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Supramolecular chemistry of anionic boron clusters and its applications in biology. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Li X, Wu J, Fang F, Li H, Wang L, Wan H, Guan G. Preparation of the 1-Methylimidazole Borane/Tetrazole System for Hypergolic Fuels. Molecules 2022; 27:molecules27144466. [PMID: 35889339 PMCID: PMC9323667 DOI: 10.3390/molecules27144466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/07/2022] [Accepted: 07/08/2022] [Indexed: 12/01/2022] Open
Abstract
Based on the acid–base neutralization, the (1-methylimidazolium)(tetrazol-1-yl)borane was successfully synthesized by taking advantage of the acidity of the tetrazole and the basicity of the 1-methylimidazole borane complex. Through HRMS, NMR, and FT−IR, the structure of synthetic compounds was characterized in detail. Concerning about the (1-methylimidazolium)(tetrazol-1-yl)borane, it had an ignition−delay time of about 25 ms and a density specific impulse over 351 s·g/cm3, making it a suitable candidate for green hypergolic fuels. Moreover, it also demonstrated that introducing tetrazole into the borane could be an appropriate strategy to adjust the performance of the energy of those borane compounds.
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Affiliation(s)
- Xue Li
- State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China; (X.L.); (J.W.); (H.W.)
| | - Jun Wu
- State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China; (X.L.); (J.W.); (H.W.)
| | - Fan Fang
- Centre Hydrogenergy, College of Material Science & Technology, Nanjing University of Aeronaut & Astronaut, Nanjing 210016, China;
| | - Hongping Li
- Institute for Energy Research of Jiangsu University, Jiangsu University, Zhenjiang 212013, China;
| | - Lei Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China; (X.L.); (J.W.); (H.W.)
- Correspondence: (L.W.); (G.G.); Tel.: +86-25-83587198 (L.W. & G.G.)
| | - Hui Wan
- State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China; (X.L.); (J.W.); (H.W.)
| | - Guofeng Guan
- State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China; (X.L.); (J.W.); (H.W.)
- Correspondence: (L.W.); (G.G.); Tel.: +86-25-83587198 (L.W. & G.G.)
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Goswami LN, Chakravarty S, Cai QY, Shapiro EM, Hawthorne MF, Ma L. Amphiphilic DTPA Multimer Assembled on Icosahedral Closo-Borane Motif as High-Performance MRI Blood Pool Contrast Agent. ACS APPLIED BIO MATERIALS 2021; 4:6658-6663. [DOI: 10.1021/acsabm.1c00717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lalit N. Goswami
- International Institute of Nano and Molecular Medicine and Department of Radiology, University of Missouri, Columbia, Missouri 65212, United States
| | - Shatadru Chakravarty
- International Institute of Nano and Molecular Medicine and Department of Radiology, University of Missouri, Columbia, Missouri 65212, United States
- Molecular and Cellular Imaging Laboratory, Department of Radiology, Michigan State University, East Lansing, Michigan 48823, United States
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, Michigan 48823, United States
| | - Quan-Yu Cai
- International Institute of Nano and Molecular Medicine and Department of Radiology, University of Missouri, Columbia, Missouri 65212, United States
- Harry S. Truman Memorial Veterans’ Hospital, Columbia, Missouri 65201, United States
| | - Erik M. Shapiro
- Molecular and Cellular Imaging Laboratory, Department of Radiology, Michigan State University, East Lansing, Michigan 48823, United States
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, Michigan 48823, United States
| | - M. Frederick Hawthorne
- International Institute of Nano and Molecular Medicine and Department of Radiology, University of Missouri, Columbia, Missouri 65212, United States
| | - Lixin Ma
- International Institute of Nano and Molecular Medicine and Department of Radiology, University of Missouri, Columbia, Missouri 65212, United States
- Harry S. Truman Memorial Veterans’ Hospital, Columbia, Missouri 65201, United States
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Travagin F, Lattuada L, Giovenzana GB. AAZTA: The rise of mesocyclic chelating agents for metal coordination in medicine. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213908] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Shrestha R, Teesdale-Spittle PH, Lewis AR, Rendle PM. Gadolinium Complexes Attached to Poly Ethoxy Ethyl Glycinamide (PEE-G) Dendrons: Magnetic Resonance Imaging Contrast Agents with Increased Relaxivity. Chempluschem 2020; 85:1881-1892. [PMID: 32845091 DOI: 10.1002/cplu.202000409] [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: 05/26/2020] [Revised: 08/01/2020] [Indexed: 12/16/2022]
Abstract
A range of poly ethoxy ethyl glycinamide (PEE-G) dendron scaffolds with gadolinium (III) complexes attached were synthesized with a focus on product purity and high Gd(III) loading. The nuclear magnetic resonance relaxivity of these products was measured and compared with commercially available low-molecular-weight magnetic resonance imaging contrast agents. Over twice the relaxivity based on Gd(III) concentration, and up to 20-fold increase in relaxivity were observed based on molecular concentration. Relaxivity properties were observed to increase with both increasing molecular weight and number of Gd(III) complexes attached, however a plateau was reached for molecular weight increase. T1 and T2 relaxivity properties were also investigated at two different magnetic fields. Transverse relaxivity is unaffected by magnetic field strength whereas increase in longitudinal relaxivity was not as pronounced at the higher field.
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Affiliation(s)
- Rinu Shrestha
- Victoria University of Wellington, PO Box 33 436, Petone, 5046, New Zealand
| | | | - Andrew R Lewis
- Victoria University of Wellington, PO Box 33 436, Petone, 5046, New Zealand.,Callaghan Innovation, PO Box 31 310, Lower Hutt, 5010, New Zealand
| | - Phillip M Rendle
- Victoria University of Wellington, PO Box 33 436, Petone, 5046, New Zealand
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