The geminal structure of the compound N3P3Cl4(NH2)2 |
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| Affiliation: | 1. State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, People’s Republic of China;2. Department of Chemistry, University of Calgary, Calgary, Alberta T2N 1N4, Canada;1. Directorate of Communication and Information Technology, Council of Representatives of Iraq, Conferences Palace, Baghdad, Iraq;2. Department of Physics, Faculty of Science, Ataturk University, Erzurum, Turkey;3. Department of Physics Education, Faculty of Education, Kafkas University, Kars, Turkey;4. East Anatolia High Technology Application and Research Center, Atatürk University, 25240, Turkey;5. University of Tabuk, Department of Physics, Tabuk, Saudi Arabia;6. Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia;7. Wireless and Photonic Networks Research Centre, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia;1. Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China;2. College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China;3. State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China;1. Strathclyde Institute of Pharmacy & Biomedical Sciences, University of Strathclyde, Glasgow, UK;2. EPSRC Centre for Continuous Manufacturing & Advanced Crystallisation, University of Strathclyde, Glasgow, UK;3. Oral Product Development, Pharmaceutical Technology & Development, Operations, AstraZeneca, Macclesfield, UK;4. New Modalities and Parenteral Development, Pharmaceutical Technology & Development, Operations, AstraZeneca, Macclesfield, UK;1. Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China;2. State Key Laboratory of Respiratory Disease, Center for Chemical Biology and Drug Discovery, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China;3. China-New Zealand Joint Laboratory on Biomedicine and Health, Guangzhou 510530, China |
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| Abstract: | A comparison of the 31P NMR spectra of the compounds N3P3Cl5(NH2) and N3P3Cl4(NH2)2 suggests, but does not prove conclusively, that the NH2 groups are geminally arranged in molecules of the latter. A similar comparison of the spectra of the compounds N3P3Cl5(NPCl3) and N3P3Cl4 (NPCl3)2 indicates clearly that the NPCl3 groups in the latter are geminally arranged and implies strongly a geminal molecular structure for the precursor, N3P3Cl4(NH2)2. The calculated 31P spectrum for geminal N3P3Cl4(NPCl3)2 agrees closely with the observed. A mechanism accounting for geminal substitution in the reaction of ammonia with trimeric phosphonitrilic chloride is proposed. Procedures for preparing and purifying the compounds N3P3Cl5(NH2), N3P3Cl5(NPCl3), and N3P3Cl4(NPCl3)2 are described. |
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