Oka, Hiroyuki published the artcileSynthesis and characterization of poly(1,3-phenylene)-based polyradicals carrying cyclic aminoxyls, SDS of cas: 111865-47-5, the publication is Journal of Materials Chemistry (2001), 11(5), 1364-1369, database is CAplus.
The synthesis and magnetic properties of poly(2,2,4,4-tetramethyl-N-yloxy-1,4-dihydro-2H-3,1-benzoxazine-6,8-diyl-1,3-phenylene) (4) are described. Polyradical 4 was prepared by the Pd-catalyzed cross-coupling reaction of 6,8-dibromo-2,2,4,4-tetramethyl-1,4-dihydro-2H-3,1-benzoxazine and bis(trimethylene) 1,3-phenylenediboronate, followed by oxidation with m-chloroperoxybenzoic acid. The number average mol. weights of 4 determined by SEC (size exclusion chromatog.) were ∼4120 (15 repeating units), and the spin concentrations determined by EPR were up to 0.75 spin per repeating unit. The EPR spectrum of 4 in a toluene glass matrix showed the ΔMs = 2 forbidden transition at g = 4.0. A Curie plot of the ΔMs = 2 signal intensity vs. 1/T gave a straight line, suggesting that the polyradical is in a triplet ground state or a nearly degenerate singlet-triplet state.
Journal of Materials Chemistry published new progress about 111865-47-5. 111865-47-5 belongs to bromides-buliding-blocks, auxiliary class Benzenes, name is Mono(N,N,N-trimethyl-1-phenylmethanaminium) tribromide, and the molecular formula is C10H16Br3N, SDS of cas: 111865-47-5.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary