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Ralf Michael Haiges

Assistant Professor (Research) of Chemistry
Coordinator of the X-ray Crystallographic Facility

Contact Information
E-mail: haiges@usc.edu
Phone: (213) 740-3197
Office: LHI 106

LINKS
Curriculum Vitae
Personal Website
Course Information
 

Education
Ph.D. Inorganic Chemistry, Bergische University of Wuppertal, 10/2000
M.S. Chemistry, Bergische University of Wuppertal, 8/1997
B.S. Chemistry, Bergische University of Wuppertal, 8/1994
 

Academic Appointment, Affiliation, and Employment History
Postdoctoral Fellow, Bergische University of Wuppertal, 2000-2001   
 

Description of Research

Summary Statement of Research Interests
I am highly interested in Green Energetic Materials (GEMs). There is an ever growing demand for environmentally benign and non-toxic energetic materials for storage and controlled release of energy. GEMs are energetic materials that are virtually free of environmental hazards and toxicity issues during the course of their production, storage, use, and disposal. Our general research interests range from inorganic main group chemistry, organo fluorine chemistry, polynitrogen and polyazido compounds, all the way to energy storage and material science. We are also very interested in X-ray crystallography, NMR spectroscopy, vibrational spectroscopy, and quantum mechanical calculations. I am highly interested in high energy materials for energy storage and the controlled release of energy. The main goal of my research is the development of environmentally benign energetic materials.
 

Research Keywords
Inorganic Chemistry, Fluorine Chemistry, Energetic Materials, HEDM, Energy Storage, Polynitrogen, Polyazides, Crystallography
 

Research Specialties
Polynitrogen, Energetic Materials, Fluorine Chemistry, Inorganic Chemistry, HEDM, high oxidation states, NMR spectroscopy, crystallography
 

Other Research
Development of a signal processing software for NMR spectroscopy. This work is done in cooperation with Dr. Howard Taylor and Mr. Allan Kershaw at USC., 2006-  
 

Publications

Book Chapter
 

Journal Article
Haiges, R., Rahm, M., Christe, K. O. (2012). Chemical Cameleons, the Tetraazido Arsenite and Tetraazido Antimonite Salts A+[As(N3)4]- and A+[Sb(N3)4]- (A = NMe4, PPh4, PNP), Five Similar Salts, Five Different Anion Structures. Inorganic Chemistry.
Nieboer, J., Haiges, R., Hillary, W., Yu, X., Mercier, H. P., Gerken, M. (2012). Fluoride-Ion Acceptor Properties of WSF4: Synthesis, Characterization, and Computational Study of the WSF5–, and W2S2F9– Anions, and 19F NMR Spectroscopic Characterization of the W2OSF9– Anion. Inorganic Chemistry.
Prakash, G. K., Shao, N., Zhang, Z., Ni, C., Wang, F., Haiges, R., Olah, G. A. (2012). Facile synthesis of monofluoromethyl alcohols: Nucleophilic monofluoromethylation of aldehydes using TMSCF(SO2Ph)2. Journal of Fluorine Chemistry. Vol. 133 (0), pp. 27-32.
Krylov, I. S., Zakharova, V. M., Serpi, M., Haiges, R., Kashemirov, B. A., McKenna, C. E. (2012). Structure of Cyclic Nucleoside Phosphonate Ester Prodrugs: An Inquiry. Journal of Organic Chemistry/American Chemical Society. Vol. 77 (1), pp. 684-689.
Haiges, R., Rahm, M., Dixon, D. A., Garner, E. B., Christe, K. O. (2012). 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. Inorganic Chemistry/American Chemical Society. Vol. 51 (2), pp. 1127-1141.
Prakash, G. K., Wang, F., Zhang, Z., Ni, C., Haiges, R., Olah, G. A. (2012). Enantioselective Synthesis of ??-Stereogenic ??-Keto Esters via Formal Umpolung. Organic Letters/American Chemical Society. Vol. 14 (13), pp. 3260-3263.
Krylova, V. A., Djurovich, P. I., Aronson, J. W., Haiges, R., Whited, M. T., Thompson, M. E. (2012). Structural and Photophysical Studies of Phosphorescent Three-Coordinate Copper(I) Complexes Supported by an N-Heterocyclic Carbene Ligand. Organometallics/American Chemical Society.
Wang, S., Hall, L., Diev, V., Haiges, R., Wei, G., Xiao, X., Djurovich, P., Forrester, S., Thompson, M. (2011). N,N-Diarylanilinosquaraines and their application to organic photovoltaics. Chemistry of Materials. Vol. 23, pp. 4789-4798.
Haiges, R., Boatz, J. A., Williams, J. M., Christe, K. O. (2011). 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). Angewandte Chemie International Edition/WILEY-VCH Verlag. Vol. 50 (38), pp. 8828-8833.
Christe, K. O., Haiges, R., Boatz, J. A., Brooke Jenkins, H. D., Garner, E. B., Dixon, D. A. (2011). Why Are [P(C6H5)4]+N3- and [As(C6H5)4]+N3- Ionic Salts and Sb(C6H5)4N3 and Bi(C6H5)4N3 Covalent Solids? A Theoretical Study Provides an Unexpected Answer. Inorganic Chemistry/American Chemical Society. Vol. 50 (8), pp. 3752-3756.
Christe, K. O., Dixon, D. A., Haiges, R., Hopfinger, M., Jackson, V. E., Klapoetke, T. M., Krumm, B., Scherr, M. (2011). Corrigendum to "Selenium(IV) fluoride and oxofluoride anions" [J. Fluorine Chem. 131 (2010) 791-799]. Journal of Fluorine Chemistry. Vol. 132 (5), pp. 373.
Prakash, G. K., Wang, F., Ni, C., Shen, J., Haiges, R., Yudin, A. K., Mathew, T., Olah, G. A. (2011). Conformational Study of 9-Dehydro-9-Trifluoromethyl Cinchona Alkaloids via 19F NMR Spectroscopy: Emergence of Trifluoromethyl Moiety as a Conformational Stabilizer and a Probe. Journal of the American Chemical Society/American Chemical Society. Vol. 133 (26), pp. 9992-9995.
Czaun, M., Goeppert, A., May, R., Haiges, R., Prakash, G. K., Olah, G. A. (2011). Hydrogen Generation from Formic Acid Decomposition by Ruthenium Carbonyl Complexes. Tetraruthenium Dodecacarbonyl Tetrahydride as an Active Intermediate. ChemSusChem/WILEY-VCH Verlag. Vol. 4 (9), pp. 1241-1248.
B??a??ewska, K. M., Ni, F., Haiges, R., Kashemirov, B. A., Coxon, F. P., Stewart, C. A., Baron, R., Rogers, M. J., Seabra, M. C., Ebetino, F. H., McKenna, C. E. (2011). Synthesis, stereochemistry and SAR of a series of minodronate analogues as RGGT inhibitors. European Journal of Medicinal Chemistry. Vol. 46 (10), pp. 4820-4826.
Haiges, R., Boatz, J. A., Christe, K. O. (2010). The Syntheses and Structure of the First Vanadium(IV) and Vanadium(V) Binary Azides, V(N3)4, [V(N3)6]2-, and [V(N3)6]-. Angewandte Chemie International Edition. Vol. 49 (43), pp. 8008-8012. http://onlinelibrary.wiley.com/doi/10.1002/anie.200906537/abstract
Christe, K. O., Dixon, D. A., Grant, D. J., Haiges, R., Tham, F. S., Vij, A., Vij, V., Wang, T. H., Wilson, W. W. (2010). Coverpage: Dinitrogen Difluoride Chemistry. Improved Syntheses of cis- and trans-N2F2, Synthesis and Characterization of N2F+Sn2F9-, Ordered Crystal Structure of N2F+Sb2F11-, High-Level Electronic Structure Calculations of cis-N2F2, trans-N2F2, F2N = N, and N2F+, and Mechanism of the trans-cis Isomerization of N2F2. Inorganic Chemistry. Vol. 49 (15), pp. 6823-6833.
Christe, K. O., Dixon, D. A., Haiges, R., Hopfinger, M., Jackson, V. E., Klap??tke, T. M., Krumm, B., Scherr, M. (2010). Selenium(IV) fluoride and oxofluoride anions. Journal of Fluorine Chemistry. Vol. 131 (7), pp. 791-799.
Christe, K. O., Haiges, R., Wilson, W. W., Boatz, J. A. (2010). Synthesis and Properties of N7O+. Inorganic Chemistry. Vol. 49 (3), pp. 1245-1251.
West, W. C., Shevade, A., Soler, J., Kulleck, J., Smart, M. C., Ratnakumar, B. V., Moran, M., Haiges, R., Christe, K. O., Prakash, G. K. (2010). Sulfuryl and Thionyl Halide-Based Ultralow Temperature Primary Batteries. Journal of the Electrochemical Society/ECS. Vol. 157 (5), pp. A571-A577.
Prakash, G. K., Wang, F., Shao, N., Mathew, T., Rasul, G., Haiges, R., Stewart, T., Olah, G. A. (2009). A persistent alpha-fluorocarbanion and its analogues: preparation, characterization, and computational study. Angew.Chem.Int.Ed Engl.. Vol. 48 (29), pp. 5358-5362.
Nguyen, M. T., Matus, M. H., Ngan, V. T., Haiges, R., Christe, K. O., Dixon, D. A. (2008). Energetics and mechanism of the decomposition of trifluoromethanol. Journal of Physical Chemistry A. Vol. 112 (6), pp. 1298-1312.
Christe, K. O., Hegge, J., Hoge, B., Haiges, R. (2007). Convenient access to trifluoromethanol. Angewandte Chemie-International Edition. Vol. 46 (32), pp. 6155-6158.
Haiges, R., Boatz, J. A., Yousufuddin, M., Christe, K. O. (2007). Monocapped trigonal-prismatic transition-metal heptaazides: Syntheses, properties, and structures of [Nb(N-3)(7)](2-) and [Ta(N-3)(7)](2-). Angewandte Chemie-International Edition. Vol. 46 (16), pp. 2869-2874.
Klapotke, T. M., Krumm, B., Scherr, M., Haiges, R., Christe, K. O. (2007). The binary selenium(IV) azides Se(N-3)(4), [Se(N-3)(5)](-), and [Se(N-3)(6)](2-). Angewandte Chemie-International Edition. Vol. 46 (45), pp. 8686-8690.
