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Cai B, Zhu ME, Meng YN, Li K. The crystal structure of 2-aminoisophthalic acid, C 8H 7NO 4. Z KRIST-NEW CRYST ST 2020. [DOI: 10.1515/ncrs-2019-0783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C8H7NO4, monoclinic, C2/c (no. 15), a = 4.9752(11) Å, b = 14.167(3) Å, c = 10.999(2) Å, β = 99.066(5)°, V = 765.6(3) Å3, Z = 4, Rgt(F) = 0.0571, wRref(F2) = 0.1630, T = 150(2) K.
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Affiliation(s)
- Bin Cai
- School of Chemistry and Chemical Engineering, Zhoukou Normal University , Zhoukou, Henan Province 466001 , P.R. China
| | - Meng-En Zhu
- School of Chemistry and Chemical Engineering, Zhoukou Normal University , Zhoukou, Henan Province 466001 , P.R. China
| | - Yu-Ning Meng
- School of Chemistry and Chemical Engineering, Zhoukou Normal University , Zhoukou, Henan Province 466001 , P.R. China
| | - Kun Li
- School of Chemistry and Chemical Engineering, Zhoukou Normal University , Zhoukou, Henan Province 466001 , P.R. China
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Yan C, Takeshita M, Nakatsuji JY, Kurosaki A, Sato K, Shang R, Nakamoto M, Yamamoto Y, Adachi Y, Furukawa K, Kishi R, Nakano M. Synthesis and properties of hypervalent electron-rich pentacoordinate nitrogen compounds. Chem Sci 2020; 11:5082-5088. [PMID: 34122965 PMCID: PMC8159240 DOI: 10.1039/d0sc00002g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Isolation and structural characterization of hypervalent electron-rich pentacoordinate nitrogen species have not been achieved despite continuous attempts for over a century. Herein we report the first synthesis and isolation of air stable hypervalent electron-rich pentacoordinate nitrogen cationic radical (11-N-5) species from oxidation of their corresponding neutral (12-N-5) species. In the cationic radical species, the nitrogen centers adopt a trigonal bipyramidal geometry featuring a 3-center-5-electron hypervalent attractive interaction. The combination of single crystal X-ray diffraction analysis and computational studies revealed weak N-O interactions between the central nitrogen cation and oxygen atoms. This successful design strategy and isolation of air-stable pentacoordinate hypervalent nitrogen species allow further investigations on reactivity and properties resulting from these unusually weakly coordinating interactions in nitrogen compounds.
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Affiliation(s)
- Chenting Yan
- Department of Chemistry, Graduate School of Science, Hiroshima University 1-3-1 Kagamiyama Higashi-Hiroshima 739-8526 Japan
| | - Masato Takeshita
- Department of Chemistry, Graduate School of Science, Hiroshima University 1-3-1 Kagamiyama Higashi-Hiroshima 739-8526 Japan
| | - Jun-Ya Nakatsuji
- Department of Chemistry, Graduate School of Science, Hiroshima University 1-3-1 Kagamiyama Higashi-Hiroshima 739-8526 Japan
| | - Akihiro Kurosaki
- Department of Chemistry, Graduate School of Science, Hiroshima University 1-3-1 Kagamiyama Higashi-Hiroshima 739-8526 Japan
| | - Kaoko Sato
- Department of Chemistry, Graduate School of Science, Hiroshima University 1-3-1 Kagamiyama Higashi-Hiroshima 739-8526 Japan
| | - Rong Shang
- Department of Chemistry, Graduate School of Science, Hiroshima University 1-3-1 Kagamiyama Higashi-Hiroshima 739-8526 Japan
| | - Masaaki Nakamoto
- Department of Chemistry, Graduate School of Science, Hiroshima University 1-3-1 Kagamiyama Higashi-Hiroshima 739-8526 Japan
| | - Yohsuke Yamamoto
- Department of Chemistry, Graduate School of Science, Hiroshima University 1-3-1 Kagamiyama Higashi-Hiroshima 739-8526 Japan
| | - Yohei Adachi
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University 1-3-1 Kagamiyama Higashi-Hiroshima 739-8526 Japan
| | - Ko Furukawa
- Center for Coordination Research Facilities, Institute for Research Promotion, Niigata University 8050 Ikarashi 2-no-cho, Nishi-ku Niigata 950-2181 Japan
| | - Ryohei Kishi
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University Toyonaka Osaka 560-8531 Japan
| | - Masayoshi Nakano
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University Toyonaka Osaka 560-8531 Japan.,Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University Toyonaka Osaka 560-8531 Japan
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Aggregation-induced emission and thermally activated delayed fluorescence of 2,6-diaminobenzophenones. Sci China Chem 2018. [DOI: 10.1007/s11426-018-9301-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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