Molecules in Motion: From Sub-Nanoscale to Macroscale

Molecules in Motion: From Sub-Nanoscale to Macroscale

Ruthenium polypyridine complexes comprising sulfoxide ligands show dramatic photochromic behavior based on phototriggered S→O and O→S isomerization. Quantum yields of isomerization can be large, indicating that the excited‐state bond‐breaking and bond‐making reactions are efficient. Ultrafast transi...

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Bibliographic Details
Published in:Israel journal of chemistry Vol. 53; no. 5; pp. 280 - 287
Main Authors: Jin, Yuhuan, Rack, Jeffrey J.
Format: Journal Article
Language:English
Published: Weinheim WILEY-VCH Verlag 01-05-2013
WILEY‐VCH Verlag
Wiley Subscription Services, Inc
Subjects:
Absorption spectroscopy
Adiabatic flow
Bending
Bonding
Isomerization
Ligands
photochromism
Photonics
polymers
Ruthenium
sulfoxides
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Summary:Ruthenium polypyridine complexes comprising sulfoxide ligands show dramatic photochromic behavior based on phototriggered S→O and O→S isomerization. Quantum yields of isomerization can be large, indicating that the excited‐state bond‐breaking and bond‐making reactions are efficient. Ultrafast transient absorption spectroscopy reveals both adiabatic and non‐adiabatic isomerization mechanisms. Incorporation of these complexes within polymer matrices leads to macroscopic bending of the polymer in an example of a direct transduction of photonic energy to mechanical energy.
Bibliography:ArticleID:IJCH201300020
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content type line 23
ISSN:0021-2148
1869-5868
DOI:10.1002/ijch.201300020