Schneider, S., Gerken, M., Haiges, R., Schroer, T., Boatz, J. A., Dixon, D. A., Grant, D. J., Christe, K. O. (2007). Synthesis and characterization of silyldichloramines, their reactions with F- ions, instability of N2Cl2 and NCl2-, and formation of NCl3. Inorganic Chemistry. Vol. 46 (1), pp. 93-102.
Wilson, W. W., Haiges, R., Boatz, J. A., Christe, K. O. (2007). Synthesis and characterization of (Z)-[N3NFO](+) and (E)-[N3NFO](+). Angewandte Chemie-International Edition. Vol. 46 (17), pp. 3023-3027.
Haiges, R., Boatz, J. A., Schroer, T., Yousufuddin, M., Christe, K. O. (2006). Experimental evidence for linear metal-azido coordination: The binary Group 5 azides [Nb(N-3)(5)], [Ta(N-3)(5)], [Nb(N-3)(6)](-), and [Ta(N-3)(6)](-) and 1 : 1 acetonitrile adducts [Nb(N-3)(5)(CH3CN)] and [Ta(N-3)(5)(CH3CN)]. Angewandte Chemie-International Edition. Vol. 45 (29), pp. 4830-4835.
Haiges, R., Gerken, M., Iuga, A., Bau, R., Christe, K. O. (2006). Are the NF4+ cations in NF4BF4 really nontetrahedral?. Inorganic Chemistry. Vol. 45 (19), pp. 7981-7984.
Haiges, R., Wagner, R., Boatz, J. A., Yousufuddin, M., Etzkorn, M., Prakash, G. K., Christe, K. O., Chapman, R. D., Welker, M. E., Kreutzberger, C. B. (2006). Preparation, characterization, and crystal structures of the SO3NHF- and SO3NF2- ions. Angewandte Chemie-International Edition. Vol. 45 (31), pp. 5179-5184.
Jones, C. B., Haiges, R., Schroer, T., Christe, K. O. (2006). Oxygen-balanced energetic ionic liquid. Angewandte Chemie-International Edition. Vol. 45 (30), pp. 4981-4984.
Kunikeev, S. D., Taylor, H. S., Schroer, T., Haiges, R., Jones, C. J., Christe, K. O. (2006). New signal processing method for the faster observation of natural-abundance N-15 NMR spectra and its application to N-5(+). Inorganic Chemistry. Vol. 45 (1), pp. 437-442.
Haiges, R., Boatz, J. A., Bau, R., Schneider, S., Schroer, T., Yousufuddin, M., Christe, K. O. (2005). Polyazide chemistry: The first binary group 6 azides, Mo(N-3)(6), W(N-3)(6), [Mo(N-3)(7)](-), and [W(N-3)(7)](-), and the [NW(N-3)(4)](-) and [NMo(N-3)(4)](-) ions. Angewandte Chemie-International Edition. Vol. 44 (12), pp. 1860-1865.
Haiges, R., Schroer, T., Yousufuddin, M., Christe, K. O. (2005). The syntheses and structures of Ph4EN3 (E = P, As, Sb), an example for the transition from ionic to covalent azides within the same main group. Zeitschrift fur Anorganische und Allgemeine Chemie. Vol. 631 (13-14), pp. 2691-2695.
Schroer, T., Haiges, R., Schneider, S., Christe, K. O. (2005). The race for the first generation of the pentazolate anion in solution is far from over. Chemical Communications. (12), pp. 1607-1609.
Haiges, R., Boatz, J. A., Schneider, S., Schroer, T., Yousufuddin, M., Christe, K. O. (2004). The binary group 4 azides [Ti(N-3)(4)] [P(C6H5)(4)][Ti(N-3)(5)], and IP(C6H5)(4)](2)[Ti(N-3)(6)] and on linear Ti-N-NN coordination. Angewandte Chemie-International Edition. Vol. 43 (24), pp. 3148-3152.
Haiges, R., Boatz, J. A., Vij, A., Vij, V., Gerken, M., Schneider, S., Schroer, T., Yousufuddin, M., Christe, K. O. (2004). Polyazide chemistry: Preparation and characterization of As(N-3)(5), Sb(N-3)(5), and IP(C6H5)(4)] [Sb(N-3)(6)]. Angewandte Chemie-International Edition. Vol. 43 (48), pp. 6676-6680.
Haiges, R., Schneider, S., Schroer, T., Christe, K. O. (2004). High-energy-density materials: Synthesis and characterization of N-5(+)[P(N-3)(6)](-), N-5(+)[B(N-3)(4)](-), N-5(+)[HF2](-)center dot nHF,N-5(+)[BF4](-), N-5(+)[PF6](-), and N-5(+)[SO3F](-). Angewandte Chemie-International Edition. Vol. 43 (37), pp. 4919-4924.
