Synthesis, characterization and photophysical studies of a novel polycyclic diborane

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

doi:10.1039/C8NJ05550E

Synthesis, characterization and photophysical studies of a novel polycyclic diborane

Chang Jiang Yao, Kexiang Zhao, Guankui Long, Xinxiong Li, Zhong Liang Gong, Yu Wu Zhong, Weibo Gao, Yongxin Li, Rakesh Ganguly, Gang Li, Qichun Zhang^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

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.

Original language	English
Pages (from-to)	564-568
Number of pages	5
Journal	New Journal of Chemistry
Volume	43
Issue number	2
DOIs	https://doi.org/10.1039/C8NJ05550E
Publication status	Published - 2019
Externally published	Yes

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@article{cd6f6c83a1114aefafc9200ecdf88845,

title = "Synthesis, characterization and photophysical studies of a novel polycyclic diborane",

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) {\AA}). 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.",

author = "Yao, {Chang Jiang} and Kexiang Zhao and Guankui Long and Xinxiong Li and Gong, {Zhong Liang} and Zhong, {Yu Wu} and Weibo Gao and Yongxin Li and Rakesh Ganguly and Gang Li and Qichun Zhang",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry and the Centre National de la Recherche Scientifique.",

year = "2019",

doi = "10.1039/C8NJ05550E",

language = "English",

volume = "43",

pages = "564--568",

journal = "New Journal of Chemistry",

issn = "1144-0546",

publisher = "Royal Society of Chemistry",

number = "2",

}

TY - JOUR

T1 - Synthesis, characterization and photophysical studies of a novel polycyclic diborane

AU - Yao, Chang Jiang

AU - Zhao, Kexiang

AU - Long, Guankui

AU - Li, Xinxiong

AU - Gong, Zhong Liang

AU - Zhong, Yu Wu

AU - Gao, Weibo

AU - Li, Yongxin

AU - Ganguly, Rakesh

AU - Li, Gang

AU - Zhang, Qichun

PY - 2019

Y1 - 2019

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=85059552637&partnerID=8YFLogxK

U2 - 10.1039/C8NJ05550E

DO - 10.1039/C8NJ05550E

M3 - Article

AN - SCOPUS:85059552637

SN - 1144-0546

VL - 43

SP - 564

EP - 568

JO - New Journal of Chemistry

JF - New Journal of Chemistry

IS - 2

ER -

Synthesis, characterization and photophysical studies of a novel polycyclic diborane

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