Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Ionic liquid crystals: Synthesis and characterization via NMR, DSC, POM, X-ray diffraction and ionic conductivity of asymmetric viologen bistriflimide salts.Reference of 1-Bromoundecane.
A series of asym. viologen bistriflimide salts I (R = n-pentyl, dodecyl, octadecyl, etc.) of both short and long alkyl chains were synthesized by the metathesis reaction of lithium triflimide salt with the resp. asym. viologen dibromide salts II in methanol. Their thermotropic liquid crystalline properties were determined by differential scanning calorimetry, polarizing optical microscopy and variable temperature X-ray diffraction techniques. These salts melt into highly-ordered smectic T phases i.e., crystal-to SmT transitions (Tms) at relatively low temperatures (lowest Tm at -12°C) and maintain liquid crystallinity in a wide range of temperatures (8-132°C), with excellent thermal stabilities up to 320°C as determined by thermogravimetric anal. These results differ with respect to the sym. viologen bistriflimide salts I. Ionic conductivity of these salts was also measured by dielec. impedance spectroscopy and found to be in the 10-2.5 S cm-1 range, highlighting their potential as electrolytes at room temperature
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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem