The critical relaxation of the four-state Potts model on L x L lattices with L 5 64 is studied by the Monte Carlo method. The decay of the magnetisation from a nonequilibrium initial state exhibits a crossover from a power-law relaxation for I<< r ' ( L ) to an exponential one for r > > f ' ( L ) ,where t ' ( L ) is some crossover time. This crossover is discussed within the context of dynamic finite-size scaling theory. As a result, the dynamic critical exponent is estimated to be Z = 2.94 * 0.29.

New data on the synthesis and chemical transformations New data on the synthesis and chemical transformations of alkenyliodonium salts are summarised and analysed. The of alkenyliodonium salts are summarised and analysed. The bibliography includes 146 references. bibliography includes 146 references.

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Reactions of [Fluoro(methylsulfonyloxy)iodo]benzene. Part 2. Reaction of [Fluoro(sulfonyloxy)iodo]benzene with Acyclic Olefins.-Title compounds (II) undergo an electrophilic addition reaction to acrylate (I) in the presence of the corresponding lithium sulfonates to give regioisomeric fluoro(sulfonyloxy) derivatives (III) and (IV). In the case of 1-hexene (V), 1,2-disulfonate (VI) is formed (yield not given). An analogous product is isolated from the reaction with 1-heptene. -(PIRKULIEV, N. SH.; BREL, V. K.; AKHMEDOV, N. G.; MAGERRAMOV, A. M.; SHYKHALIEV, N. G.; ZEFIROV, N. S.; Russ.

Bridged compoundsBridged compounds Q 0060 Reaction of [Fluoro(trifluoromethylsulfonyloxy)iodo]benzene with Dimethyl exo-3,4-Epoxytricyclo[4.2.2.0 2,5 ]deca-7,9-diene-9,10-dicarboxylate. -(PIRKULIEV, N. S.; MAGERRAMOV, A. M.; ALLAKHVERDIEV, M. A.; MIRBAGIROVA, G. M.; BREL', V. K.; ZEFIROV, N. S.; Russ.