5 Atoms LABORATORY DETECTION OF THE C3N AND C4H FREE RADICALS C. A. Gottlieb, E. W. Gottlieb, P. Thaddeus, and H. Kawamura Astrophysical Journal, 275: 916- 921,1983 link to paper LABORATORY AND ASTRONOMICAL IDENTIFICATION OF CYCLOPROPENYLIDENE, C3H2 P. Thaddeus, J. M. Vrtilek, and C. A. Gottlieb Astrophysical Journal, 299: L63-L66, 1985 link to paper THE RADIO SPECTRUM OF CYCLOPROPENE J. M. Vrtilek, C. A. Gottlieb, T. J. LePage, and P. Thaddeus Astrophysical Journal, 316: 826-829, 1987 link to paper LABORATORY AND ASTRONOMICAL SPECTROSCOPY OF C3H2, THE FIRST INTERSTELLAR ORGANIC RING J. M. Vrtilek, C. A. Gottlieb, and P. Thaddeus Astrophysical Journal, 314: 716-725, 1987 link to paper NEW DOUBLETS IN IRC+ 10216: VIBRATIONALLY EXCITED C4H? M. Guelin, J. Cernicharo, S. Navarro, D. R. Woodward, C. A. Gottlieb,and P. Thaddeus Astronomy and Astrophysics,182: L37-L39, 1987 link to paper THE RADIO SPECTRUM OF THE C4D RADICAL D. R. Woodward, J. C. Pearson, C. A. Gottlieb,and P. Thaddeus Astrophysical Journal Letters, 333: L29-L31, 1988 link to paper LABORATORY DETECTION OF PROPADIENYLIDENE, H2CCC J. M. Vrtilek, C. A. Gottlieb, E. W. Gottlieb, T. C. Killian, and P. Thaddeus Astrophysical Journal Letters, 364: L53-L56, 1990 link to paper ASTRONOMICAL DETECTION OF H2CCC J. Cernicharo, C. A. Gottlieb, M. Guelin, T. C. Killian, G. Paubert, P. Thaddeus, and J. M. Vrtilek Astrophysical Journal Letters, 398: L39-L41, 1991 link to paper OBSERVATIONS OF CUMULENE CARBENES, H2CCCC AND H2CCC, in TMC-1 Kentarou Kawaguchi, Norio Kaifu, Masatoshi Ohishi, Shin-ichi Ishikawa, Yasuhiro Hirahara, Satoshi Yamamoto, Shuji Saito, Shuro Takano, Akinori Murakami, J. M. Vrtilek, Carl A. Gottlieb, Patrick Thaddeus, and William M. Irvine Publications of the Astronomical Society of Japan, 43: 607-619, 1991 link to paper THE ROTATIONAL SPECTRUM OF THE CARBON CHAIN RADICAL HCCCO A. L. Cooksy, J. K. G. Watson, C. A. Gottlieb, and P. Thaddeus Astrophysical Journal Letters, 386: L27-L30, 1992 link to paper MILLIMETER-WAVE SPECTRA OF THE HCCCO AND DCCCO RADICALS A. L. Cooksy, J. K. G. Watson, C. A. Gottlieb, and P. Thaddeus Journal of Molecular Spectroscopy,153: 610-626, 1992 link to paper MILLIMETER-WAVE SPECTRUM OF VIBRATIONALLY EXCITED CYCLOPROPENYLIDENE c-C3H2 R. Mollaaghababa, C.A. Gottlieb, J. M. Vrtilek, and P. Thaddeus Journal of Chemical Physics, 99: 890-896, 1993 link to paper STRUCTURE OF PROPADIENYLIDENE, H2CCC C. A. Gottlieb, T. C. Killian, P. Thaddeus P. Botschwina, J. Flugge, and M. Oswald Journal of Chemical Physics, 98: 4478-4485, 1993 link to paper THE STRUCTURE OF THE HCCCO RADICAL. ROTATIONAL SPECTRA AND HYPERFINE STRUCTURE OF MONOSUBSTITUTED ISOTOPOMERS A. L. Cooksy, J. K. G. Watson, C. A. Gottlieb, and P. Thaddeus Journal of Chemical Physics, 101: 178-186, 1994 link to paper A MILLIMETER-WAVE STUDY AND ASTRONOMICAL SEARCH FOR THE HCCCS RADICAL M. C. McCarthy, J. M. Vrtilek, E. W. Gottlieb, F.-M. Tao, C. A. Gottlieb, and P. Thaddeus Astrophysical Journal, 431: L127-L130, 1994 link to paper STRUCTURE OF THE CCCN AND CCCCH RADICALS: ISOTOPIC SUBSTITUTION AND ab initio THEORY M. C. McCarthy, C. A. Gottlieb, P. Thaddeus, M. Horn and P. Botschwina Journal of Chemical Physics, 103: 7820-7827, 1995 link to paper CARBON-13 HYPERFINE STRUCTURE OF THE CCCCH RADICAL Wei Chen, Stewart E. Novick, M. C. McCarthy, C. A. Gottlieb, and P. Thaddeus Journal of Chemical Physics, 103: 7828-7833, 1995 link to paper STRUCTURES, ELECTRONIC PROPERTIES, AND ISOMERIZATION OF THE HCCCO RADICAL A. L. Cooksy, F.