6 Atoms LABORATORY DETECTION OF THE C5H RADICAL C. A. Gottlieb, E. W. Gottlieb, and P. Thaddeus Astronomy and Astrophysics,164: L5-L6,1986 link to paper LABORATORY DETECTION OF A SECOND CARBON CHAIN CARBENE: BUTATRIENYLIDENE, H2CCCC T. C. Killian, J. M. Vrtilek, C. A. Gottlieb, E. W. Gottlieb, and P. Thaddeus Astrophysical Journal Letters, 365: L89-L92, 1990 link to paper ASTRONOMICAL DETECTION OF H2CCCC J. Cernicharo, C. A. Gottlieb, M. Guelin, T. C. Killian, P. Thaddeus, and J. M. Vrtilek Astrophysical Journal Letters, 368: L43-L45, 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 STRUCTURE OF THE CUMULENE CARBENE BUTRIENYLIDENE: H2CCCC M. J. Travers, Wei Chen, Stewart E. Novick, J. M. Vrtilek, C. A. Gottlieb, and P. Thaddeus Journal of Molecular Spectroscopy, 180: 75-80, 1996 link to paper LABORATORY DETECTION OF THE RING-CHAIN CARBENES HC4N AND HC6N M. C. McCarthy, J. -U. Grabow, M. J. Travers, W. Chen, C. A. Gottlieb, and P. Thaddeus The Astrophysical Journal, 513: 305-310, 1999 link to paper HYPERFINE STRUCTURE OF THE C5H, C6H, AND C8H RADICALS M. C. McCarthy, W. Chen, A. J. Apponi, C. A. Gottlieb, and P. Thaddeus The Astrophysical Journal, 520: 158-161, 1999 link to paper ROTATIONAL SPECTRUM AND THEORETICAL STRUCTURE OF THE CARBENE HC4N M. C. McCarthy, A. J. Apponi, V. D. Gordon, C. A. Gottlieb, P. Thaddeus, T. Daniel Crawford, and John F. Stanton Journal of Chemical Physics, 111: 6750-6754, 1999 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 LABORATORY DETECTION OF FIVE NEW LINEAR SILICON CARBIDES: SiC3, SiC5, SiC6,SiC7, AND SiC8 M. C. McCarthy, A. J. Apponi, C. A. Gottlieb, and P. Thaddeus The Astrophysical Journal, 538: 766-772, 2000 link to paper THE CYCLIC C5H RADICAL A. J. Apponi, M. E. Sanz, C. A. Gottlieb, M. C. McCarthy, and P. Thaddeus The Astrophysical Journal, 547: L65-L68, 2001 link to paper ROTATIONAL SPECTRA OF SiCN, SiNC, AND THE SiCnH (n= 2, 4-6) RADICALS M. C. McCarthy, A. J. Apponi, C. A. Gottlieb, and P. Thaddeus Journal of Chemical Physics, 115: 870-877, 2001 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 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 THE ROTATIONAL SPECTRUM AND CARBON-13 HYPERFINE STRUCTURE OF THE C3H, C5H, C6H, AND C7H RADICAL M. C. McCarthy and P. Thaddeus Journal of Chemical Physics, 122: 174308 (1-9), 2005 link to paper MONOBRIDGED Si2H4 M. C. McCarthy, Z. Yu, L. Sari, H. F. Schaefer III, and P. Thaddeus Journal of Chemical Physics, 124: 074303 (1-7), 2006 link to paper