1
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Turkoglu G, Ozturk T. Fluorescent small molecules with alternating triarylamine-substituted selenophenothiophene and triarylborane: synthesis, photophysical properties and anion sensing studies. Dalton Trans 2022; 51:2715-2725. [PMID: 35080223 DOI: 10.1039/d1dt03681e] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Two novel D-π-A fluorophores based on selenopheno[3,2-b]thiophene, possessing triphenylamine and 4,4'-dimethoxytriphenylamine units as donors and dimesitylborane as an acceptor, linked through a π-conjugated thiophene spacer (BTPAST and BOMeTPAST, respectively) were synthesized. Their photophysical properties were investigated in both solution and the state of aggregation and compared to those of their corresponding donor parts, having no dimesitylborane units (TPAST and OMeTPAST). All the compounds displayed large Stokes shifts between 100 and 140 nm with positive solvatochromism in solvents having different polarities. While BTPAST displayed both aggregation induced emission (AIE) and twisted intramolecular charge transfer (TICT) characteristics, the others preponderated with TICT effects. The sensing abilities of BTPAST and BOMeTPAST towards different anions were studied. Both exhibited chromogenic and fluorogenic responses to small anions such as fluoride and cyanide, for which the detection limits were found to be 0.12 and 2.43 ppm with BTPAST and 0.59 and 0.92 ppm with BOMeTPAST, respectively. These results provide guidance for the development of novel fused selenophenothiophene sensors in the field of anion sensing.
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Affiliation(s)
- Gulsen Turkoglu
- Department of Chemistry, Faculty of Science, Istanbul Technical University, Maslak, Istanbul 34469, Turkey.
| | - Turan Ozturk
- Department of Chemistry, Faculty of Science, Istanbul Technical University, Maslak, Istanbul 34469, Turkey. .,TUBITAK-UME, Chemistry Group Laboratories, PO Box 54, 41471, Gebze, Kocaeli, Turkey
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2
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Lin H, Patel S, Jäkle F. Tailored Triarylborane Polymers as Supported Catalysts and Luminescent Materials. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c02258] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Huina Lin
- Department of Chemistry, Rutgers University–Newark, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Shivani Patel
- Department of Chemistry, Rutgers University–Newark, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Frieder Jäkle
- Department of Chemistry, Rutgers University–Newark, 73 Warren Street, Newark, New Jersey 07102, United States
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3
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Ma JL, Liu H, Li SY, Li ZY, Zhang HY, Wang Y, Zhao CH. Metal-Free Room-Temperature Phosphorescence from Amorphous Triarylborane-Based Biphenyl. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00068] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jia-Liang Ma
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Hao Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Sheng-Yong Li
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Zhi-Yi Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Hong-Yu Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Ying Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Cui-Hua Zhao
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
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4
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Uebe M, Sakamaki D, Ito A. Electronic and Photophysical Properties of 9,10-Anthrylene-Bridged B-π-N Donor-Acceptor Molecules with Solid-State Emission in the Yellow to Red Region. Chempluschem 2020; 84:1305-1313. [PMID: 31944063 DOI: 10.1002/cplu.201900003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Indexed: 12/17/2022]
Abstract
9,10-Anthrylene-bridged triarylborane-triarylamine donor-acceptor compounds were prepared to examine the influence of the bulky π-bridge on the electronic and photophysical properties of the compounds, with the aim of realizing their solid-state emission. The intramolecular charge-transfer (ICT) absorption and emission between the vacant p orbital on the boron center, p(B), and occupied p orbital on the nitrogen center, p(N), through the π orbital of the anthrylene, π(anthrylene), were observed, and it was demonstrated that the HOMO-LUMO gap decreased with increasing number of introduced anthrylene units because of the effective lowering of LUMO originating from the p(B)-π(anthrylene) orbital interaction. The compounds exhibited solid-state emission with emission maxima at 560 nm and 643 nm, respectively, in the yellow to red region, with the corresponding absolute solid-state quantum yield of 18 % and 31 %, as a result of the combination of the highly congested structure originating from the anthrylene π-bridge and the introduction of bulky tert-butyl protecting groups.
