(abstract links go to journal pages; abbreviations are expanded on the JOURNALS link page)	11160 articles posted since 2003	Featured Cover Schneiker, et al., Non-energetic, Low-Temperature Formation of Cα-Glycyl Radical, a Potential Interstellar Precursor of Natural Amino Acids J Phys Chem Lett 12, 6744-6751 (2021)

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Dedicated Journal Issues Acc Chem Res Astrochemistry and Planetary Science 2021 Phys Chem Chem Phys 120(8) Theory, experiment, and simulations in laboratory astrochemistry 2018 Int J Quantum Chem 117(2) Computational Astrochemistry 2017 Faraday Discuss 168 Astrochemistry of Dust, Ice and Gas 2014 Chem Rev 113(12) Astrochemistry 2013 J Phys Chem A 117(39) Oka Festschrift 2013 AIP Conf Proc 1541 Astrochem2012 2013 Phil Trans A 371(1994) Surface Science in the ISM 2013 Phil Trans A 370(1978) Chemistry, Astronomy and Physics of H+ 3 2012 Faraday Discuss 147 Chemistry of the Planets 2010 J Phys Chem A 113(42) Chemistry: Titan Atmosphere 2009 Faraday Discuss 133 Chemical Evolution of the Universe 2006 Publications feartured in the news are indicated with hypertext annotations and this emoticon:  Click here to see the world-wide contributions to astrochemistry.

New Articles Added 25 July 2021
	H2 molecular gas absorption-selected systems trace CO molecular gas-rich galaxy overdensities A. Klitsch, C. Péroux, M. A. Zwaan, A. De Cia, C. Ledoux, and S. Lopez MNRAS 506, 514-522 (2021)
	Molecular line signatures of cloud-cloud collisions F. D. Priestley and A. P. Whitworth MNRAS 506, 775-780 (2021)
	Synthesis of the first nitrogen-heterocycles in interstellar ice analogues containing methylamine (CH3NH2) exposed to UV radiation: formation of trimethylentriamine (TMT, c-(-CH2-NH)3) and hexamethylentetramine (HMT, (CH2)6N4) H. Carrascosa, C. González Díaz, G. M. Muñoz Caro, P. C. Gómez, and M. L. Sanz MNRAS 506, 791-805 (2021)
	Rotational (de)-excitation of HMgNC in collision with He M. A. Amor, K. Hammami, and L. Wiesenfeld MNRAS 506, 957-962 (2021)
	On the formation of deuterated methyl formate in hot corinos Z. Awad, A. Coutens, S. Viti, and J. Holdship MNRAS 506, 1019-1030 (2021)
	How does thermal scattering shape the infrared spectra of cloudy exoplanets? A theoretical framework and consequences for atmospheric retrievals in the JWST era J. Taylor, V. Parmentier, M. R. Line, E. K. H. Lee, P. G. J. Irwin, and S. Aigrain MNRAS 506, 1309-1332 (2021)
	Complex structures synthesized in shock processing of nucleobases - implications to the origins of life V. S. Surendra, V. Jayaram, M. Muruganantham, T. Vijay, S. Vijayan, P. Samarth, H. Hill, Anil Bhardwaj, N. J. Mason, and B. Sivaraman Int J Astrobio 20, 285-293 (2021)
	Presence of water on exomoons orbiting free-floating planets: a case study P. J. Ávila, T. Grassi, S. Bovino, A. Chiavassa, B. Ercolano, S. O. Danielache, and E. Simoncini Int J Astrobio 20, 300-311 (2021)
	Astrobiologists are rational but not Bayesian W. Bains and J. J. Petkowski Int J Astrobio 20, 312-318 (2021)