-M. Tao, W. Klemperer, and P. Thaddeus Journal of Physical Chemistry, 99: 11095-11100,1995 link to paper LABORATORY MEASUREMENT OF THE HYPERFINE STRUCTURE OF HCCCO Wei Chen, Stewart E. Novick, M. C. McCarthy, M. J. Travers, A. L. Cooksy and P. Thaddeus Astrophysical Journal, 462: 561-562, 1996 link to paper THE ROTATIONAL SPECTRA OF THE HCCCNH+, NCCNH+, AND CH3CNH+ IONS C. A. Gottlieb, A. J. Apponi, M. C. McCarthy, P. Thaddeus, and H. Linnartz Journal of Chemical Physics, 113: 1910-1915, 2000 link to paper STRUCTURES OF THE LINEAR SILICON CARBIDES SiC4 AND SiC6: ISOTOPIC SUBSTITUTION AND AB INITIO THEORY V. D. Gordon, E. S. Nathan, A. J. Apponi, M. C. McCarthy, P. Thaddeus, and P. Botschwina Journal of Chemical Physics, 113: 5311-5320, 2000 link to paper ROTATIONAL SPECTRA OF SULFUR-CARBON CHAINS I. THE RADICALS C4S, C5S, C6S, C7S, C8S, AND C9S V. D. Gordon, M. C. McCarthy, A. J. Apponi, and P. Thaddeus Astrophysical Journal Supplement Series, 134: 311-317, 2001 link to paper CARBON-13 ISOTOPIC SPECIES OF H2C3, H2C4, AND H2C5: HIGH-RESOLUTION ROTATIONAL SPECTRA M. C. McCarthy and P. Thaddeus Journal of Molecular Spectroscopy, 211: 235-240, 2002 link to paper THE ROTATIONAL SPECTRA OF H2CCSi AND H2C4Si M. C. McCarthy and P. Thaddeus Journal of Molecular Spectroscopy, 211: 228-234, 2002 link to paper AB INITIO THEORY AND ROTATIONAL SPECTRA OF LINEAR CARBON CHAINS SiCnS Peter Botschwina, M. Eugenia Sanz, Michael C. McCarthy, and Patrick Thaddeus Journal of Chemical Physics, 116: 10719-10729, 2002 link to paper ROTATIONAL SPECTRA OF THE NITROGEN-SULFUR CARBON CHAINS NCnS, n = 1-7 M. C. McCarthy, A. L. Cooksy, S. Mohamed, V. D. Gordon, and P. Thaddeus Astrophysical Journal Supplement Series, 144: 287-297, 2003 link to paper MONO- AND DIBRIDGED ISOMERS OF SI2H3 AND SI2H4: THE TRUE GROUND STATE GLOBAL MINIMA. THEORY AND EXPERIMENT IN CONCERT Levent Sari, M. C. McCarthy, Henry F. Schaefer III, and P. Thaddeus Journal of the American Chemical Society, 125: 11409-11417, 2003 link to paper NUCLEAR HYPERFINE INTERACTION OF ROTATING HYDROGEN: A SPECTROSCOPIC INVESTIGATION OF HYDROGEN-OCS VAN DER WAALS COMPLEXES Z. Yu, K. J. Higgins, W. Klemperer, M.C. McCarthy, and P. Thaddeus Journal of Chemical Physics, 123: 221106 (1-4), 2005 link to paper VIBRATIONAL EXCITATION AND RELAXATION OF FIVE POLYATOMIC MOLECULES IN AN ELECTRICAL DISCHARGE M. Eugenia Sanz, M. C. McCarthy, and P. Thaddeus Journal of Chemical Physics, 122: 194319 (1-10), 2005 link to paper Rotational Spectra of the Carbon Chain Negative Ions C4H- AND C8H- H. Gupta, S. Brünken, F. Tamassia, C. A. Gottlieb, M. C. McCarthy, and P. Thaddeus Astrophysical Journal Letters, 655: L57-L60, 2007 link to paper Astronomical Detection of C4H-, the Second Interstellar Anion J. Cernicharo, M. Guelin, M. Agundez, K. Kawaguchi, M. C. McCarthy, and P. Thaddeus Astronomy and Astrophysics, 467: L37-L40, 2007 link to paper Rotational Spectra of the van der Waals Complexes of Molecular Hydrogen and OCS Z. Yu, K. J. Higgins, W. Klemperer, M. C. McCarthy, P. Thaddeus, K. Liao, amd W. Jäger Journal of Chemical Physics, 127: 054305/1-8, 2007 link to paper