| 共轭有机分子BDOBC16在硅烷化SBA-15孔内的组装及其发光性质 |
| A π-Conjugated Organic Molecule: BDOBC16 Assembly in Silylated SBA-15 and Luminescent Properties |
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| 摘要: 4,4'-(9-(正十六烷基)咔唑-3,6-取代)二(6-(4-二苯胺苯基)-2,2-二氟-1,3,2(2H)-二氧杂环己烷硼)(简称BDOBC16)是一种含β二酮硼二氟取代基团的共轭有机发光分子,将其组装到3-氨丙基三乙氧基硅烷(APTES)修饰的SBA-15孔道中.研究发现,BDOBC16分子中的氟硼键未发生分解,且BDOBC16的发光性质发生了很大变化.客体BDOBC16本身在紫外光激发下发红光,而当其组装到硅烷化SBA-15孔道内后,BDOBC16被紫外光激发后发绿光,且组装后BDOBC16发光强度增强了75倍.研究结果表明,主客体分子之间的较强氢键作用是客体分子组装前后发光强度发生巨大变化的主要原因;另外,客体分子的高度分散有利于BDOBC16发光强度的提高,客体分子集聚对其发光有严重的淬灭作用. |
| 关键词: 共轭 介孔材料 硅酸盐 自组装 发光 |
| 基金项目: 国家自然科学基金(No.U1362113)资助项目. |
| Abstract: 4, 4-(9-(n-Hexadecyl)carbazole-3,6-diyl)di(6-(4-(diphenylamino)phenyl)-2, 2-difluoro-1, 3, 2(2H)-diox-aborine) (named as BDOBC16), a kind of π-conjugated organic molecule containing β-diketone-boron difluoride groups, was assembled in SBA-15 modified with (3-aminopropyl)triethoxysilane (APTES), and fluorine-boron groups in molecule of BDOBC16 was found to be remained in the assembly. Results indicate that the organic compound in silylated SBA-15 emits green light while itself emits red light. The energy of 0.45 eV is found changeable in emission of the guest before and after assembly, and luminescent intensity of BDOBC16 increases 75 times after it was assembled. Strong H-bond existed between the host and the guest, which is regarded as main reason to result tremendous change in luminescence of the guest. Molecular aggregation is also found harmful while high dispersion is benefit to luminescence of the guest. |
| Keywords: conjugation mesoporous material silicates self-assembly luminescence |
| 投稿时间：2015-09-13 修订日期：2016-01-14 |
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| 黎甜甜,袁苑,周安南,徐庆红.共轭有机分子BDOBC16在硅烷化SBA-15孔内的组装及其发光性质[J].无机化学学报,2016,32(3):508-516. |
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