《Introduction of heterocyclic ring to phenanthroimidazole moiety for efficient blue emitting ionic small molecule LECs》 was written by John, Jino C.; Shanmugasundaram, Kanagaraj; Puthanveedu, Archana; Rao, C. V. S. Brahmmananda; Gopakumar, Gopinadhanpillai; Choe, Youngson. Computed Properties of C6H12Br2 And the article was included in Organic Electronics in 2020. The article conveys some information:
Two novel phenanthroimidazole based luminogens were designed and synthesized through simple synthetic procedures. Two different hetero atoms containing (S, O) rings were introduced into the phenanthroimidazole moiety to obtain the efficient blue emitting luminogens. The optical, thermal, electronic, electrochem. and electroluminescence properties of both the derivatives have been thoroughly characterized. Both the synthesized compounds showed good thermal stability which is necessary for the LEC fabricating material. The photoluminescence quantum yields are good for both the compounds The theor. calculations done for electronic structure predictions are in good agreement with the exptl. studies done by cyclic voltammetry. Moreover, the LEC devices fabricated show strong blue emission in 459 and 461 nm for devices 1 and 2 resp. The CIE graph show good intensity for the devices 1 and 2 at (0.18,0.22) and (0.19,0.19) resp. These CIE coordinates fall in the strong and intense blue emission region. Comparing the brightness, the compound 2 shows better brightness of 1289 than that of compound 1 of 1177 cd m-2. The c.d. is also higher for the compound 2 which shows 342, when the compound 1 shows a c.d. of 166 mA cm-2. Both the compounds show very good external quantum efficiency too. In addition to this study using 1,6-Dibromohexane, there are many other studies that have used 1,6-Dibromohexane(cas: 629-03-8Computed Properties of C6H12Br2) was used in this study.
1,6-Dibromohexane(cas: 629-03-8) is generally used to introduce C6 spacer in the molecular architecture. Some of the examples are: synthesis of solvent processable and conductive polyfluorene ionomers for alkaline fuel cell applications; synthesis of cross-linkable regioregular poly(3-(5-hexenyl)thiophene) (P3HNT) for stabilizing the film morphology in polymer photovoltaic cells.Computed Properties of C6H12Br2
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary