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Cover Picture: Discrete Supramolecular Assemblies of Porphyrins Mediated by Coordination Compounds (Eur. J. Inorg. Chem. 13/2003)
Author(s) -
Iengo Elisabetta,
Zangrando Ennio,
Alessio Enzo
Publication year - 2003
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200390227
Subject(s) - supramolecular chemistry , chemistry , porphyrin , ruthenium , chromophore , crystallography , metal , self assembly , nanoscopic scale , coordination complex , adduct , cover (algebra) , nanotechnology , photochemistry , crystal structure , organic chemistry , catalysis , materials science , mechanical engineering , engineering
The cover picture shows the X‐ray structure of an unprecedented supramolecular assembly comprising four porphyrins and six metal atoms (two Ru and four Zn); this very stable and symmetrical architecture was obtained by spontaneous self‐assembly through four 4′‐N(py)−Zn interactions of two equal bis(porphyrin)ruthenium self‐complementary building blocks. The design of this and other robust and shape‐persistent assemblies, obtained by coordination of meso ‐pyridylporphyrins to ruthenium, palladium and zinc centers, is comprehensively discussed in the microreview by E. Alessio et al. on p. 2371 ff. NMR spectroscopy and X‐ray crystallography were used jointly for the unambiguous characterization of the new species in solution and solid state, respectively. Very often the adducts of nanoscopic dimensions, in which the number, position, relative distance and orientation of the chromophores is well defined, were obtained through hierarchical supramolecular self‐assembly: multi‐porphyrin components were used as building blocks for the metal‐mediated assembly of more elaborate architectures.