	Mid-J CO Line Observations of Protostellar Outflows in the Orion Molecular Clouds M. Kang, M. Choi, F. Wyrowski, G. Kim, J. H. Bieging, M.-R. Kim, G. Park, S. T. Megeath, Y. Choi, S.-J. Kang, H. Yoo, and P. Manoj ApJS 255, 2 (2020)
	Volcanically extruded phosphides as an abiotic source of Venusian phosphine N. Truong and J. I. Lunine Proc Nat Acad Sci 118, e2021689118 (2021) VOLCANIC ACTIVITY ON VENUS COULD EXPLAIN PHOSPHINE
	Non-energetic, Low-Temperature Formation of Cα-Glycyl Radical, a Potential Interstellar Precursor of Natural Amino Acids A. Schneiker, S. Góbi, P. R. Joshi, G. Bazsó, Y.-P. Lee, and G. Tarczay J Phys Chem Lett 12, 6744-6751 (2021)
	Spectroscopic Characterization of the First and Second Excited States of the HOSO Radical V. J. Esposito, T. Trabelsi, N. Rohacs, and J. S. Francisco J Phys Chem A 125, 6254-6262 (2021)
	The impact of water vapor on the OH reactivity toward CH3CHO at ultra-low temperatures (21.7-135.0 K): Experiments and theory E. M. Neeman, D. González, S. Blázquez, B. Ballesteros, A. Canosa, M. Antiñolo, L. Vereecken, J. Albaladejo, and E. Jiménez J Chem Phys 155, 034306 (2021)
	Laboratory spectroscopy for astrophysics: Festschrift for Stephan Schlemmer P. Jensen, J. Oomens, O. Asvany, S. Thorwirth, and Holger S. P. Müller J Mol Spectrosc 379, 111492 (2021)
	High-resolution infrared study of vinyl acetylene: The ν13 (214 cm–1) and ν18 (304 cm–1) fundamentals C. P. Endres, G. C. Mellau, M. E. Harding, M.-A. Martin-Drumel, H. Lichau, and S. Thorwirth J Mol Spectrosc 379, 111469 (2021)
	Infrared predissociation spectroscopy of protonated methyl cyanide, CH3CNH+ A. N. Marimuthu, F. Huis in't Veld, S. Thorwirth, B. Redlich, and S. Brünken J Mol Spectrosc 379, 111477 (2021)
	Multiple helium tagging and OH vibrational spectroscopy of cold protonated glycine ions K. Geistlinger, F. Dahlmann, T. Michaelsen, M. Ončák, E. Endres, and R. Wester J Mol Spectrosc 379, 111479 (2021)
	Submillimeter wave spectroscopy of propanoic acid (CH3CH2COOH) and its ISM search V. V. Ilyushin, L. Margulès, B. Tercero, R. A. Motiyenko, O. Dorovskaya, E. A. Alekseev, E. R. Alonso, L. Kolesniková, J. Cernicharo, and J. C. Guillemin J Mol Spectrosc 379, 111454 (2021)
	Forbidden rotational transitions and astrophysics T. Oka J Mol Spectrosc 379, 111482 (2021)

New Articles from Last Week
	Rovibrational properties of the A1Π - X1Σ+ system of the AlCl radical J. Zhang, H. Li, and Y. Ma Comp Theor Chem 1202, 113307 (2021)
	Chemical signatures of a warped protoplanetary disc A. K Young, R. Alexander, C. Walsh, R. Nealon, A. Booth, and C. Pinte MNRAS 505, 4821-4837 (2021)
	Assessment of Isoprene as a Possible Biosignature Gas in Exoplanets with Anoxic Atmospheres Z. Zhan, S. Seager, J. J. Petkowski, C. Sousa-Silva, S. Ranjan, J. Huang, and W. Bains Astrobio 7, 765-792 (2021)
	Degradation of Amino Acids on Mars by UV Irradiation in the Presence of Chloride and Oxychlorine Salts D. Liu and S. P. Kounaves Astrobio 7, 793-801 (2021)
	No evidence of phosphine in the atmosphere of Venus from independent analyses G. L. Villanueva, M. Cordiner, P. G. J. Irwin, I. de Pater, B. Butler, M. Gurwell, S. N. Milam, C. A. Nixon, S. H. Luszcz-Cook, C. F. Wilson, V. Kofman, G. Liuzzi, S. Faggi, T. J. Fauchez, M. Lippi, R. Cosentino, A. E. Thelen, A. Moullet, P. Hartogh, E. M. Molter, S. Charnley, G. N. Arney, A. M. Mandell, N. Biver, A. C. Vandaele, K. R. de Kleer, and R. Kopparapu Nature Astron 5, 631-635 (2021)
	Reply to: No evidence of phosphine in the atmosphere of Venus from independent analyses J. S. Greaves, A. M. S. Richards, W. Bains, P. B. Rimmer, D. L. Clements, S. Seager, J. J. Petkowski, C. Sousa-Silva, S. Ranjan, and H. J. Fraser Nature Astron 5, 636-639 (2021)
	Phosphine gas in the cloud decks of Venus J. S. Greaves, A. M. S. Richards, W. Bains, P. B. Rimmer, H. Sagawa, D. L. Clements, S. Seager, J. J. Petkowski, C. Sousa-Silva, S. Ranjan, E. Drabek-Maunder, H. J. Fraser, A. Cartwright, I. Mueller-Wodarg, Z. Zhan, P. Friberg, I. Coulson, E. Lee, and J. Hoge Nature Astron 5, 655-664 (2021) PHOSPHINE ON VENUS
	Water activity in Venus's uninhabitable clouds and other planetary atmospheres J. E. Hallsworth, T. Koop, T. D. Dallas, M.-P. Zorzano, J. Burkhardt, O. V. Golyshina, J. Martín-Torres, M. K. Dymond, P. Ball, and C. P. McKay Nature Astron 5, 665-675 (2021)
	An inherited complex organic molecule reservoir in a warm planet-hosting disk A. S. Booth, C. Walsh, J. Terwisscha van Scheltinga, E. F. van Dishoeck, J. D. Ilee, M. R. Hogerheijde, M. Kama, and H. Nomura Nature Astron 5, 684-690 (2021)
	Addendum: Phosphine gas in the cloud decks of Venus J. S. Greaves, A. M. S. Richards, W. Bains, P. B. Rimmer, H. Sagawa, D. L. Clements, S. Seager, J. J. Petkowski, C. Sousa-Silva, S. Ranjan, E. Drabek-Maunder, H. J. Fraser, A. Cartwright, I. Mueller-Wodarg, Z. Zhan, P. Friberg, I. Coulson, E. Lee, and J. Hoge Nature Astron 5, 726-728 (2021)
	The 13CO-rich atmosphere of a young accreting super-Jupiter Y. Zhang, I. A. G. Snellen, A. J. Bohn, P. Mollière, C. Ginski, H. J. Hoeijmakers, M. A. Kenworthy, E. E. Mamajek, T. Meshkat, M. Reggiani, and F. Snik Nature 595, 370-372 (2021)
	Evolution of Ephemeral Phosphate Minerals on Planetary Environments T. Feng, M. Gull, A. Omran, H. Abbott-Lyon, and M. A. Pasek ACS Earth Space Chem 5, 1647-1656 (2021)
	Structural responses of model biomembranes to Mars-relevant salts S. Kriegler, M. Herzog, R. Oliva, S. Gault, C. S. Cockell, and R. Winter Phys Chem Chem Phys 23, 14212-14223 (2021)
	C14H10 polycyclic aromatic hydrocarbon formation by acetylene addition to naphthalenyl radicals observed J. Yang, M. C. Smith, M. B. Prendergast, T.-C. Chu, and W. H. Green Phys Chem Chem Phys 23, 14325-14339 (2021)
	Five vs. six membered-ring PAH products from reaction of o-methylphenyl radical and two C3H4 isomers O. J. Shiels, M. B. Prendergast, J. D. Savee, D. L. Osborn, C. A. Taatjes, S. J. Blanksby, G. da Silva, and A. J. Trevitt Phys Chem Chem Phys 23, 14913-14924 (2021)
