefins within this cage shows remarkable rate enhancement, perfect regio- and stereoselection, and high pairwise selection (when two different olefins are used) giving only the cross [2+2] adduct. Another intriguing property of the cavity is the stabilization of labile molecules by encapsulation. We succeeded in trapping labile molecules by in situ preparation from small components coming through small portals of the cage. For example, hydrolysis and condensation of PhSi(OMe)3, which ordinarily provides a sophisticated Si-O 3-D network (so-called sol-gel condensation), selectively gave a cyclic trimer, [PhSi(OH)O]3, in a "ship-in-a-bottle" fashion. Cavity-sensitized photochemical oxidation of alkanes within the cage is also discussed.

Dynamic equilibrium of self-assembled cyclic trimer and tetramer of 1-methyl-5-imidazolylcobalt(III)porphyrin

2005 ◽  
Vol 45 (3) ◽  
pp. 281-291 ◽  
Author(s):  
Akira Tanaka ◽  
Aya Ryuno ◽  
Saori Okada ◽  
Akiharu Satake ◽  
Yoshiaki Kobuke
Keyword(s):  
Dynamic Equilibrium ◽  
Cyclic Trimer ◽  
Self Assembled

Electrochemical behavior of self-assembled monolayers based on functionalized oligothiophenes

1998 ◽  
Vol 95 (6) ◽  
pp. 1339-1342 ◽  
Author(s):  
R. Michalitsch ◽  
A. El Kassmi ◽  
P. Lang ◽  
A. Yassar ◽  
F. Garnier
Keyword(s):  
Electrochemical Behavior ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled

Imaging of patterned self-assembled monolayers by scanning photoelectron microscopy

2003 ◽  
Vol 104 ◽  
pp. 459-462 ◽  
Author(s):  
R. Klauser ◽  
M. Zharnikov ◽  
I.-H. Hong ◽  
S.-C. Wang ◽  
A. Gölzhäuser ◽  
...  
Keyword(s):  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Scanning Photoelectron Microscopy ◽  
Self Assembled

Magnetotunneling spectroscopy imaging of electron wave functions in self-assembled InAs quantum dots

2001 ◽  
Vol 171 (12) ◽  
pp. 1365
Author(s):  
E.E. Vdovin ◽  
Yu.N. Khanin ◽  
Yu.V. Dubrovskii ◽  
A. Veretennikov ◽  
A. Levin ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Wave Functions ◽  
Electron Wave ◽  
Inas Quantum Dots ◽  
Self Assembled
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