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 Crystal structure and semiconductor properties of copper(II) complex incorporating chiral (R)-(+)-α-Ethylbenzylammonium cations:[(R)-C9H14N]3[CuBr4].Br., published in 2022-01-31, which mentions a compound: 7789-45-9, Name is Cupric bromide, Molecular Br2Cu, Safety of Cupric bromide.
The mol. organic-inorganic hybrid halometallate [(R)-C9H14N]3[CuBr4].Br was synthesized by a slow evaporation method. The single-crystal x-ray diffraction experiment evidences that [(R)-C9H14N]3[CuBr4].Br crystallizes in the monoclinic system with the noncentrosym. space group P21 at T = 150K. The compound displays a zero-dimensional (0D) structure which consists in 3 chiral [(R)-C9H14N]+ cations, 1 anionic [CuBr4]2-, and free Br- ion. The Cu(II) has an intermediate geometry between regular tetrahedron (Td) and square planar (D4h). In the crystal structure, the cations and anions are arranged in alternating stacks which are interconnected via H bonding contacts N-H···Br. This hybrid compound presents good thermal stability up to 370 K. The DSC and elec. measurements show that no phase transition occurs in the compound over the temperature range 223-423 K. Optical absorption measurements suggest that [(R)-C9H14N]3[CuBr4].Br has a narrow direct optical band gap (Eg) of ∼2.15 eV which makes it a promising material in optoelectronic devices.
Although many compounds look similar to this compound(7789-45-9)Safety of Cupric bromide, numerous studies have shown that this compound(SMILES:[Cu+2].[Br-].[Br-]), has unique advantages. If you want to know more about similar compounds, you can read my other articles.
Reference:
Oxazolidine – Wikipedia,
Oxazolidine | C3H7NO – PubChem