Solution phase photolysis of 1,2-dithiane alone and with single-walled carbon nanotubes

Engel P.S.; Gudimetla V.B.; Gancheff J.S.; Denis P.A.

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Solution phase photolysis of 1,2-dithiane alone and with single-walled carbon nanotubes

机译：单独和单壁碳纳米管的1,2-二噻吩溶液相光解

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Photolysis of 1,2-dithiane (1) in acetonitrile with single walled carbon nanotubes (SWCNTs) was earlier reported to form thiol-functionalized SWCNTs via the butane-1,4-dithiyl diradical (2). The present study shows that 2 instead undergoes a facile rearrangement to thiophane-2-thiol (6). This photoreaction is clean, rapid, and irreversible under 313 nm irradiation. The secondary photolysis of 6 with SWCNTs at a shorter wavelength (254 nm) leads to 2-thiophanyl radicals 8, which derivatize SWCNTs by covalent attachment. Pyrolysis of the resulting "sulfurized SWCNTs" affords a mixture of organosulfur compounds, including thiophene formed by dehydrogenation. An unknown additional mechanism causes high TGA weight loss and a large incorporation of sulfur.

机译：较早前有报道称，单壁碳纳米管（SWCNT）在乙腈中对1，2-二硫杂环丁烷（1）进行光解可通过1,4-丁硫基二自由基（2）形成硫醇官能化的SWCNT。目前的研究表明，2却容易地重排为thiophane-2-thiol（6）。在313 nm的辐射下，这种光反应是清洁，快速且不可逆的。 6在较短的波长（254 nm）下用SWCNT进行的二次光解会导致2-thiophanyl自由基8，该自由基通过共价连接使SWCNT衍生化。所得“硫化的SWCNT”的热解提供了有机硫化合物的混合物，包括通过脱氢形成的噻吩。未知的附加机理导致高TGA重量损失和大量硫的结合。

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《The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory》 |2012年第32期|共7页
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Engel P.S.; Gudimetla V.B.; Gancheff J.S.; Denis P.A.;
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1. Solution phase photolysis of 1,2-dithiane alone and with single-walled carbon nanotubes [J] . Engel P.S., Gudimetla V.B., Gancheff J.S., The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory . 2012,第32期

机译：单独和单壁碳纳米管的1,2-二噻吩溶液相光解
2. Solution-phase p-type doping of highly enriched semiconducting single-walled carbon nanotubes for thermoelectric thin films [J] . Noah J. Stanton, Rachelle Ihly, Brenna Norton-Baker, Applied Physics Letters . 2021,第2期

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3. Solution-phase synthesis of chromium-functionalized single-walled carbon nanotubes [J] . Irina Kalinina, Yas Fadel Al-Hadeethi, Elena Bekyarova, Materials Letters . 2015,第mara1期

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4. Transport Properties of Charge Carriers in Single-Walled Carbon Nanotubes by Flash-Photolysis Time-Resolved Microwave Conductivity Technique [C] . Yasuhide Ohno, Kenzo Maehashi, Koichi Inoue, International Conference on the Physics of Semiconductors . 2005

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5. Use of alkali metal salts to prepare high purity single-walled carbon nanotube solutions and thin films. [D] . Ashour, Rakan F. 2014

机译：使用碱金属盐制备高纯度单壁碳纳米管溶液和薄膜。
6. High-performance single-walled carbon nanotube transparent conducting film fabricated by using low feeding rate of ethanol solution [O] . Er-Xiong Ding, Qiang Zhang, Nan Wei, 2018

机译：利用低乙醇溶液进料速度制备高性能单壁碳纳米管透明导电膜
7. Single-Walled Carbon Nanotubes: Solution-Processing of High-Purity Semiconducting Single-Walled Carbon Nanotubes for Electronics Devices (Adv. Mater. 9/2019) [O] . Song Qiu, Kunjie Wu, Bing Gao, 2019

机译：单壁碳纳米管：用于电子设备的高纯度半导体单壁碳纳米管的溶液加工（ADV。Mater。9/2019）

Solution phase photolysis of 1,2-dithiane alone and with single-walled carbon nanotubes

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