11. However, the cone angle of an unsymmetrical  ligand cannot be determined in the same. 12. For example, benzanilide and dimethylaniline react with phosphorus oxychloride to produce an unsymmetrical  diaryl ketone. 13. The molecule is an unsymmetrical  ketone. 14. Peter Gaillard Stoney expanded the house by building an unsymmetrical  wing toward the west in 1855. 15. Ferroelectric materials are all piezoelectric and therefore have a spontaneous electric polarisation as the structures are unsymmetrical . 16. With unsymmetrical  alkenes or alkynes, regioselectivity can be problematic, but less so with intramolecular reactions. 17. Mixed with unsymmetrical  dimethylhydrazine it was used as Hydyne, a propellent for liquid-fuel rockets. 18. The technique of symmetrical components is used to simplify analysis of unsymmetrical  faults in three-phase systems. 19. A large number of symmetrical and unsymmetrical  derivatives can be produced by using different combinations of ring systems. 20. :: Cheers, It appears the fuel he demanded use of was unsymmetrical  dimethylhydrazine and nitrogen tetroxide.