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Affiliation(s)
- Masashi Uebe
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University Nishikyo-ku, Kyoto, 615-8510, Japan.,Condensed Molecular Materials Laboratory, RIKEN Cluster for Pioneering Research, RIKEN Wako, Saitama, 351-0198, Japan
| | - Daisuke Sakamaki
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University Nishikyo-ku, Kyoto, 615-8510, Japan.,Department of Chemistry, Graduate School of Science, Osaka Prefecture University Gakuen-cho, Naka-ku, Sakai, Osaka, 599-8531, Japan
| | - Akihiro Ito
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University Nishikyo-ku, Kyoto, 615-8510, Japan
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Liu D, Sun Z, Zhao Z, Peng Q, Zhao C. 1,1′‐Binaphthyl Consisting of Two Donor–π–Acceptor Subunits: A General Skeleton for Temperature‐Dependent Dual Fluorescence. Chemistry 2019; 25:10179-10187. [DOI: 10.1002/chem.201901719] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 05/09/2019] [Indexed: 11/07/2022]
Affiliation(s)
- Di‐Hong Liu
- School of Chemistry and Chemical EngineeringShandong University Jinan 250100 P. R. China
| | - Zuo‐Bang Sun
- School of Chemistry and Chemical EngineeringShandong University Jinan 250100 P. R. China
| | - Zheng‐Hua Zhao
- School of Chemistry and Chemical EngineeringShandong University Jinan 250100 P. R. China
| | - Qian Peng
- Key Laboratory of Organic SolidsBeijing National Laboratory for, Molecular Science (BNLMS) Beijing 100190 P. R. China
| | - Cui‐Hua Zhao
- School of Chemistry and Chemical EngineeringShandong University Jinan 250100 P. R. China
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Sun Z, Liu J, Yuan D, Zhao Z, Zhu X, Liu D, Peng Q, Zhao C. 2,2′‐Diamino‐6,6′‐diboryl‐1,1′‐binaphthyl: A Versatile Building Block for Temperature‐Dependent Dual Fluorescence and Switchable Circularly Polarized Luminescence. Angew Chem Int Ed Engl 2019; 58:4840-4846. [DOI: 10.1002/anie.201813320] [Citation(s) in RCA: 127] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Indexed: 02/06/2023]
Affiliation(s)
- Zuo‐Bang Sun
- School of Chemistry and Chemical EngineeringShandong University Jinan 250100 P. R. China
| | - Jun‐Kai Liu
- Key Laboratory of Organic SolidsBeijing National Laboratory for Molecular Science (BNLMS) Beijing 100190 P. R. China
| | - Da‐Fei Yuan
- Key Laboratory of Organic SolidsBeijing National Laboratory for Molecular Science (BNLMS) Beijing 100190 P. R. China
| | - Zheng‐Hua Zhao
- School of Chemistry and Chemical EngineeringShandong University Jinan 250100 P. R. China
| | - Xiao‐Zhang Zhu
- Key Laboratory of Organic SolidsBeijing National Laboratory for Molecular Science (BNLMS) Beijing 100190 P. R. China
| | - Di‐Hong Liu
- School of Chemistry and Chemical EngineeringShandong University Jinan 250100 P. R. China
| | - Qian Peng
- Key Laboratory of Organic SolidsBeijing National Laboratory for Molecular Science (BNLMS) Beijing 100190 P. R. China
| | - Cui‐Hua Zhao
- School of Chemistry and Chemical EngineeringShandong University Jinan 250100 P. R. China