	Thermal History of Asteroid Parent Bodies Is Reflected in Their Metalorganic Chemistry M. Matzka, M. Lucio, B. Kanawati, E. Quirico, L. Bonal, S. Loehle, and P. Schmitt-Kopplin ApJL 915, L7 (2021)
	Phase Transition of Interstellar CO Ice J. He, F. E. Toriello, S. M. Emtiaz, T. Henning, and G. Vidali ApJL 915, L23 (2021)
	Collisional Growth and Fragmentation of Dust Aggregates with Low Mass Ratios. I. Critical Collision Velocity for Water Ice Y. Hasegawa, T. K. Suzuki, H. Tanaka, H. Kobayashi, and K. Wada ApJ 915, 22 (2021)
	Probing Microporous ASW with Near-infrared Spectroscopy: Implications for JWST's NIRSpec P. D. Tribbett, S. C. Tegler, and M. J. Loeffler ApJ 915, 40 (2021)
	Laboratory Detection of Cyanoacetic Acid: A Jet-cooled Rotational Study M. Sanz-Novo, I. León, E. R. Alonso, L. Kolesniková, and J. L. Alonso ApJ 915, 76 (2021)
	Atomic Carbon in the Central Molecular Zone of the Milky Way: Possible Cosmic-Ray Induced Chemistry or Time-dependent Chemistry Associated with SNR Sagittarius A East K. Tanaka, M. Nagai, and K. Kamegai ApJ 915, 79 (2021)
	State-to-state Rate Constants for the H + LiH(v0 = 0, j0 = 0) Reaction: An Accurate Nonadiabatic Dynamical Study W. Li, L. Cui, W. Xing, and J. Wang ApJ 915, 104 (2021)
	Depolarization of MgH Solar Lines by Collisions with Hydrogen Atoms S. Qutub, Y. Kalugina, and M. Derouich ApJ 915, 122 (2021)
	Cross Sections for Electron Collisions with H2O M.-Y. Song, H. Cho, G. P. Karwasz, V. Kokoouline, Y. Nakamura, J. Tennyson, A. Faure, N. J. Mason, and Y. Itikawa J Phys Chem Ref Data 50, 023103 (2021)
	Network-Based Design of Near-Infrared Lamb-Dip Experiments and the Determination of Pure Rotational Energies of H218O at kHz Accuracy M. L. Diouf, R. Tóbiás, I. Simkó, F. M. J. Cozijn, E. J. Salumbides, W. Ubachs, and A. G. Császár J Phys Chem Ref Data 50, 023106 (2021)
	Vacuum-Ultraviolet Absorption Spectra of Icy C2H4 at 13-60 K J.-I. Lo, R. Ghosh, H.-C. Lu, W.-H. Hung, and B.-M. Cheng Front Astron Space Sci 8, 700641 (2021)
	Thionitroxyl Radical (H2NS) Isomers: Structures, Vibrational Spectroscopy, Electronic States and Photochemistry M. Jarraya, S. Ben Yaghlane, R. Feifel, R. Linguerri and M. Hochlaf Front Astron Space Sci 8, 641067 (2021)
	Catalytic Role of Refractory Interstellar Grain Analogs on H2 Formation T. Suhasaria and V. Mennella Front Astron Space Sci 8, 655883 (2021)
	The Vertical and Adiabatic Ionization Energies of Silicon Carbide Clusters, (SiC)n, With n = 1-12 D. Gobrecht Front Astron Space Sci 8, 662545 (2021)
	Accuracy and Reliability in the Simulation of Vibrational Spectra: A Comprehensive Benchmark of Energies and Intensities Issuing From Generalized Vibrational Perturbation Theory to Second Order (GVPT2) Q. Yang, M. Mendolicchio, V. Barone, and J. Bloino Front Astron Space Sci 8, 665232 (2021)
	Computational Infrared Spectroscopy of 958 Phosphorus-Bearing Molecules J. C. Zapata Trujillo, A.-M. Syme, K. N. Rowell, B. P. Burns, E. S. Clark, M. N. Gorman, L. S. D. Jacob, P. Kapodistrias, D. J. Kedziora, F. A. R. Lempriere, C. Medcraft, J. O'Sullivan, E. G. Robertson, G. G. Soares, L. Steller, B. L. Teece, C. D. Tremblay, C. Sousa-Silva, and L. K. McKemmish Front Astron Space Sci 8, 639068 (2021)
