Molecular rectification by a bimetallic Ru-Os compound anchored to nanocrystalline TiO{sub 2}
Supramolecular coordination compounds represent a new class of chromophores for sensitization of wide band gap semiconductors to visible light. The authors report the first proof-of-concept example with semiconductor-bound bimetallic coordination compounds that behave like molecular photodiodes: light promotes rapid electron transfer into and hole transfer away from the solid. The compound of interest is [Ru(dcb){sub 2}(Cl)-bpa-Os(bpy){sub 2}(Cl)]-(PF{sub 6}){sub 2}, abbreviated Ru-bpa-Os where dcb is 4,4{prime}-(COOH){sub 2}-2,2{prime}-bipyridine and bpa is 1,2-bis(4-pyridyl)ethane. An idealized structure of this coordination compound bound to TiO{sub 2}, abbreviated TiO{sub 2}{vert_bar}Ru-bpa-Os, is shown.
- Research Organization:
- Centro di Studio su Fotoreattivita e Catalisi CNR, Ferrara (IT)
- Sponsoring Organization:
- US Department of Energy
- OSTI ID:
- 20050824
- Journal Information:
- Inorganic Chemistry, Journal Name: Inorganic Chemistry Journal Issue: 7 Vol. 39; ISSN 0020-1669; ISSN INOCAJ
- Country of Publication:
- United States
- Language:
- English
Similar Records
The limiting role of iodide oxidation in cis-Os(dcb){sub 2}(CN){sub 2}/TiO{sub 2} photoelectrochemical cells
Spectroscopic, electrochemical, and spectroelectrochemical investigations of mixed-metal osmium(II)/ruthenium(II) bimetallic complexes incorporating polypyridyl bridging ligands
Photoinduced energy and electron transfer processes in supramolecular species. Tris(bipyridine) complexes of Ru(II)/Os(II), Ru(II)/Ru(III), Os(II)/Os(III), and Ru(II)/Os(III) separated by a rigid spacer
Journal Article
·
Thu Sep 24 00:00:00 EDT 1998
· Journal of Physical Chemistry B: Materials, Surfaces, Interfaces, amp Biophysical
·
OSTI ID:655388
Spectroscopic, electrochemical, and spectroelectrochemical investigations of mixed-metal osmium(II)/ruthenium(II) bimetallic complexes incorporating polypyridyl bridging ligands
Journal Article
·
Wed Apr 29 00:00:00 EDT 1992
· Inorganic Chemistry; (United States)
·
OSTI ID:6915650
Photoinduced energy and electron transfer processes in supramolecular species. Tris(bipyridine) complexes of Ru(II)/Os(II), Ru(II)/Ru(III), Os(II)/Os(III), and Ru(II)/Os(III) separated by a rigid spacer
Journal Article
·
Tue Nov 09 23:00:00 EST 1993
· Inorganic Chemistry; (United States)
·
OSTI ID:5035433