===== On the Discovery of c-C6H6S in the ISM =====

M. Araki, M. Sanz-Novo, C. P. Endres, P. Caselli, V. M. Rivilla, I. Jiménez-Serra, L. Colzi, S. Zeng, A. Megías, Á. López-Gallifa, A.Martínez-Henares, D. San Andrés, S. Martín, M. A. Requena-Torres, J. G. de la Concepción, and V. Lattanzi\\
reported on\\
**[[https://doi.org/10.1038/s41550-025-02749-7|A Detection of Sulfur-Bearing Cyclic Hydrocarbons in Space]]**\\
//Nat. Astron.// **10**, 401 (2026).\\
2,5-Cyclohexadienthione was detected in the course of a molecular line survey of the Galactic Center molecular cloud G+0.693–0.027 employing the Yebes 40 m telecope. The //a//-type transitions cover 31 to 49 GHz with 10 ≤ //J// ≤ 19 and //K<sub>a</sub>// ≤ 7. Some lines are unblended, slightly blended, or the peak of the line is at most slightly blended. //T//<sub>rot</sub> ≈ 12.5 K was derived from a rotation diagram. 2,4-Cyclohexadienthione was not detected, its abundance is at least a factor of 2 lower than 2,5-cyclohexadienthione.\\
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Contributor(s): H. S. P. Müller; 04, 2026

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