Photochemistry of methyltrioxorhenium(VII)

Abstract

h TMEDA (2 mL) was distilled into the reaction flask. All but-3 mL of THF was removed under vacuum, and 30 mL of diethyl ether was distilled into the reaction flask. The solution was filtered, and the solvent was removed by vacuum distillation. The solid product (red-orange) was washed with 40 mL of hexane, and solvent was removed under vacuum, giving a 91 9% yield of 2.2TMEDA. Slow evaporation of a EhO solution of 2-2TMEDA yielded crystals suitable for X-ray diffraction. ' H NMFt (200 MHz,

Chromophoric Lewis Base Adducts of Methyltrioxorhenium: Synthesis, Catalysis and Photochemistry

“…However, photoinduced homolysis of the Re-CH 3 bond in solution is the most common way of degradation of MTO. [20] Vogler et al reported the photoassisted isomerisation of 4-styrylpyridine, where the complex remained intact, i.e. the MTO was not affected by UV-radiation.…”

“…[8,[10][11][12][13][14][15][16][17][18][19] The photochemistry of MTO was for the first time under examination in the early 1990s. [20,21] MTO solutions were found to be very sensitive to UV light, the rhenium-carbon bond was reported to be photolysed after a short irradia-…”

“…[20] Some years later, the studies were extended to Lewis base adducts of MTO. Interesting properties of these adducts were published, [22,23] but no further research was conducted in this direction.…”

Photooxidation of Methane to Methanol by Perrhenate in Water under Ambient Conditions

“…In this context it is of interest that CH 3 ReO 3 is characterized by a very reactive ( CH − 3 → Re VII ) LMCT excited state [17,18]. The stability of the CH 3 -Re bond may be close to that of the H 3 C-H bond in methane.…”

Ligand-to-Ligand Charge Transfer in (2,2′-Biquinoline)bis(cyclopentadienyl)zirconium(IV) – Absorption and Emission in the Visible Range

“…Since extended planar ligands can intercalate in DNA [28] and related compounds may be utilized to monitor such plotted against solvent parameters E* MLCT [20] interactions. In this context it should be also mentioned that a few reports on the luminescence of some other d 0 complexes [29] …”