Ruthenium(II) and osmium(II) bis(terpyridine) complexes in covalently-linked multicomponent systems: Synthesis, electrochemical behavior, absorption spectra, and photochemical and photophysical properties

Journal Article · Wed Jun 01 00:00:00 EDT 1994 · Chemical Reviews; (United States)

DOI:https://doi.org/10.1021/cr00028a006· OSTI ID:7015466

Sauvage, J P; Collin, J P; Chambron, J C; Guillerez, S; Coudret, C ^[1]; Balzani, V; Barigelletti, F; Cola, L de; Flamigni, L ^[2]

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1. Univ. de Strasbourg (France). Lab. de Chimie Organo-minerale
2. Univ. di Bologna (Italy). Dipt. di Chimica Ist. FRAE-CNR, Bologna (Italy)

The interaction of photons with molecules can cause simple acts, such as a change in the molecular structure (isomerization), which can be exploited. For example, solar energy can be converted into chemical energy by transforming norbornadiene into its higher energy quadricyclane isomer. Supramolecular organization can be attained by intermolecular forces of various type (Coulombic interactions, hydrogen bonds, etc.) or by linking together molecular components by covalent bonds. By these routes it is possible to put together prefabricated molecular components that carry the desired light-related properties: absorption spectrum, excited-state lifetime, luminescence spectrum, excited-state redox properties, etc. This allows one to design structurally organized and functionally integrated systems (photochemical molecular devices, PMDs) capable of elaborating the energy and information input of photons to perform complex functions (light harvesting, conversion of light into chemical or electrical energy, collection of information in a molecular shift register, etc.). Sections of the paper discuss: natural vs. artificial photochemical molecular devices; molecular and supramolecular species; energy- and electron-transfer processes; bis(terpyridine)-metal complexes as photosensitizers; design of multicomponent systems; synthesis of the ligands; synthesis of dyads and triads based on Ru(tpy)[sub 2][sup 2+]-type photosensitizers; synthesis of dyads and traids based on Os(tpy)[sub 2][sup 2+]-type photosensitizers; synthesis of rigidly-bridged homo- and heterodinuclear complexes; energy- and electron-transfer processes in dinuclear metal complexes; and photoinduced charge separation in dyads and triads. 165 refs.

• OSTI ID: 7015466
• Journal Information: Chemical Reviews; (United States), Vol. 94:4; ISSN 0009-2665
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
OSMIUM COMPLEXES
ELECTROCHEMISTRY
PHOTOCHEMISTRY
PHYSICAL PROPERTIES
SYNTHESIS
RUTHENIUM COMPLEXES
ELECTRON TRANSFER
OPTICAL PROPERTIES
PHOTOSENSITIVITY
PYRIDINES
REVIEWS
SOLAR ENERGY CONVERSION
AZINES
CHEMISTRY
COMPLEXES
CONVERSION
DOCUMENT TYPES
ENERGY CONVERSION
HETEROCYCLIC COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
SENSITIVITY
TRANSITION ELEMENT COMPLEXES
400201* - Chemical & Physicochemical Properties
400400 - Electrochemistry
400500 - Photochemistry