Methylperoxy radicals were generated by the flash photolysis of azomethane-oxygen mixtures. The observed broadband spectrum of the CH302 radical is similar, but not identical to those reported previously. The CH:302 decay followed second-order kinetics a t high CH:jOz concentrations with k4, = (2.5
ChemInform Abstract: Methanesulfonates of High-Valent Metals: Syntheses and Structural Features of MoO2(CH3SO3)2, UO2(CH3SO3)2, ReO3(CH3SO3), VO(CH3SO3)2, and V2O3(CH3SO3)4 and Their Thermal Decomposition under N2 and O2 Atmosphere.
β Scribed by Ulf Betke; Kai Neuschulz; Mathias S. Wickleder
- Publisher
- John Wiley and Sons
- Year
- 2012
- Weight
- 34 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0931-7597
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β¦ Synopsis
Abstract
The title compounds are the first examples of solventβfree oxide methanesulfonates of Mo, U, Re, and V.
π SIMILAR VOLUMES
La(CH 3 SO 3 ) 3 Β΄2 H 2 O was prepared by the reaction of La 2 O 3 with CH 3 SO 3 H. According to the X-ray single crystal determination, the compound crystallizes with triclinic symmetry (P 1, Z = 2, a = 524.99( 8), b = 1015.3(2), c = 1298.0(2) pm, a = 98.62(2)Β°, b = 91.12(2)Β°, c = 104.61(2)Β°, R al
3 ) 3 . The reaction proceeds with high regioselectivity. Thus, methanesulfonylation of 1,2,4-trifluorobenzene (V) exclusively affords the 1-mesyl-2,4,5-trifluorobenzene (VI). In dihalobenzenes [cf. compounds (VII) and (Ia)], the para-position is predominantly substituted [cf. compound (VIII)]. Othe