Synthesis of dioxin & tetra aryl pyrazine derivatives and their applications

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Tezin Türü: Yüksek Lisans

Tezin Yürütüldüğü Kurum: Orta Doğu Teknik Üniversitesi, Fen Edebiyat Fakültesi, Kimya Bölümü, Türkiye

Tezin Onay Tarihi: 2019

Öğrenci: BURCU OKYAR

Eş Danışman: EMRULLAH GÖRKEM GÜNBAŞ, SALİH ÖZÇUBUKÇU

Özet:

Aggregation induced emission (AIE) luminogens have attracted great attention in various disciplines of science in last decades. The photophysical properties and structural design of this type of luminogens make it possible to have large variety of applications in fluorescence sensors, cell imaging, microstructures aggregate and electroluminescence devices etc. All these studies promote researchers to find alternative AIE luminogens and also different application areas of AIE luminogen systems. 2,3,5,6-tetraphenylpyrazine (TPP) has an interesting structure with its propeller shape and with its planar core. In this conformation, the planarity of each ring is preserved, and the conjugation between the rings is preserved to some extent. Inspired from TPP, in this thesis, 2,3,5,6-tetraphenyl-1,4-dioxine (TPD) was synthesized and AIE property was investigated. In the second part of the thesis, 2,5-bis(4-bromophenyl)-3,6-diphenylpyrazine (2Br-TPP) was synthesized and will be used in electrochromic devices. It will be polymerized with 3,3-bis((undecyloxy)methyl)-3,4-dihydro-2H-thieno[3,4b][1,4]dioxepine and used in electrochromic device. In the third part of the thesis, 2,3,5,6-tetrakis(4-bromophenyl) pyrazine (4Br-TPP) was synthesized and coupled with bis(4-methoxyphenyl) amine and the product will be used in perovskite solar cell application as a hole transport material (HTM).