In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Ionic liquid crystals: Synthesis and characterization via NMR, DSC, POM, X-ray diffraction and ionic conductivity of asymmetric viologen bistriflimide salts, published in 2021-04-15, which mentions a compound: 693-67-4, Name is 1-Bromoundecane, Molecular C11H23Br, Computed Properties of C11H23Br.
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
Here is just a brief introduction to this compound(693-67-4)Computed Properties of C11H23Br, more information about the compound(1-Bromoundecane) is in the article, you can click the link below.
Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem