Supramolecular photochemistry compounds

C. Minero, V. Maurino, E. Pelizzetti, Mechanism of the photocatalytic transformation of organic compounds, in V. Ramamurthy, K.S. Schanze (eds.), Semiconductor Photochemistry and Photophysics, Vol 10 of Molecular and Supramolecular Photochemistry, Marcel Dekker, New York, 2003, pp. 211-229. 

Mizuno K, Maeda H, Sugimoto A, Chiyonobu K. Photocycloaddition and photoaddition reactions of aromatic compounds. In Ramamurthy V, Schanze KS, eds. Molecular and Supramolecular Photochemistry. Vol 8. New York Marcel Dekker, Inc., 2001 127-316. 

Mizuno, K., Maeda, H., Sugimoto, A., Chiyonobu, K. Photocycioaddition and photoaddition reactions of aromatic compounds. Molecular and Supramolecular Photochemistry 2001, 8,127-241. 

Numerous luminescent compounds were demonstrated for their potential uses as centers/catalysts for photochemical syntheses — syntheses catalyzed by light (see also photochemical techniques and supramolecular photochemistry). Catalysts for photochemical reactions and syntheses are devices that convert photon energy to chemical energy (Fig. 4). In order to achieve a working photochemical... 

The photochemistry of aromatic compounds is classified into the same categories adopted in the previous reviews in the series. The photoisomerization of arylalkenes, photoaddition and cycloaddition to aromatic rings, photosubstitution, photorearrangement reactions have less appeared in the period (2010-2011) considered. On the other hand, the photo-chromism including photoisomerization of azobenzenes and intramolecular photocyclization and cycloreversion of 1,2-diarylethenes, and the photodimerization have been widely developed. Supramolecular Photochemistry as a series of Molecular and Supramolecular Photochemistry was edited by Ramamurthy and Inoue in the period. In addition, it should be noteworthy that so many photochemical reactions in solid and/or crystalline states have appeared and developed. 

Since the coining of the term supramolecular chemistry - defined as the chemistry of molecular assemblies and of the intermolecular bond by Lehn in 1978 - supramolecular chemistry has undergone a spectacular expansion. A wide variety of chemical systems have been developed, which, although different in nature to the former systems, currently are also considered as real supramolecular ensembles. One of most remarkable examples is the field of supramolecular photochemistry, where, in a broader sense, a supramolecular compound is defined as a group of molecular components that contribute properties, which each component possesses individually, to the whole assembly. 

Margaretha, R, Photochemistry of (S-hetero)cyclic unsaturated carbonyl compounds, in Molecular and Supramolecular Photochemistry, Vol. 1, Ramamurthy, V. and Schanze, K.S., Eds., Marcel Dekker, New York, 1997, p. 85. 

A special situation is encountered with metal-porphyrin or metal-phthalo-cyanine molecules that can be either deposited by sublimation under UHV conditions or in solution environments. For these macrocyclic compounds, free-base species exist, i.e., the metal centers are not required per se as a construction unit. The building of supramolecular structures that incorporate porphyrin subunits is of great interest to many research groups. The rich photochemistry and redox properties (e.g., photoinduced electron transfer, luminescence, and light harvesting) of porphyrins have driven this interest. Porphyrins or phtalocyanines have a rich coordination chemistry that allows the inclusion of many different metal centers at their macrocycle. They serve in many respects as a model system since this constitutes a low-coordination complex. Recent STM studies report on the organization of metal-coordinated or free-base porphyrins as well as phthalocyanines on... 

Pina. F. Parola, A.J. Photochemistry of supramolecular species involving anionic coordination compounds and polyammonium macrocyclic receptors. Coord. Chem. Rev. 1999. 185-186. 159-165. 

The role of photochemistry and photophysics in most applications of supramolecular chemistry is all important also with organic compounds. As an example, the system composed of a crown ether containing re-electron donating naphthalene units and a 2,7-diazapyrenium re-electron acceptor (see formulae below) associates with a large equilibrium constant in organic solution and yields a pseudorotaxane-type complex. 

This review deals with the photochemistry of alkenes, alkynes, dienes, polyenes, and related compounds through a choice of the literature published during the period January 2012-December 2013. This chapter also covers the nanotechnology and supramolecular chemistry utilizing isomerization/electrocyclization/cycloaddition reactions of the title compounds,... 

This review deals with the photochemistry of the title compounds and covers recent advances in the nanotechnology and supramolecular chemistry utilizing isomerization/electrocyclization/cycloaddition reactions. 

Balzani V, Scandola F (1991) Supramolecular Chemistry. Norwood, Chichester Lehn JM (1995) Supramolecular Chemistry. Verlag Chemie, Weinheim Yersin H,Vogler A (eds) (1987) Photochemistry and Photophysics of Coordination Compounds. Springer Verlag, Berlin... 

---