Synthesis, characterization and photophysical studies of a novel polycyclic diborane

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

3 Scopus Citations
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Author(s)

  • Chang-Jiang Yao
  • Kexiang Zhao
  • Guankui Long
  • Xinxiong Li
  • Zhong-Liang Gong
  • Yu-Wu Zhong
  • Weibo Gao
  • Yongxin Li
  • Rakesh Ganguly
  • Gang Li

Detail(s)

Original languageEnglish
Pages (from-to)564-568
Journal / PublicationNew Journal of Chemistry
Volume43
Issue number2
Online published4 Dec 2018
Publication statusPublished - 14 Jan 2019
Externally publishedYes

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-(iPr3SiC2)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.

Citation Format(s)

Synthesis, characterization and photophysical studies of a novel polycyclic diborane. / Yao, Chang-Jiang; Zhao, Kexiang; Long, Guankui et al.
In: New Journal of Chemistry, Vol. 43, No. 2, 14.01.2019, p. 564-568.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review