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7
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Sun Z, Liu J, Yuan D, Zhao Z, Zhu X, Liu D, Peng Q, Zhao C. 2,2′‐Diamino‐6,6′‐diboryl‐1,1′‐binaphthyl: A Versatile Building Block for Temperature‐Dependent Dual Fluorescence and Switchable Circularly Polarized Luminescence. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201813320] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Zuo‐Bang Sun
- School of Chemistry and Chemical EngineeringShandong University Jinan 250100 P. R. China
| | - Jun‐Kai Liu
- Key Laboratory of Organic SolidsBeijing National Laboratory for Molecular Science (BNLMS) Beijing 100190 P. R. China
| | - Da‐Fei Yuan
- Key Laboratory of Organic SolidsBeijing National Laboratory for Molecular Science (BNLMS) Beijing 100190 P. R. China
| | - Zheng‐Hua Zhao
- School of Chemistry and Chemical EngineeringShandong University Jinan 250100 P. R. China
| | - Xiao‐Zhang Zhu
- Key Laboratory of Organic SolidsBeijing National Laboratory for Molecular Science (BNLMS) Beijing 100190 P. R. China
| | - Di‐Hong Liu
- School of Chemistry and Chemical EngineeringShandong University Jinan 250100 P. R. China
| | - Qian Peng
- Key Laboratory of Organic SolidsBeijing National Laboratory for Molecular Science (BNLMS) Beijing 100190 P. R. China
| | - Cui‐Hua Zhao
- School of Chemistry and Chemical EngineeringShandong University Jinan 250100 P. R. China
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Li SY, Sun ZB, Zhao CH. Impact of the 2,2'-Bithienyl Framework on the Charge-Transfer Emission of Triarylborane-Based o,o'-Substituted Biaryls. ACS OMEGA 2018; 3:12730-12736. [PMID: 31457999 PMCID: PMC6645423 DOI: 10.1021/acsomega.8b02004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 09/21/2018] [Indexed: 05/28/2023]
Abstract
Two new triarylborane-based o,o'-substituted 2,2'-bithienyls, BT-BNMe 2 and BT-BNBn 2 , which contain BMes2 and NMe2/NBn2 groups at the 3,3'-positions, have been synthesized. Similar to the o,o'-substituted biphenyl analogues, BP-BNMe 2 and BP-BNBn 2 , which contain BMes2 and NMe2/NBn2 groups at the 2,2'-positions, the steric effect of the amino group has significant influence on the conformation of the 2,2'-bithienyl skeleton. The boryl and amino groups are located at the same side of 2,2'-bithienyls axis with a short B···N distance (3.63 Å) for the NMe2-substituted BT-BNMe 2 . On the contrary, the two substituents are arranged on the two different sides of the 2,2'-bithienyls axis for BT-BNBn 2 , which is modified with bulky NBn2. Despite the remarkable differences in the steric structure, the two 2,2'-bithienyls display fluorescence at close wavelengths, which is in sharp contrast to the much red-shifted fluorescence of BP-BNMe 2 than BP-BNBn 2 . The theoretical calculations demonstrated that the two 2,2'-bithienyls have close highest occupied molecular orbital-lowest unoccupied molecular orbital gaps in the excited state, which firmly support the experimental results. Thus, the parent main chain framework can exhibit great impact on the charge-transfer emission of o,o'-substituted biaryls.
