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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

大量一硫化二碳在太空中存在。[1]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

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

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

  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. 
  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可免费查阅. 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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