个人简介

Education: B.S., Technical University of Stuttgart, Germany, 1957 M.S., Technical University of Stuttgart, Germany, 1960 Ph. D., Technical University of Stuttgart, Germany, 1961 Professional Employment: 2005-Present Consultant, Science and Technology Applications, LLC 1994-Present Research Professor, University of Southern California, and Adjunct Professor, University of Idaho, Moscow, ID 1994-2005 Senior Staff Advisor, Air Force Research Laboratory, Edwards AFB, CA 1967-1994 Manager, Exploratory Chemistry, Rocketdyne, Canoga Park, CA Senior Research Chemist, Stauffer Chemical Co., Richmond, CA Thesis work carried out for Farbwerke Hoechst, Frankfurt, Germany Teaching Assistant, Technical University of Stuttgart, Germany

研究领域

Inorganic Chemistry

Our interests are very broad and range from very basic studies to applied research of academic, Government or industrial interest. We are particularly interested in high energy density materials (HEDM), inorganic main group chemistry, polynitrogen and nitroamine chemistry, high-oxygen carriers, energetic ionic liquids, chemistry at the limits of oxidation and coordination, and the synthesis and characterization of novel carbocation and fluorocarbon compounds. Our work exploits the synergism of theory and synthesis and greatly benefits from close collaborations with numerous groups of theoreticians. The main goal of our research is to advance the state of the art and strive for spectacular breakthroughs, rather than settling for small incremental improvements. Typical examples of breakthrough achievements, achieved by us in the past, include the first syntheses of novel cations, such as NF4+ [1] or ClF6+ [2], which are derived from non-existing parent molecules, the first chemical synthesis of elemental fluorine [3] which according to the textbooks was impossible, the synthesis of XeF5- and IF52- [4] which constitute the first examples of pentagonal planar AX5 species, the development of a synthesis for truly anhydrous soluble "naked" fluoride ion [5] which has led to a renaissance in high coordination number chemistry [6], the synthesis of N5+ [7] which is the only stable polynitrogen species in more than 100 years and only the second known man-made polynitrogen ion that can be prepared on a macroscopic scale, the spectroscopic identification of the cyclic N5- anion [8], the synthesis of the first oxygen-balanced energetic ionic liquids for liquid monopropellant applications [9], the preparation and characterization of over 40 new polyazides [10] and their combination with energetic counter-ions as for example in [N5]+[B(N3)4)]- [11], the synthesis of NO2)CN, a stable ultra-high energy-density compound [12] and FN(NO2))2) [13], the bulk synthesis of the CF3)- anion [14], and the developments of the first quantitative scales for oxidizer strengths [15] and Lewis acidities [16].

