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https://hdl.handle.net/10356/150219| 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. https://dx.doi.org/10.1039/C8NJ05550E | 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. | URI: | https://hdl.handle.net/10356/150219 | 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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