硫代甲醛
化合物
硫代甲醛(英語:Thioformaldehyde)是一種有機硫化合物,化學式為CH
2S。
硫代甲醛 | |||
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| |||
別名 | Methanethial | ||
識別 | |||
CAS號 | 865-36-1 | ||
PubChem | 79115 | ||
ChemSpider | 71446 | ||
SMILES |
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InChI |
| ||
InChIKey | DBTDEFJAFBUGPP-UHFFFAOYSA-N | ||
EINECS | 200-454-1 | ||
性質 | |||
化學式 | CH 2S | ||
摩爾質量 | 46.09 g·mol⁻¹ | ||
外觀 | 未知 | ||
若非註明,所有數據均出自標準狀態(25 ℃,100 kPa)下。 |
簡介
硫代甲醛的結構式首次由意大利化學家西爾維奧·貝茲(Silvio Bezzi)確認。[1]一個人工製備的方法是在10 K溫度的氬基質中對三硫代碳酸甲酯C
2H
2S
3進行光分解作用。[2]
此化合物在日常環境中並不穩定,極易形成其低聚物,即具有相同實驗式的1,3,5-三硫雜環己烷,因此十分罕見。然而在星際物質中則能觀察到其存在,[3]鼓勵了對其性質的研究。[4]藉紅外光譜儀可得知其存在於緻密高速雲CO-0.40-0.22等星際雲,[5]以及海爾-博普彗星之彗髮。[6][7]
由於雙鍵原理,硫代甲醛傾向形成鏈狀或環狀結構。已知其存在於數種配位化合物中,包括以下的Os(SCH
2)(CO)
2(PPh
3)
2。[8]
參考
- ^ Croatto, Ugo. Treccani , 編. BEZZI, Silvio. Dizionario Biografico degli Italiani. 1967, 9 [2017-09-16]. (原始內容存檔於2017-09-18).
- ^ Torres, M.; Safarik, I.; Clement, A.; Strausz, O. P. The generation and vibrational spectrum of matrix isolated thioformaldehyde and dideuterothioformaldehyde (pdf). Canadian Journal of Chemistry. 1982, 60 (10): 1187–1191 [2017-09-17]. doi:10.1139/v82-176.
- ^ Despois, D., "Radio Line Observations of Molecular and Isotopic Species in Comet C/1995 O1 (Hale-Bopp) Implications on the Interstellar Origin of Cometary Ices", Earth, Moon, Planets 1999, 79, 103-124.
- ^ Clouthier, D. J.; Ramsay, D. A. The Spectroscopy of Formaldehyde and Thioformaldehyde. Annual Review of Physical Chemistry. 1983, 34: 31–58. Bibcode:1983ARPC...34...31C. doi:10.1146/annurev.pc.34.100183.000335.
- ^ Oka, Tomoharu; Mizuno, Reiko; Miura, Kodai; Takekawa, Shunya. The American Astronomical Society , 編. Signature of an Intermediate-Mass Black Hole in the Central Zone of our Galaxy. The Astrophysical Journal Letters. 2015-12-28, 816 (1): L7 [2017-09-14]. Bibcode:2016ApJ...816L...7O. arXiv:1512.04661 . doi:10.3847/2041-8205/816/1/L7. (原始內容存檔於2017-09-12).
- ^ Woodney, L. M.; A'Hearn, M. F.; McMullin, J.; Samarasinha, N. Sulfur Chemistry at Millimeter Wavelengths in C/Hale-Bopp. Earth, Moon, and Planets. 1997-07, 78 (1-3): 69—70 [2017-09-16]. (原始內容存檔於2017-09-18).
- ^ Despois, D. radio Line Observations of Molecular and Isotopic Species in Comet C/1995 O1 (Hale-Bopp) Implications on the Interstellar Origin of Cometary Ices. Earth, Moon, and Planets. 1997-09, 79 (1-3): 103–124 [2017-09-16]. (原始內容存檔於2017-09-18).
- ^ Schenk, Wolfdieter A. The coordination chemistry of small sulfur-containing molecules: A personal perspective. Dalton Trans. 2011, 40 (6): 1209–1219. PMID 21088787. doi:10.1039/C0DT00975J.