UV irradiation of trans-dinitrobis(tri-n-propylphosphine)palladium(II) in MeOH yields a photostationary trans-cis mixture which reverts quantitatively in the dark to the trans-form. The cis-isomer, which can be isolated in crystalline form by irradiation of trans-species in n-hexane, has been characterized by UV, IR 1H and 31P NMR spectroscopy. Irradiation of a 1/1 mixture of trans-[(PBu3n)2Pd(NO2)2] and trans-[(PPr3n)2Pd(NO2)2] gives almost entirely a 1/1 mixture of the corresponding cis-isomer, indicating an intramolecular process. © 1984.
Thermally-reversible photoisomerization of trans-dinitrobis(tri-N-propylphosphine)palladium(II)
BERGAMINI, Paola;SOSTERO, Silvana;TRAVERSO, Orazio
1984
Abstract
UV irradiation of trans-dinitrobis(tri-n-propylphosphine)palladium(II) in MeOH yields a photostationary trans-cis mixture which reverts quantitatively in the dark to the trans-form. The cis-isomer, which can be isolated in crystalline form by irradiation of trans-species in n-hexane, has been characterized by UV, IR 1H and 31P NMR spectroscopy. Irradiation of a 1/1 mixture of trans-[(PBu3n)2Pd(NO2)2] and trans-[(PPr3n)2Pd(NO2)2] gives almost entirely a 1/1 mixture of the corresponding cis-isomer, indicating an intramolecular process. © 1984.File in questo prodotto:
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