Phototriggered Ru(II)−Dimethylsulfoxide Linkage Isomerization in Crystals and Films
Abstract
Photochromic materials are of interest because of their potential applications in optical information storage devices. Measurements on photochromic sodium nitroprusside (Na_2[Fe(CN)_5(NO)]) indicate that two metastable states are formed by irradiations of the crystalline solid: the first is an isonitrosyl (O-bonded NO); the second is an η^2-NO (side-on) complex. Phototriggered linkage isomerizations also occur in dimethylsulfoxide (dmso) complexes: notably, both photochemical Ru−S → Ru−O and thermal Ru−O → Ru−S reactions are observed in dmso solutions of [Ru(bpy)_2(dmso)_2]^(2+) (bpy = 2,2'-bipyridine); and, as reported here, we find photochromism attributable to Ru−S → Ru−O rearrangement upon visible excitation of [Ru(tpy)(bpy)(dmso)]^(2+) (tpy = 2,2':6',2' '-terpyridine) in single crystals and films as well as in solution.
Additional Information
© 2001 American Chemical Society. Received 18 January 2000. Published online 15 February 2001. Published in print 1 March 2001. We thank Will Wehbi, Larry Henling, Mike Day, and Brian Crane for experimental assistance and helpful discussions. This work was supported by ARO (DAAH04−95−1−0125), NSF, and NIST (ATP) Award 70NANB5H1031.Attached Files
Supplemental Material - ja000179d_s.pdf
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Additional details
- Eprint ID
- 75672
- Resolver ID
- CaltechAUTHORS:20170404-083716205
- Army Research Office (ARO)
- DAAH04−95−1−0125
- NSF
- National Institute of Standards and Technology (NIST)
- ATP-70NANB5H1031
- Created
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2017-04-04Created from EPrint's datestamp field
- Updated
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2021-11-15Created from EPrint's last_modified field