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Graphical Abstract: Eur. J. Inorg. Chem. 36/2010
Publication year - 2010
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201090111
Subject(s) - chemistry , iridium , octahedron , crystallography , crystal structure , stereochemistry , catalysis , organic chemistry
The cover picture shows two Ir III complexes with adenine derivatives that have been synthesized and characterized by spectroscopic techniques and by single‐crystal X‐ray diffraction studies. The interaction of Ir III ‐adenine complexes and plasmidic DNA pBR322 has been analyzed. In all cases, iridium shows an octahedral geometry and is coordinated to four chlorido ligands, dimethyl sulfoxide (DMSO‐κS) and an adenine derivative. Two different coordination modes for adenine are observed, one through the N 7 (kinetic product, right side of the picture) and the other one through the N 9 atom (thermodynamic product, left side of the picture). Both mechanisms, which yield the different coordination products, have been studied by means of theoretical DFT calculations. Details are discussed in the article by A. García‐Raso, A. Frontera et al. on p. 5617 ff. The Christmas tree, which symbolizes the activation energy, is decorated with the crystal structure of an Ir III ‐adenine complex, where the iridium atoms represent the Christmas ball ornaments.