Reactions of indium phosphide cluster cations with ammonia and trimethylamine |
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| Affiliation: | 1. College of Chemistry, Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources Environmental and Chemical Engineering, Nanchang University, Nanchang 330031, Jiangxi, China;2. Chemical Sciences Divison, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA;3. State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China;1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;2. Department of Chemistry and Biochemistry, Southern Illinois University, Carbondale, IL 62901, USA;3. Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA 99352, USA;1. Laboratoire des Radioisotopes, Université d''Antananarivo, BP 3383, Route d''Andraisoro, 101 Antananarivo, Madagascar;2. Conservation International, 2011 Crystal Drive, Arlington, VA 22202, USA;3. Ecole Supérieure des Sciences Agronomiques, Département Eaux et Forêts, Université d''Antananarivo, BP 175, Antananarivo 101, Madagascar;4. Conservation International Madagascar, Villa Hajanirina, lot II W 27D, Rue Vittori Francois, Ankorahotra, 101 Antananarivo, Madagascar;5. Ecole Supérieure Polytechnique d''Antananarivo, Département Ingénierie pétrolière, Université d''Antananarivo, BP 1500, Antananarivo 101, Madagascar;1. Plant Ecology and Environmental Science Division, CSIR-National Botanical Research Institute, Lucknow 226001, India;2. Department of Botany, Banaras Hindu University, Varanasi 221005, India |
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| Abstract: | ![]()
Chemistry of indium phosphide clusters is studied using the powerful trapped ion cell techniques of Fourier transform ion cyclotron resonance (FTICR) mass spectrometry in conjunction with an external cluster source and ion guide. The external source is capable of generating a wide range of cluster ions which the ion guide loads with high efficiency into the FTICR cell. The differential pumping of the ion guide allows for operation of the FTICR at requisite low pressure conditions while extracting clusters generated in a high pressure environment. Highly selective reactions of indium phosphide clusters are observed with ammonia and trimethylamine. Of all the InxP+y cluster sizes and stoichiometries studied, only the indium dimer ion reacts exothermically with ammonia. Thermalized In+2 reacts by indium ion transfer to ammonia. Owing to its much higher basicity, trimethylamine is much more reactive. The smaller indium phosphide clusters react by indium ion transfer to trimethylamine. As the clusters become larger, however, the reaction probability decreases to zero. |
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