The Role of Acetylene in the Chemical Evolution of Carbon Complexity
arXiv:2405.01866 · doi:10.1021/acsearthspacechem.3c00223
Abstract
Acetylene, among the multitude of organic molecules discovered in space, plays a distinct role in the genesis of organic matter. Characterized by its unique balance of stability and reactivity, acetylene is the simplest unsaturated organic molecule known to have a triple bond. In addition to its inherent chemical properties, acetylene is one of the most prevalent organic molecules found across the Universe, spanning from the icy surfaces of planets and satellites and the cold interstellar medium with low temperatures to hot circumstellar envelopes where temperatures surge to several thousand kelvins. These factors collectively position acetylene as a crucial building block in the molecular diversification of organic molecules and solids present in space. This review comprehensively discusses the formation and expansion of carbon skeletons involving acetylene, ranging from the formation of simple molecules to the origination of the first aromatic ring and ultimately to the formation of nanosized carbon particles. Mechanisms pertinent to both hot environments, such as circumstellar envelopes, and cold environments, including molecular clouds and planetary atmospheres, are explored. In addition, this review contemplates the role of acetylene in the synthesis of prebiotic molecules. A distinct focus is accorded to the recent advancements and future prospects of research into catalytic processes involving acetylene molecules, which is a significant instrument in driving the evolution of carbon complexity in the Universe. The insights garnered from this review underline the significance of acetylene in astrochemistry and potentially contribute to our understanding of the chemical evolution of the Universe.
Review paper. Accepted in ACS Earth and Space Chemistry
References in corpus (36)
- Complex Chemistry in Star-Forming Regions: An Expanded Gas-Grain Warm-up Chemical Model
- Detection of Two Interstellar Polycyclic Aromatic Hydrocarbons via Spectral Matched Filtering
- Photochemistry and astrochemistry: photochemical pathways to interstellar complex organic molecules
- The evolution of amorphous hydrocarbons in the ISM: dust modelling from a new vantage point
- Extraterrestrial nucleobases in the Murchison meteorite
- Simulation of the Formation and Morphology of Ice Mantles on Interstellar Grains
- Binding energies: new values and impact on the efficiency of chemical desorption
- Formation of fullerenes in H-containing Planetary Nebulae
- Hydrocarbon emission rings in protoplanetary disks induced by dust evolution
- Models of turbulent dissipation regions in the diffuse interstellar medium
- Formation of Complex Organic Molecules in Cold Interstellar Environments through non-diffusive grain-surface and ice-mantle chemistry
- ExoMol molecular line lists -- XXXVII: spectra of acetylene
- The chemistry and spatial distribution of small hydrocarbons in UV-irradiated molecular clouds: the Orion Bar PDR
- A Detailed Analysis of the Dust Formation Zone of IRC+10216 Derived from Mid-IR Bands of C2H2 and HCN
- Formation of simple organic molecules in inner T Tauri disks
- Dust Ablation on the Giant Planets: Consequences for Stratospheric Photochemistry
- Spitzer observations of acetylene bands in carbon-rich AGB stars in the Large Magellanic Cloud
- Complex Organic Molecules Towards Embedded Low-Mass Protostars
- The Spitzer-IRS spectrum of SMP LMC 11
- The ESO Diffuse Interstellar Bands Large Exploration Survey: EDIBLES I. Project description, survey sample and quality assessment
- MARVEL analysis of the measured high-resolution rovibrational spectra of C2H2
- Laboratory spectra of hot molecules: data needs for hot super-Earth exoplanets
- The diverse chemistry of protoplanetary disks as revealed by JWST
- The chemistry of cosmic dust analogues from C, C, and CH in C-rich circumstellar envelopes
- Self-consistent modelling of aromatic dust species and extinction curves in galaxy evolution
- Oxygen atom reactions with C2H6, C2H4, and C2H2 in ices
- Polyacenes and diffuse interstellar bands
- Surface Diffusion of Carbon Atoms as a Driver of Interstellar Organic Chemistry
- Detection of Acetylene toward Cepheus A East with Spitzer
- A new study of the chemical structure of the Horsehead nebula: the influence of grain-surface chemistry
- Shiva: the dust destruction model
- Photoreactivity of condensed acetylene on Titan aerosols analogues
- Impact of PAH photodissociation on the formation of small hydrocarbons in the Orion Bar and the Horsehead PDRs
- Jupiter in the ultraviolet: acetylene and ethane abundances in the stratosphere of Jupiter from Cassini observations between 0.15 and 0.19 m
- Experimental Characterization of the Pyridine:Acetylene Co-crystal and Implications for Titan's Surface
- Near-Infrared Diffuse Interstellar Bands towards Her 36