	Chemical Kinetics Simulations of Ice Chemistry on Porous Versus Non-Porous Dust Grains D. A. Christianson and R. T. Garrod Front Astron Space Sci 8, 643297 (2021)
	Formation of Interstellar Silicate Dust via Nanocluster Aggregation: Insights From Quantum Chemistry Simulations A. Rimola and S. T. Bromley Front Astron Space Sci 8, 659494 (2021)
	Pathways to Detection of Strongly-Bound Inorganic Species: The Vibrational and Rotational Spectral Data of AlH2OH, HMgOH, AlH2NH2, and HMgNH2 A. G. Watrous, M. C. Davis, and R. C. Fortenberry Front Astron Space Sci 8, 643348 (2021)
	Impact of Metals on (Star)Dust Chemistry: A Laboratory Astrophysics Approach R. Bérard, K. Makasheva, K. Demyk, A. Simon, D. Nuñez Reyes, F. Mastrorocco, H. Sabbah, and C. Joblin Front Astron Space Sci 8, 654879 (2021)
	Anharmonic Vibrational Frequencies and Spectroscopic Constants for the Detection of Ethynol in Space J. D. Dallas, B. R. Westbrook and R. C. Fortenberry Front Astron Space Sci 8, 626407 (2021)
	The statistical reliability of 267 GHz JCMT observations of Venus: No significant evidence for phosphine absorption M. A. Thompson MNRAS 501, L18-L22 (2021)

Published in September
	Water production rates from SOHO/SWAN observations of six comets: 2017-2020 M. R. Combi, Y. Shou, T. Mäkinen, J.-L. Bertaux, E. Quémerais, S. Ferron, and R. Coronel Icarus 365, 114509 (2021)

Published in August
	Hydrogenation of small aromatic heterocycles at low temperatures A. M. Miksch, A. Riffelt, R. Oliveira, J. Kästner, and G. Molpeceres MNRAS 505, 3157-3164 (2021)
	HD molecules at high redshift: cosmic ray ionization rate in the diffuse interstellar medium D. N. Kosenko, S. A. Balashev, P. Noterdaeme, J.-K. Krogager, R. Srianand, and C. Ledoux MNRAS 505, 3810-3822 (2021)
	Full spectroscopic model and trihybrid experimental-perturbative-variational line list for CN A.-M. Syme and L. K McKemmish MNRAS 505, 4383-4395 (2021)
	Pseudo-2D modelling of heat redistribution through H2 thermal dissociation/recombination: consequences for ultra-hot Jupiters A. Roth, B. Drummond, E. Hébrard, P. Tremblin, J. Goyal, and N. Mayne MNRAS 505, 4515-4530 (2021)
	Collisional excitation of deuterated hydroxyl (OD) by molecular hydrogen P. J. Dagdigian MNRAS 505, 1987-1991 (2021)
	Rovibrationally resolved direct photodissociation of MgO T. Bai, Z. Qin, and L. Liu MNRAS 505, 2177-2185 (2021)
	The PYRAT BAY framework for exoplanet atmospheric modelling: a population study of Hubble/WFC3 transmission spectra P. E. Cubillos and J. Blecic MNRAS 505, 2675-2702 (2021)
	Water and deuterium-to-hydrogen ratio in comets M. Fulle MNRAS 505, 3107-3112 (2021)
	The reactivity of methanimine radical cation (H2CNH+•) and its isomer aminomethylene (HCNH2+•) with C2H4 D. Sundelin, D. Ascenzi, V. Richardson, C. Alcaraz, M. Polášek, C. Romanzin, R. Thissen, P. Tosi, J. Žabka, and W. Geppert Chem Phys Lett 777, 138677 (2021)
