A Facile Route to Bimetallic Ruthenium Dipyridophenazine Complexes
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- 作者：Clive Metcalfe ; Ihtshamul Haq ; and Jim A. Thomas
- 刊名：Inorganic Chemistry
- 出版年：2004
- 出版时间：January 12, 2004
- 年：2004
- 卷：43
- 期：1
- 页码：317 - 323
- 全文大小：147K
- 年卷期：v.43,no.1(January 12, 2004)
- ISSN：1520-510X
文摘
Using achiral coordinatively unsaturated metal complex building-blocks, the two step synthesis of a bimetallic complexcontaining independent [RuIIdppz] units tethered together by a linking 4,4'dipyridyl-1,5-pentane ligand is reported.Photophysical studies on this prototype system indicate that the characteristic luminescence of the [RuIIdppz] moietiesis perturbed by self-quenching processes. Preliminary binding studies on the complex with natural and syntheticduplex DNA is reported. Luminescence and calorimetric titrations reveal that the complex does not show enhancedbinding affinity with respect to analogous monometallic complexes. This result is interpreted by a consideration ofthe length and rigidity of the linker employed in the complex.