Photofunctional Transition Metal Complexes by Alan L. Balch (auth.), Vivian W. W. Yam (eds.)

By Alan L. Balch (auth.), Vivian W. W. Yam (eds.)

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"This booklet is a set of six well-illustrated, autonomous chapters dedicated to appropriate subtopics. … total, this selection of stories is most fitted to experts, since it grants much less at the basics of luminescent transition steel complexes and extra at the fascinating advancements on chosen components. … during this recognize, the amount truly succeeds via supplying updated details on a variety of very important subtopics in a transparent demeanour that could be anticipated to encourage new instructions in photofunctional inorganic chemistry." (William B. Connick, JACS, Vol. one hundred thirty (12), 2008)

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In this respect, this very recent aspect of the molecular machine area goes back to the previous work mentioned at the beginning of the introduction, dealing with preparative photochemistry. The main difference holds in the complexity of the ligand backbones now utilized to construct the molecular machines in question. 2 Charge Separation on Derivatives of Ir(terpy)3+ 2 Used as Electron Relay or Photoactive Centre We will review here work wherein several types of species incorporate the Ir-bis-terpy unit and derivatives.

In fact, only one case has been reported wherein the use of bidentate ligands might be amenable to the construction of the sought for linear arrangement of multicentre species; this occurs when a helical bis-phen ligand (which actually behaves as a tetradentate ligand) is coordinated to a Ru(II) centre, 122+ (Fig. 6) [31]. Unfortunately, most Ru(II)-bis-terpy type complexes are poor luminophores [26], even if several preparative approaches have afforded species with Fig. 6 Chemical structure of compounds 122+ 54 E.

The halide ions are hydrogen bonded to ligand N – H groups of the cations and to water molecules as seen in Fig. 27. The luminescence of these dimers occurs at a higher energy than Gold(I) Luminescence 29 Fig. 26 A view of the structure of [AuI {C(NHMe)2 }2 ](BF4 ) which shows the offset nature of the stacking of the cations. From [48] Fig. 27 A view of the structure of [AuI {C(NHMe)2 }2 ]X · H2 O (X = Cl or Br) which shows two dimers and their interactions with the anions and water molecules. From [49] that observed in the extended chains of the same cation in the corresponding (PF6 )– and (BF4 )– salts and shows the important effects of aggregation on the observed luminescence.

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