	A radiolytic origin of organic matter in primitive chondrites and trans-neptunian objects? New clues from ion irradiation experiments M. Faure, E. Quirico, A. Faure, P. Boduch, E. Balanzat, D. Baklouti, R. Brunetto, L. Bonal, P. Beck, and B. Schmitt Icarus 464, 114462 (2021)

Published in July
	Dust changes in Sakurai's Object: new PAHs and SiC with coagulation of submicron-sized silicate dust into 10 μm-sized melilite grains J. E. Bowey MNRAS 504, 568-581 (2021)
	Formation of chiral CO polyhedral crystals on icy interstellar grains A. Kouchi, M. Tsuge, T. Hama, H. Niinomi, N. Nakatani, T. Shimonishi, Y. Oba, Y. Kimura, S. Sirono, S. Okuzumi, M. Momose, K. Furuya, and N. Watanabe MNRAS 504, 1530-1542 (2021)
	D/H in the refractory organics of comet 67P/Churyumov-Gerasimenko measured by Rosetta/COSIMA J. A. Paquette, N. Fray, A. Bardyn, C. Engrand, C. M. O'D. Alexander, S. Siljeström, H. Cottin, S. Merouane, R. Isnard, O. J. Stenzel, H. Fischer, J. Rynö, J. Kissel, and M. Hilchenbach MNRAS 504, 4940-4951 (2021)
	The properties of polycyclic aromatic hydrocarbons in galaxies: constraints on PAH sizes, charge and radiation fields D. Rigopoulou, M. Barale, D. C. Clary, X. Shan, A. Alonso-Herrero, I. García-Bernete, L. Hunt, B. Kerkeni, M. Pereira-Santaella, and P. F. Roche MNRAS 504, 5287-5300 (2021)
	Neutral-neutral synthesis of organic molecules in cometary comae M. A. Cordiner and S. B. Charnley MNRAS 504, 5401-5408 (2021)
	Detection of complex organic molecules in young starless core L1521E S. Scibelli, Y. Shirley, A. Vasyunin, and R. Launhardt MNRAS 504, 5754-5767 (2021)
	ExoMol molecular line lists - XLII. Rovibronic molecular line list for the low-lying states of NO Q. Qu, S. N. Yurchenko, and J. Tennyson MNRAS 504, 5768-5777 (2021)
	Impact of surface heterogeneity on IR line profiles of adsorbed carbon monoxide on models of interstellar grain surfaces S. Taj, A. Rosu-Finsen, and M. R. S. McCoustra MNRAS 504, 5806-5812 (2021)
	Observed CN and HCN intensity ratios exhibit subtle variations in extreme galaxy environments B. Ledger, C. D. Wilson, T. Michiyama, D. Iono, S. Aalto, T. Saito, A. Bemis, and R. Aladro MNRAS 504, 5863-5879 (2021)
	The reactivity of methanimine radical cation (H2CNH+) and its isomer aminomethylene (HCNH+ 2) with methane V. Richardson, C. Alcaraz, W. D. Geppert, M. Poláőek, C. Romanzi, D. Sundelin, R. Thissen, P. Tosi, J. Žabka, and D. Ascenzi Chem Phys Lett 775, 138611 (2021)
	Sulfuric acid vapor and sulfur dioxide in the atmosphere of Venus as observed by the Venus Express radio science experiment VeRa J. Oschlisniok, B. Häusler, M. Pätzold, S. Tellmann, M. K. Bird, K. Peter, and T. P. Andert Icarus 362, 114405 (2021)
	Optical constants of Pluto aerosol analogues from UV to near-IR L. Jovanović, T. Gautier, L. Broch, S. Protopapa, T. Bertrand, P. Rannou, M. Fayolle, E. Quirico, L. Johann, A. En Naciri, and N. Carrasco Icarus 362, 114398 (2021)

Published in June
	Accurate High-Level Ab Initio-Based Global Potential Energy Surface and Quantum Dynamics Calculation for the First Excited State of CH+ 2 H. Ma, C. Zhang, Y. Song, F. Ma, and Y. Li J Phys Chem A 125, 5490-5498 (2021)
