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Title: Synthesis, characterization and photophysical studies of a novel polycyclic diborane
Authors: Yao, Chang-Jiang
Zhao, Kexiang
Long, Guankui
Li, Xinxiong
Gong, Zhong-Liang
Zhong, Yu-Wu
Gao, Weibo
Li, Yongxin
Ganguly, Rakesh
Li, Gang
Zhang, Qichun
Keywords: Science::Chemistry
Issue Date: 2019
Source: Yao, C., Zhao, K., Long, G., Li, X., Gong, Z., Zhong, Y., Gao, W., Li, Y., Ganguly, R., Li, G. & Zhang, Q. (2019). Synthesis, characterization and photophysical studies of a novel polycyclic diborane. New Journal of Chemistry, 43(2), 564-568.
Journal: New Journal of Chemistry
Abstract: Treatment of tetrakis(dimethylamino)diboron (B₂(NMe₂)₄) with 1,4-bis (2-(triisopropylsilyl)ethynyl)naphthalene-2,3-diamine (1) generated a large NBBN polycyclic compound 1,1-B₂{2,3-(NH)₂ -1,4-(ⁱPr₃ SiC₂)₂C₁₀H₄} (2). The X-ray structure analysis reveals that 2 has a twisted structure (dihedral angle ≈ 21.75°) with a rather short B-B bond (1.667(9) Å). Theoretical calculations on 1,1-B₂ isomer 2 and its counterpart 1,2-B₂ 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.
ISSN: 1144-0546
DOI: 10.1039/C8NJ05550E
Rights: © 2019 The Royal Society of Chemistry and the Centre National de la Recherche Scientifique. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

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