一硫化二碳

一硫化二碳
识别
CAS号	109545-32-6
PubChem	101170561
ChemSpider	10800798
SMILES	[C+]#C[S-];
InChI	1S/C2S/c1-2-3;
InChIKey	NELREAXCVQVNGC-UHFFFAOYSA-N
性质
化学式	C2S
摩尔质量	56.09 g·mol−1
	若非注明，所有数据均出自标准状态（25 ℃，100 kPa）下。

一硫化二碳是一种无机化合物，一种活泼的杂累积多稀分子，其化学式为CCS。^[1]它存在于星际间，亦可人工制备。

简介[编辑]

大量一硫化二碳在太空中存在。^[1]在金牛座分子云的数处核心，包括TMC-1、TMC-1c和L1521B（相信皆为新形成、没有恒星的分子云）可探测到该分子。^[2]

性质[编辑]

此分子的若干吸收线在其紫外线光谱中2800 Å至3370 Å之间，及近红外线光谱中7500 Å及10000 Å之间；另外在固态氩中探测红外线光谱可见v₁及v₂振动线分别在1666.6 cm⁻¹及862.7 cm⁻¹，2v₁泛频线在3311.1 cm⁻¹，弯曲振动线则在2763.4 cm⁻¹。^[1]而在微波光谱中，4₃ − 3₂的发射线在45.4 GHz，2₁ - 1₀在22.3 GHz，这是于太空探测该分子的常用数据。^[2]

理论推断其C-C键长为1.304 Å，C-S键长为1.550 Å。^[3]

一硫化二碳可与一硫化三碳（CCCS）反应形成一硫化五碳（C₅S）。^[1]另外，此分子也可作配体，当中的碳原子与Mo₂(μ,σ(C):η²(C′S)-CCS)(CO)₄[HB(3,5-Me₂Pz)₃]₂中的两个钼原子分别形成一个三键和一个双键，形成双键的钼原子另与硫原子形成单键。^[4]

制备[编辑]

此分子可在固态氩中以紫外线照射SCCCS或OCCCS凝结而成；或于二硫化碳和氦的混合物制造辉光放电（英语：Glow discharge）而成；或以电子束辐照含硫杂环化合物而成。^[1]另外一硫化二碳及其阴离子（CCS⁻）亦可在氖的固体基质中形成。^[5]

参考[编辑]

^ ^1.0 ^1.1 ^1.2 ^1.3 ^1.4 Maier, Günther; Reisenauer, Hans Peter; Ruppel, Raimund. Thioxoethenylidene C2S: A Matrix-Spectroscopic Study. European Journal of Organic Chemistry. 2004-10, 2004 (20): 4197–4202. doi:10.1002/ejoc.200400252.
^ ^2.0 ^2.1 Roy, Nirupam; Datta, Abhirup; Momjian, Emmanuel; Sarma, Anuj P. Imaging of the CCS 22.3 GHz emission in the Taurus Molecular Cloud complex. The Astrophysical Journal. 2011-09-20, 739 (1): L4. Bibcode:2011ApJ...739L...4R. arXiv:1106.4011 . doi:10.1088/2041-8205/739/1/L4.
^ Xie, Yaoming; Schaefer, Henry F. Naked organosulfur clusters: The infrared spectrum of the C2S molecule. The Journal of Chemical Physics. 1992-03, 96 (5): 3714–3717. Bibcode:1992JChPh..96.3714X. doi:10.1063/1.461874.
^ Caldwell, Lorraine M.; Hill, Anthony F.; Stranger, Robert; Terrett, Richard N. L.; von Nessi, Kassetra M.; Ward, Jas S.; Willis, Anthony C. Thioxoethenylidene (CCS) as a Bridging Ligand. Organometallics. 2015-01-12, 34 (1): 328–334. doi:10.1021/om5011319. hdl:1885/13701.
^ Riaplov, Evgueni; Wyss, Muriel; Maier, John P; Panten, Dietmar; Chambaud, Gilberte; Rosmus, Pavel; Fabian, Juergen. Electronic absorption spectra of CCS− and CCS in neon matrices. Journal of Molecular Spectroscopy. 2003-11, 222 (1): 15–21. Bibcode:2003JMoSp.222...15R. doi:10.1016/S0022-2852(02)00050-4.

[maier-1] 1.0 ^1.1 ^1.2 ^1.3 ^1.4 Maier, Günther; Reisenauer, Hans Peter; Ruppel, Raimund. Thioxoethenylidene C2S: A Matrix-Spectroscopic Study. European Journal of Organic Chemistry. 2004-10, 2004 (20): 4197–4202. doi:10.1002/ejoc.200400252.

[roy-2] 2.0 ^2.1 Roy, Nirupam; Datta, Abhirup; Momjian, Emmanuel; Sarma, Anuj P. Imaging of the CCS 22.3 GHz emission in the Taurus Molecular Cloud complex. The Astrophysical Journal. 2011-09-20, 739 (1): L4. Bibcode:2011ApJ...739L...4R. arXiv:1106.4011 . doi:10.1088/2041-8205/739/1/L4.

[3] Xie, Yaoming; Schaefer, Henry F. Naked organosulfur clusters: The infrared spectrum of the C2S molecule. The Journal of Chemical Physics. 1992-03, 96 (5): 3714–3717. Bibcode:1992JChPh..96.3714X. doi:10.1063/1.461874.

[4] Caldwell, Lorraine M.; Hill, Anthony F.; Stranger, Robert; Terrett, Richard N. L.; von Nessi, Kassetra M.; Ward, Jas S.; Willis, Anthony C. Thioxoethenylidene (CCS) as a Bridging Ligand. Organometallics. 2015-01-12, 34 (1): 328–334. doi:10.1021/om5011319. hdl:1885/13701.

[5] Riaplov, Evgueni; Wyss, Muriel; Maier, John P; Panten, Dietmar; Chambaud, Gilberte; Rosmus, Pavel; Fabian, Juergen. Electronic absorption spectra of CCS− and CCS in neon matrices. Journal of Molecular Spectroscopy. 2003-11, 222 (1): 15–21. Bibcode:2003JMoSp.222...15R. doi:10.1016/S0022-2852(02)00050-4.

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