	Infrared Spectroscopy of Chemically Diverse Carbon Clusters: A Data-Driven Approach F. Calvo, A. Simon, P. Parneix, C. Falvo, and C. Dubosq J Phys Chem A 125, 5509-5518 (2021)
	Synthesis, Purification, and Rotational Spectroscopy of (Cyanomethylene)Cyclopropane-An Isomer of Pyridine B. J. Esselman, S. M. Kougias, M. A. Zdanovskaia, R. C. Woods, and R. J. McMahon J Phys Chem A 125, 5601-5614 (2021)
	Combined experimental and theoretical study on photoionization cross sections of benzonitrile and o/m/p-cyanotoluene J. Huang, C. Huang, X. Wu, Q. Hou, G. Tian, J. Yang, and F. Zhang J Chem Phys 154, 244301 (2021)
	Probable Detection of Water Ice in the Coma of the Inbound Long-period Comet C/2017 K2 (PanSTARRS) T. Kareta, W. M. Harris, and V. Reddy Res Notes AAS 5, 153 (2021)
	Cumulene carbenes in TMC-1: Astronomical discovery of l-H2C5 C. Cabezas, B. Tercero, M. Agúndez, N. Marcelino, J. R. Pardo, P. de Vicente, and J. Cernicharo A&A 650, L9 (2021)
	The sulphur saga in TMC-1: Discovery of HCSCN and HCSCCH J. Cernicharo, C. Cabezas, Y. Endo, M. Agúndez, B. Tercero, J. R. Pardo, N. Marcelino, and P. de Vicente A&A 650, L14 (2021)
	Detection of deuterated methylcyanoacetylene, CH2DC3N, in TMC-1 C. Cabezas, E. Roueff, B. Tercero, M. Agúndez, N. Marcelino, P. de Vicente, and J. Cernicharo A&A 650, L15 (2021)
	The similarity of the interstellar comet 2I/Borisov to Solar System comets from high-resolution optical spectroscopy C. Opitom, E. Jehin, D. Hutsemékers, Y. Shinnaka, J. Manfroid, P. Rousselot, S. Raghuram, H. Kawakita, A. Fitzsimmons, K. Meech, M. Micheli, C. Snodgrass, B. Yang, and O. Hainaut A&A 650, L19 (2021)
	Formation of formaldehyde through methanol-ice-mantle (CH3OH)10 bombardment by OH+ cation N. Inostroza-Pino, D. MacLeod-Carey, C. Heyser, D. Mardones, C. Espinoza, and J. Ge A&A 650, A169 (2021)
	Formation of complex organic molecules in molecular clouds: acetaldehyde, vinyl alcohol, ketene, and ethanol via the "energetic" processing of C2H2 ice K.-J. Chuang, G. Fedoseev, C. Scirè, G. A. Baratta, C. Jäger, T. Henning, H. Linnartz, and M. E. Palumbo A&A 650, A85 (2021)
	The CH radical at radio wavelengths: revisiting emission in the 3.3 GHz ground-state lines A. M. Jacob, K. M. Menten, H. Wiesemeyer, and G. N. Ortiz-León A&A 650, A133 (2021)
	Complex organic molecules in low-mass protostars on Solar System scales - II. Nitrogen-bearing species P. Nazari, M. L. van Gelder, E. F. van Dishoeck, B. Tabone, M. L. R. van't Hoff, N. F. W. Ligterink, H. Beuther, A. C. A. Boogert, A. Caratti o Garatti, P. D. Klaassen, H. Linnartz, V. Taquet, and Ł. Tychoniec A&A 650, A150 (2021)
	Linking ice and gas in the λ Orionis Barnard 35A cloud G. Perotti, J. K. Jørgensen, H. J. Fraser, A. N. Suutarinen, L. E. Kristensen, W. R. M. Rocha, P. Bjerkeli, and K. M. Pontoppidan A&A 650, A168 (2021)
	ALMA observations of doubly deuterated water: inheritance of water from the prestellar environment S. S. Jensen, J. K. Jørgensen, L. E. Kristensen, A. Coutens, E. F. van Dishoeck, K. Furuya, D. Harsono, and M. V. Persson A&A 650, A172 (2021)
