2,11-DIBROMO-5,8-DIBUTYL[4]HELICENE

2,11-Dibromo-5,8-dibutyl[4]helicene

A racemic mixture of the title compound, C26H26Br2, a brominated [4]helicene, crystallizes, forming columns of stacked molecules.There are Dryer Cutout Thermostat two crystallographically unique molecules in the asymmetric unit, both with the same helical handedness.As is typical with helicene congeners, the unique molecules show short interatomic

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Modeling of dynamics processes and dynamics control

Equations and methods of classical mechanics are used to Fuser describe the dynamics of technical systems containing elements of various physical nature, planning and management tasks of production and economic objects.The direct use of known dynamics equations with indefinite multipliers leads to an increase in deviations from the constraint equat

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