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9
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Triarylamines with branched multi-pyridine groups: modulation of emission properties by structural variation, solvents, and tris(pentafluorophenyl)borane. Sci China Chem 2018. [DOI: 10.1007/s11426-017-9202-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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10
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An unconventional chromophore in water-soluble polysiloxanes synthesized via thiol-ene reaction for metal ion detection. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2017.09.050] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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11
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Triarylborane-Based Materials for OLED Applications. Molecules 2017; 22:molecules22091522. [PMID: 28902157 PMCID: PMC6151606 DOI: 10.3390/molecules22091522] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 08/30/2017] [Indexed: 11/17/2022] Open
Abstract
Multidisciplinary research on organic fluorescent molecules has been attracting great interest owing to their potential applications in biomedical and material sciences. In recent years, electron deficient systems have been increasingly incorporated into fluorescent materials. Triarylboranes with the empty p orbital of their boron centres are electron deficient and can be used as strong electron acceptors in conjugated organic fluorescent materials. Moreover, their applications in optoelectronic devices, energy harvesting materials and anion sensing, due to their natural Lewis acidity and remarkable solid-state fluorescence properties, have also been investigated. Furthermore, fluorescent triarylborane-based materials have been commonly utilized as emitters and electron transporters in organic light emitting diode (OLED) applications. In this review, triarylborane-based small molecules and polymers will be surveyed, covering their structure-property relationships, intramolecular charge transfer properties and solid-state fluorescence quantum yields as functional emissive materials in OLEDs. Also, the importance of the boron atom in triarylborane compounds is emphasized to address the key issues of both fluorescent emitters and their host materials for the construction of high-performance OLEDs.
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12
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Turkoglu G, Cinar ME, Ozturk T. Synthesis and Photophysical and Anion-Sensing Properties of Triarylborane-Substituted Cross-Conjugated and Conjugated Thienothiophenes. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700679] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Gulsen Turkoglu
- Department of Chemistry; Istanbul Technical University; Maslak 34469 Istanbul Turkey
| | - M. Emin Cinar
- Department of Chemistry; Istanbul Technical University; Maslak 34469 Istanbul Turkey
- Department Chemie-Biologie; Universität Siegen; OC1 57068 Siegen Germany
| | - Turan Ozturk
- Department of Chemistry; Istanbul Technical University; Maslak 34469 Istanbul Turkey
- Chemistry Group Laboratories; TUBITAK-UME; P. O. Box 54, Gebze 41471 Kocaeli Turkey
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13
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Kurata R, Ito A, Gon M, Tanaka K, Chujo Y. Diarylamino- and Diarylboryl-Substituted Donor–Acceptor Pyrene Derivatives: Influence of Substitution Pattern on Their Photophysical Properties. J Org Chem 2017; 82:5111-5121. [DOI: 10.1021/acs.joc.7b00315] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Ryohei Kurata
- Department of Molecular Engineering, Graduate School of Engineering, and ‡Department of
Polymer Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Akihiro Ito
- Department of Molecular Engineering, Graduate School of Engineering, and ‡Department of
Polymer Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Masayuki Gon
- Department of Molecular Engineering, Graduate School of Engineering, and ‡Department of
Polymer Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kazuo Tanaka
- Department of Molecular Engineering, Graduate School of Engineering, and ‡Department of
Polymer Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yoshiki Chujo
- Department of Molecular Engineering, Graduate School of Engineering, and ‡Department of
Polymer Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
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Affiliation(s)
- Sheng-Yong Li
- School of Chemistry and Chemical Engineering,
Key Laboratory of Special Functional Aggregated Materials, Ministry
of Education, Shandong University, Jinan 250100, People’s Republic of China
| | - Zuo-Bang Sun
- School of Chemistry and Chemical Engineering,
Key Laboratory of Special Functional Aggregated Materials, Ministry
of Education, Shandong University, Jinan 250100, People’s Republic of China
| | - Cui-Hua Zhao
- School of Chemistry and Chemical Engineering,
Key Laboratory of Special Functional Aggregated Materials, Ministry
of Education, Shandong University, Jinan 250100, People’s Republic of China
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15
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Li SY, Hui YJ, Sun ZB, Zhao CH. A triarylborane-based biphenyl exhibiting abrupt fluorescence enhancement at a specific high temperature. Chem Commun (Camb) 2017; 53:3446-3449. [DOI: 10.1039/c6cc10088k] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A triarylborane exhibits significant fluorescence enhancement abruptly at a specific high temperature and can remain intensely emissive even after cooling to room temperature.
