Synthesis, characterization and photophysical studies of a novel polycyclic diborane

被引：3

作者：

Yao, Chang-Jiang ^{[1
]}

Zhao, Kexiang ^{[1
]}

Long, Guankui ^{[2
]}

Li, Xinxiong ^{[1
]}

Gong, Zhong-Liang ^{[3
]}

Zhong, Yu-Wu ^{[3
]}

Gao, Weibo ^{[2
]}

Li, Yongxin ^{[4
]}

Ganguly, Rakesh ^{[4
]}

Li, Gang ^{[5
]}

Zhang, Qichun ^{[1
]}

机构：

[1] Nanyang Technol Univ Singapore, Sch Mat Sci & Engn, Singapore 639798, Singapore

[2] Nanyang Technol Univ Singapore, Sch Phys & Math Sci, Div Phys & Appl Phys, Singapore 639798, Singapore

[3] Chinese Acad Sci, Inst Chem, CAS Key Lab Photochem, Beijing 100190, Peoples R China

[4] Nanyang Technol Univ Singapore, Sch Phys & Math Sci, Div Chem & Biol Chem, Singapore 639798, Singapore

[5] Shandong Normal Univ, Coll Chem Chem Engn & Mat Sci, Jinan 250014, Shandong, Peoples R China

来源：

NEW JOURNAL OF CHEMISTRY | 2019年 / 43卷 / 02期

关键词：

FUSED N-HETEROACENE; PHYSICAL-PROPERTIES; SMALL MOLECULES; AZAACENES; REACTIVITY; EFFICIENCY; TRANSPORT; SINGLE; ACENES;

D O I：

10.1039/c8nj05550e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Treatment of tetrakis(dimethylamino)diboron (B-2(NMe2)(4)) with 1,4-bis(2-(triisopropylsilyl)ethynyl)naphthalene-2,3-diamine (1) generated a large NBBN polycyclic compound 1,1-B-2{2,3-(NH)(2)-1,4-((Pr3SiC2)-Pr-i)(2)C10H4} (2). The X-ray structure analysis reveals that 2 has a twisted structure (dihedral angle approximate to 21.75 degrees) with a rather short B-B bond (1.667(9) angstrom). Theoretical calculations on 1,1-B-2 isomer 2 and its counterpart 1,2-B-2 isomer 3 have been conducted to understand their frontier orbital energy levels. Compound 2 shows strong emission with a high quantum yield of 0.52, despite the presence of many unbeneficial non-radiative behaviors such as the vibration of the TIPS groups and the rotation of the B-B single bond.

引用

页码：564 / 568

页数：5

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