近期论文

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“Adduct Formation of Tantalum(V)- and Niobium(V) Fluoride with Neutral Group 15 Donor Ligands, an Example for Ligand Induced Self-Ionization,” Z. Anorg. Allg. Chem., 640, 1568 (2014), R. Haiges, P. Deokar, and K. O. Christe. “Structures, Vibrational Frequencies, and Stabilities of Halogen Cluster Anions and Cations, Xn+/-, n = 3, 4 and 5,” Inorg. Chem., 53, 8136 (2014), K. S. Thanthiriwatte, J. Spruell, D. A. Dixon, K. O. Christe, and H. D. B. Jenkins. “The Long-Lived Trifluoromethide Anion: A Key Intermediate in Nucleophilic Trifluoromethylations,” Angew. Chem. Int. Ed., 53, 11575 (2014), G. K. S. Prakash, F. Wang, Z. Zhang, R. Haiges, M. Rahm, K. O. Christe, T. Mathew, and G. A. Olah. “4-Oxo- or 1-Oxo-N7O+? A Computational and Experimental Study,” RSC Adv., 4, 28377 (2014), T. Yu, B. Wu, Y.-Z. Liu, W.-P. Lai, R. Haiges, and K. O. Christe. “Nitryl Cyanide, NCNO2,” Angew. Chem. Int. Ed., 53, 6893 (2014), M. Rahm, G. Belanger-Chabot, R. Haiges, and K. O. Christe. “Preparation of the First Manganese(III) and Manganese(IV) Azides,” Angew. Chem. Int. Ed., 53, 8200 (2014), R. Haiges, R. J. Buszek, J. A. Boatz, and K. O. Christe. “Coordination Adducts of Niobium(V) and Tantalum(V) Azide M(N3)5 (M = Nb, Ta) with Nitrogen Donor Ligands and their Self-Ionization,” Angew. Chem. Int. Ed., 53, 5431 (2014), R. Haiges, P. Deokar, and K. O. Christe. “[BH3C(NO2)3]-: The First Room-Temperature Stable (Trinitromethyl)borate,” Angew. Chem. Int. Ed., 52, 11002 (2013), G. Belanger-Chabot, M. Rahm, R. Haiges, and K. O. Christe. “Quantifying the Nature of Lone Pair Domains,” ChemPhysChem., 14, 3714 (2013), M. Rahm and K. O. Christe. “Unprecedented Conformational Variability in Main Group Inorganic Chemistry: the Tetraazidoarsenite and -Antimonite Salts A+[M(N3)4]- (A = NMe4, PPh4, (Ph3P)2N; M = As, Sb), Five Similar Salts Five Different Anion Structures,” Inorg. Chem., 52, 402 (2013), R. Haiges, M. Rahm, and K. O. Christe. “Bartlett’s discovery of noble gas fluorides, a milestone in chemical history,” Chem. Commun., 49, 4588 (2013), K. O. Christe. “Energetic High-Nitrogen Compounds. 5-(Trinitromethyl)-H-tetrazole and –tetrazolates: Preparation, Characterization and Conversion into 5-(Dinitromethyl)tetrazoles,” Inorg. Chem., 52, 7249 (2013), R. Haiges and K. O. Christe. “Energetic Bis(3,5-dinitro-1H-1,2,4-triazolyl)dihydro- and dichloroborates and Bis(5-nitro-2H-tetrazolyl)-, Bis(5-trinitromethyl)-, and Bis(5-fluorodinitromethyl-2H-tetrazolyl-2H-tetrazolyl)dihydroborate,” Inorg. Chem., 52, 5551 (2013), R. Haiges, C. Bigler Jones, and K. O. Christe. “Structural and Energetic Properties of Closed Shell XFn (X = Cl, Br, and I; n = 1-7) and XOnFm (X = Cl, Br, and I; n = 1-3; m = 0-6) Molecules and Ions Leading to Stability Predictions for Yet Unknown Compounds,” Inorg. Chem., 51, 10966 (2012), K. S. Thanthiriwatte, M. Vasilu, D. A. Dixon, and K. O. Christe. “Thermochemical Properties of Selenium Fluorides, Oxides and Oxofluorides,” Inorg. Chem., 51, 2472 (2012), V. E. Jackson, D. A. Dixon and K. O. Christe. “Binary Group 15 Polyazides. Structural Characterization of [Bi(N3)4]−, [Bi(N3)5]2−, [bipy·Bi(N3)5]2−, [Bi(N3)6]3−, bipy·As(N3)3, bipy·Sb(N3)3, and [(bipy)2·Bi(N3)3]2 and on the Lone Pair Activation of Valence Electrons,” Inorg. Chem., 51, 1127 (2012), R. Haiges, M. Rahm, D. A. Dixon, E. B. Garner, III, and K. O. Christe. “Preparation and Characterization of the Binary Group 13 Azides, M(N3)3 and M(N3)3·CH3CN (M = Ga, In, Tl), [Ga(N3)5]2-, and [M(N3)6]3- (M = In, Tl),” Angew. Chem. Int. Ed., 50, 8828 (2011), R. Haiges, J. A. Boatz, J. M. Williams, and K. O. Christe. “Corrigendum to “Selenium(IV) Fluoride and Oxofluoride Anions,” [J. Fluor. Chem., 131, 791 (2010)], J. Fluor. Chem., 132, 373 (2011), with D. A. Dixon, R. Haiges, M. Hopfinger, V. E. Jackson, T. M. Klapoetke, B. Krumm, and M. Scherr. “Preparation of Elemental Fluorine,” contributed chapter to book on “Efficient Preparation of Fluorine Compounds,” H. W. Roesky, Ed., John Wiley, 2013.