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Volumn 107, Issue 20, 2003, Pages 4092-4095

Mechanism of metal-to-ligand charge transfer sensitization of olefin trans-to-cis isomerization in the fac-[ReI(phen)(CO)3(1,2-bpe)]+ cation

Author keywords

[No Author keywords available]

Indexed keywords

ABSORPTION SPECTROSCOPY; CHARGE TRANSFER; CHEMICAL BONDS; INFRARED SPECTROSCOPY; ISOMERIZATION; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; POSITIVE IONS; REACTION KINETICS;

EID: 0038621987     PISSN: 10895639     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp021660o     Document Type: Article
Times cited : (58)

References (35)
  • 24
    • 0000282249 scopus 로고    scopus 로고
    • note
    • Quantum yields were obtained by following the reaction spectrophotometrically at three different wavelengths where the contribution to the absorbance from the cis isomer complex was minimal. For the quantum yield determinations [average of at least three independent experiments with tris-oxalate ferrate(III) as the actinometer], absorbance changes were monitored to less than 10% conversion in freshly prepared solutions. The photolyses were carried out with an Oriel 200 W Hg (Xe) arc lamp powered by an Oriel universal power supply model 78700. Irradiation at 313 or 334 nm was obtained by passing the beam through a quartz collimating lens and an appropriate interference filter. This procedure is described in ref 23 and Lima, J. F.; Nakano, A. K.; Murakami Iha, N. Y.; Inorg. Chem. 1999, 38, 403-405. There was no measurable cis-to-trans conversion.
    • (1999) Inorg. Chem. , vol.38 , pp. 403-405
    • Lima, J.F.1    Nakano, A.K.2    Murakami Iha, N.Y.3
  • 26
    • 0034627654 scopus 로고    scopus 로고
    • Johnson, T. J., Zachman, G., Eds.; Bruker Optics; Billerica, MA
    • Transient absorption and emission measurements were performed by using an experimental apparatus described in: Maxwell, K. A.; Sykora, M.; DeSimone, J. M.; Meyer, T. J. Inorg. Chem. 2000, 39, 71-75. Excitation was at 355 nm with monitoring of wavelengths from 370 to 600 nm.
    • (2000) Inorg. Chem. , vol.39 , pp. 71-75
    • Maxwell, K.A.1    Sykora, M.2    DeSimone, J.M.3    Meyer, T.J.4
  • 27
    • 0037754491 scopus 로고    scopus 로고
    • note
    • 2. Experimental timing of the laser pulse and interferometer mirror step was controlled by a Stanford Research Systems model DG535 pulse generator. Signal intensities were collected in 20- or 50-ns time increments to approximately 600 ns and in-step coadditions (64-180) used to increase the S/N ratio. Following the completion of an experiment, interferograms were Fourier transformed and sorted in time to produce a 3D data set of single-channel spectra. The 3D file was further manipulated by a macro that converted the single channel spectra into absorbance changes (ΔΑ) as a function of time in the form ΔΑ = -log[1 + I(v,t)/I(v)]. Here, I(v,t) and I(v) are the infrared intensities at time t (from the 3D file) and time = 0, respectively. Time slices following the laser pulse were signal averaged over 50 ns.
    • (2000) Introduction to Step-Scan FTIR , pp. 21-25
    • Dattelbaum, D.M.1    Meyer, T.J.2
  • 34
    • 0141477201 scopus 로고
    • Olbrich et al. (reported as unpublished results in: Görner, H.; Schulte-Fröhlinde, D. J. Am. Chem. Soc. 1979, 101, 4388) have postulated that the internal conversion between upper excited triplet states and the lowest excited triplet state in trans-stilbene occurs at a dihedral angle between 20 and 40°.
    • (1979) J. Am. Chem. Soc. , vol.101 , pp. 4388
    • Görner, H.1    Schulte-Fröhlinde, D.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.