	X-ray-induced chemistry of water and related molecules in low-mass protostellar envelopes S. Notsu, E. F. van Dishoeck, C. Walsh, A. D. Bosman, and H. Nomura A&A 650, A180 (2021)
	OH mid-infrared emission as a diagnostic of H2O UV photodissociation - I. Model and application to the HH 211 shock B. Tabone, M. C. van Hemert, E. F. van Dishoeck, and J. H. Black A&A 650, A192 (2021)
	Intermediate-size fullerenes as degradation products of interstellar polycyclic aromatic hydrocarbons A. Omont and H. F. Bettinger A&A 650, A193 (2021)
	Identification of pre-stellar cores in high-mass star forming clumps via H2D+ observations with ALMA E. Redaelli, S. Bovino, A. Giannetti, G. Sabatini, P. Caselli, F. Wyrowski, D. R. G. Schleicher, and D. Colombo A&A 650, A202 (2021)
	Self-preserving ice layers on CO2 clathrate particles: Implications for Enceladus, Pluto, and similar ocean worlds M. Boström, V. Esteso, J. Fiedler, I. Brevik, S. Y. Buhmann, C. Persson, S. Carretero-Palacios, D. F. Parsons, and R. W. Corkery A&A 650, A54 (2021)
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Published in May
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	Origin of ammoniated phyllosilicates on dwarf planet Ceres and asteroids S. K. Singh, A. Bergantini, C. Zhu, M. Ferrari, M. C. De Sanctis, S. De Angelis, and R. I. Kaiser Nature Comm 12, 2690 (2021)
	Gas-phase synthesis of benzene via the propargyl radical self-reaction L. Zhao, W. Lu, M. Ahmed, M. V. Zagidullin, V. N. Azyazov, A. N. Morozov, A. M. Mebel, and R. I. Kaiser Sci Adv 7, eabf0360 *2021(
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	An Aromatic Universe - A Physical Chemistry Perspective R. I. Kaiser and N. Hansen J Phys Chem A 125, 3826-3840 (2021)
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	Direct dynamics in a proton transfer reaction of isomer product competition. Insight into the suppressed formation of the isoformyl cation Y. Wang, S. Zhao, X. Liu, W. Zhen, G. Fu, L. Yang, S. Sun, and J. Zhang Phys Chem Chem Phys 23, 10814-10821 (2021)
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	Using Laboratory Investigations to Aid the Identification of Small Aromatic Molecules in Water-Containing Astrophysical Ices T. L. Salter , J. W. Stubbing , L. Brigham, and W. A. Brown Front Astron Space Sci 8, 644277 (2021)
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	Transient HCl in the atmosphere of Mars O. Korablev, K. S. Olsen, A. Trokhimovskiy, F. Lefèvre, F. Montmessin, A. A. Fedorova, M. J. Toplis, J. Alday, D. A. Belyaev, A. Patrakeev, N. I. Ignatiev, A. V. Shakun, A. V. Grigoriev, L. Baggio, I. Abdenour, G. Lacombe, Y. S. Ivanov, S. Aoki, I. R. Thomas, F. Daerden, B. Ristic, J. T. Erwin, M. Pate, G. Bellucci, J.-J. Lopez-Moreno, and A. C. Vandaele Sci Adv 7, eabe4386 (2021) HCl DETECTED ON MARS
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Published in February 2021
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