高等学校化学学报 ›› 2022, Vol. 43 ›› Issue (6): 20220091.doi: 10.7503/cjcu20220091

• 有机化学 • 上一篇    下一篇

新型萘/苝酰亚胺取代丁二炔衍生物的合成及拓扑聚合

刘情情1,2, 王普1,2, 王永帅1,2, 赵曼1, 董焕丽1,2()   

  1. 1.中国科学院化学研究所, 北京分子科学国家重点实验室, 有机固体重点实验室, 北京 100190
    2.中国科学院大学, 北京 100049
  • 收稿日期:2022-02-15 出版日期:2022-06-10 发布日期:2022-04-04
  • 通讯作者: 董焕丽 E-mail:dhl522@iccas.ac.cn
  • 基金资助:
    国家自然科学基金(21875259);北京分子科学国家研究中心项目(BNLMS-CXXM-202012)

Synthesis and Topochemical Polymerization Study of Naphthalene/perylene Imides Substituted Diacetylene Derivatives

LIU Qingqing1,2, WANG Pu1,2, WANG Yongshuai1,2, ZHAO Man1, DONG Huanli1,2()   

  1. 1.Key Laboratory of Organic Solids,Beijing National Laboratory for Molecular Sciences,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190,China
    2.University of Chinese Academy of Sciences,Beijing 100049,China
  • Received:2022-02-15 Online:2022-06-10 Published:2022-04-04
  • Contact: DONG Huanli E-mail:dhl522@iccas.ac.cn
  • Supported by:
    the National Natural Science Foundation of China(21875259);the Beijing National Laboratory for Molecular Sciences, China(BNLMS-CXXM-202012)

摘要:

经5步反应制备了萘/苝酰亚胺取代的端炔和碘炔单体, 通过Sonagashira偶联反应合成了2个新型对称丁二炔单体浅黄色粉末2-[4-(4-{4-[7-(庚-3-基)-1,3,6,8-四氧亚基-1,2,3,6,7,8-六氢异喹啉并[6,5,4-def]异喹啉-2-基]苯基}丁-1,3-二炔基)苯基]-7-(辛-4-基)-1,2,3,6,7,8-六氢异喹啉并[6,5,4-def]异喹啉-1,3,6,8-四酮(diNDI)和暗红色粉末2-[4-(4-{4-[1,3,8,10-四氧亚基-9-(二十三烷-12-基)-1,2,3,8,9,10-六氢异喹啉并[6',5',4':9,1,2]蒽并[6,5,10-def]异喹啉-2-基]苯基}丁-1,3-二炔基)苯基]-9-(二十三烷-12-基)-1,2,3,8,9,10-六氢异喹啉并[6',5',4':9,1,2]蒽并 [6,5,10-def]异喹啉-1,3,8,10-四酮(diPDI), 产率分别达60%和70%. 由于NDI和PDI基元的强吸电子作用, diNDI和diPDI表现较低的最低未占分子轨道(LUMO)能级, 分别为?3.80和?3.70 eV. 单晶数据表明, 萘酰亚胺基元的分子间氢键及π-π作用对diNDI分子堆积结构起主导作用, diNDI呈层状堆积模式. 由差示扫描量热(DSC)实验结果可知, diNDI丁二炔经加热可发生固态聚合. 加热条件下diNDI的紫外-可见吸收光谱及原位拉曼光谱特征峰以及在波长532 nm激光强度为10%的辐照条件下原位拉曼光谱特征峰的变化均表明diNDI微纳晶发生了非常规的1,4-加成聚合, 并且新生成的共轭主链是无序的, 同时发现激光辐照条件下更易促进聚合反应.

关键词: 丁二炔, 萘/苝酰亚胺侧基, 单晶结构, 拓扑聚合

Abstract:

Naphthalene/perylene imide substituted terminal alkyne and iodide monomers were prepared by a five-step reaction. Two new symmetric diacetylene monomers, pale yellow powder 2-(2-ethylhexyl)-7-{4-[7-(2-ethylhexyl)-1,3,6,8-tetraoxo-1,2,3,3a,5a,6,7,8-octahydroisoquinolino[6,5,4-def]isoquinolin-2-yl]buta-1,3-diynyl}- 1,2,3,6,7,8-hexahydroisoquinolino[6,5,4-def]isoquinoline-1,3,6,8-tetraone(diNDI) and deep red powder 9-{4-[1,3,8,10-tetraoxo-9-(tricos-12-yl)-1,2,3,8,9,10-hexahydroisoquinolino[6',5',4':9,1,2]anthra[6,5,10-def]isoquinolin-2-yl]buta-1,3-diynyl}-2-(tricos-12-yl)-1,2,3,8,9,10-hexahydroisoquinolino[6',5',4':9,1,2]anthra[6,5,10-def]isoquinoline-1,3,8,10-tetraone(diPDI), were synthesized by the Sonagashira coupling reaction with yields up to 60% and 70%, respectively. Due to the strong electron-withdrawing of NDI and PDI side groups, they exhibited deeper lowest unoccupied molecular orbital energy levels of -3.80 and -3.70 eV, respectively. The single crystal data of diNDI showed that the intermolecular hydrogen bonding and π-π interaction of naphthalene imide units mediated the intermolecular assembly of diNDI, showing a layer packing model. The differential scanning calorimetry results indicated that diNDI polymerized in solid-state under heating. The changes in the UV-Vis absorption and in situ Raman spectra of diNDI under heating and 532 nm-10% laser irradiation condition indicated that diNDI microcrystals might react to form a distorted structure instead of a fully conjugated backbone that usually resulted from the regular 1,4-addition. The laser irradiation conditions were found to facilitate the polymerization reaction.

Key words: Diacetylene, Naphthalene/perylene imides side group, Single crystal structure, Topochemical polymerization

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