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Affiliation(s)
- Sheng-Yong Li
- School of Chemistry and Chemical Engineering
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- Shandong University
- Jinan
| | - Ya-Jun Hui
- School of Chemistry and Chemical Engineering
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- Shandong University
- Jinan
| | - Zuo-Bang Sun
- School of Chemistry and Chemical Engineering
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- Shandong University
- Jinan
| | - Cui-Hua Zhao
- School of Chemistry and Chemical Engineering
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- Shandong University
- Jinan
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16
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Yoshioka E, Kohtani S, Hashimoto T, Takebe T, Miyabe H. Photo-Induced Atom-Transfer Radical Reactions Using Charge–Transfer Complex between Iodine and Tertiary Amine. Chem Pharm Bull (Tokyo) 2017; 65:33-35. [DOI: 10.1248/cpb.c16-00814] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Eito Yoshioka
- School of Pharmacy, Hyogo University of Health Sciences
| | | | | | - Tomoko Takebe
- School of Pharmacy, Hyogo University of Health Sciences
| | - Hideto Miyabe
- School of Pharmacy, Hyogo University of Health Sciences
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17
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Ren Y, Yan C, Jia J, Wu HS. Theoretical study on the mechanism of palladium-catalyzed sp2 CH bond activation using cyano as a directing group. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.10.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Zhang C, Li M, Lu HY, Chen CF. Synthesis, Structures, and Photophysical Properties of Difuro-Fused Tetrahydro[5]helicene Imide Derivatives. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600467] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Chao Zhang
- School of Chemistry and Chemical Engineering; Beijing 100049 China
| | - Meng Li
- Beijing National Laboratory for Molecular Sciences; CAS Key Laboratory of Molecular Recognition and Function; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
| | - Hai-Yan Lu
- School of Chemistry and Chemical Engineering; Beijing 100049 China
| | - Chuan-Feng Chen
- School of Chemistry and Chemical Engineering; Beijing 100049 China
- Beijing National Laboratory for Molecular Sciences; CAS Key Laboratory of Molecular Recognition and Function; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
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Wang C, Sun ZB, Xu QW, Zhao CH. Chirality Relay in 2,2'-Substituted 1,1'-Binaphthyl: Access to Propeller Chirality of the Tricoordinate Boron Center. Chemistry 2016; 22:16750-16754. [PMID: 27607228 DOI: 10.1002/chem.201602984] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Indexed: 11/12/2022]
Abstract
It is a challenging issue to achieve propeller chirality for triarylboranes owing to the low transition barrier between the P and M forms of the boron center. Herein, we report a new strategy to achieve propeller chirality of triarylboranes. It was found that the chirality relay from axially chiral 1,1'-binaphthyl to propeller chirality of the trivalent boron center can be realized when a Me2 N and a Mes2 B group (Mes=mesityl) are introduced at the 2,2'-positions of the 1,1'-binaphthyl skeleton (BN-BNaph) owing to the strong π-π interaction between the Me2 N-bonded naphthyl ring and the phenyl ring of one adjacent Mes group, which not only exerts great steric hindrance on the rotation of the two Mes groups but also gives unequal stability to the two configurations of the boron center for a given configuration of the binaphthyl moiety. The stereostructures of the boron center were fully characterized through 1 H NMR spectroscopy, X-ray crystal analyses, and theoretical calculations. Detailed comparisons with the analog BN-Ph-BNaph, in which the Mes2 B group is separated from 1,1'-binaphthyl by a para-phenylene spacer, confirmed the essential role of π-π interaction for the successful chirality relay in BN-BNaph.
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Affiliation(s)
- Chen Wang
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Jinan, 250100, P. R. China
| | - Zuo-Bang Sun
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Jinan, 250100, P. R. China
| | - Qing-Wen Xu
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Jinan, 250100, P. R. China
| | - Cui-Hua Zhao
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Jinan, 250100, P. R. China
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20
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Sun ZB, Li SY, Liu ZQ, Zhao CH. Triarylborane π -electron systems with intramolecular charge-transfer transitions. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2016.06.007] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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