Haiges, R., Vij, A., Boatz, J. A., Schneider, S., Schroer, T., Gerken, M., Christe, K. O. (2004). First structural characterization of binary As-III and Sb-III azides. Chemistry-A European Journal. Vol. 10 (2), pp. 508-517.
Schneider, S., Haiges, R., Schroer, T., Boatz, J., Christe, K. O. (2004). The [NH3Cl](+). Angewandte Chemie-International Edition. Vol. 43 (39), pp. 5213-5217.
Vij, A., Wilson, W. W., Vij, V., Corley, R. C., Tham, F. S., Gerken, M., Haiges, R., Schneider, S., Schroer, T., Wagner, R. I. (2004). Methyl tin(IV) derivatives of HOTeF5 and HN(SO2CF3)(2): A solution multinuclear NMR study and the X-ray crystal structures of (CH3)(2)SnCl(OTeF5) and [(CH3)(3)Sn(H2O)(2)][N(SO2CF3)(2)]. Inorganic Chemistry. Vol. 43 (10), pp. 3189-3199.
Christe, K. O., Gerken, M., Haiges, R., Schneider, S., Schroer, T., Tsyba, I., Bau, R. (2003). The (SO2)(2)N-3(-) anion. Inorganic Chemistry. Vol. 42 (2), pp. 416-419.
Haiges, R., Boatz, J. A., Vij, A., Gerken, M., Schneider, S., Schroer, T., Christe, K. O. (2003). Polyazide chemistry: Preparation and characterization of Te(N-3)(4) and [P(C6H5)(4)](2)[Te(N-3)(6)] nd evidence for [N(CH3)(4)]Te(N-3)(5)]. Angewandte Chemie-International Edition. Vol. 42 (47), pp. 5847-5851.
Christe, K. O., Boatz, J. A., Gerken, M., Haiges, R., Schneider, S., Schroer, T., Tham, F. S., Vij, A., Vij, V., Wagner, R. I., Wilson, W. W. (2002). Synthesis and characterization of the SO2N3-, (SO2)(2)N-3(-), and SO3N3- anions. Inorganic Chemistry. Vol. 41 (16), pp. 4275-4285.
Christe, K. O., Gerken, M., Haiges, R., Schneider, S., Schroer, T., Tham, F. S., Vij, A. (2002). Tritylsulfinylamine: a new member in the family of sulfinylamines. Solid State Sciences. Vol. 4 (11-12), pp. 1529-1534.
Gerken, M., Boatz, J. A., Kornath, A., Haiges, R., Schneider, S., Schroer, T., Christe, K. O. (2002). The F-19 NMR shifts are not a measure for the nakedness of the fluoride anion. Journal of Fluorine Chemistry. Vol. 116 (1), pp. 49-58.
Gerken, M., Schneider, S., Schroer, T., Haiges, R., Christe, K. O. (2002). Improved synthesis of CsN3. Zeitschrift fur Anorganische und Allgemeine Chemie. Vol. 628 (5), pp. 909-910.
Haiges, R., Christe, K. O. (2002). An improved method for product separation in metathetical reactions and its demonstration for the synthesis of anhydrous cesium salts. Zeitschrift fur Anorganische und Allgemeine Chemie. Vol. 628 (8), pp. 1717-1718.
Eujen, R., Haiges, R. (1998). Reactions of donor-free (CF3)(2)Cd with phosphorus(V) halides: Insertion of difluorocarbene and direct synthesis of (CF3)(3)PF2. Zeitschrift fur Naturforschung Section B-A Journal of Chemical Sciences. Vol. 53 (12), pp. 1455-1460.
 

Honors and Awards
The Robert Bau Award, USC, Spring 2011   
Arthur Adamson Award 2004, USC, 2003-2004   
Research Stipend of the DFG, Bonn, 2001-2002   
Award for Excellence in Master's Thesis, University of Wuppertal, 1998-1999   
 

Service to the Profession

Professional Memberships
American Crystallographic Association, 2009-  
American Chemical Society, 2001-  
Gesellschaft Deutscher Chemiker (GdCh), 1996-  
 
 
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