Fariia Iasmin Akbar , Alena Aslandukova , Yuqing Yin , Andrey Aslandukov , Dominique Laniel , Elena Bykova , Maxim Bykov , Eleanor Lawrence Bright , Jonathan Wright , Davide Comboni , Michael Hanfland , Natalia Dubrovinskaia , Leonid Dubrovinsky
{"title":"含碳二聚体、三聚体、碳链和碳带的高压镝碳化物","authors":"Fariia Iasmin Akbar , Alena Aslandukova , Yuqing Yin , Andrey Aslandukov , Dominique Laniel , Elena Bykova , Maxim Bykov , Eleanor Lawrence Bright , Jonathan Wright , Davide Comboni , Michael Hanfland , Natalia Dubrovinskaia , Leonid Dubrovinsky","doi":"10.1016/j.carbon.2024.119374","DOIUrl":null,"url":null,"abstract":"<div><p>Exploring the chemistry of materials at high pressure leads to discoveries of previously unknown compounds and phenomena. Here chemical reactions between elemental dysprosium and carbon were studied in laser-heated diamond anvil cells at pressures up to 95 GPa and temperatures of ∼2800 K. <em>In situ</em> single-crystal synchrotron X-ray diffraction (SCXRD) analysis of the reaction products revealed the formation of novel dysprosium carbides, γ-DyC<sub>2</sub>, Dy<sub>5</sub>C<sub>9</sub>, and γ-Dy<sub>4</sub>C<sub>5</sub>, along with previously reported Dy<sub>3</sub>C<sub>2</sub> and Dy<sub>4</sub>C<sub>3</sub>. The crystal structures of γ-DyC<sub>2</sub> and Dy<sub>5</sub>C<sub>9</sub> feature infinite flat carbon polyacene-like ribbons and <em>cis</em>-polyacetylene-type chains, respectively. In the structure of γ-Dy<sub>4</sub>C<sub>5</sub>, carbon atoms form dimers and non-linear trimers. Dy<sub>3</sub>C<sub>2</sub> contains ethanide-type carbon dumbbells, and Dy<sub>4</sub>C<sub>3</sub> is methanide featuring single carbon atoms. Density functional theory calculations reproduce well the crystal structures of high-pressure dysprosium carbides and reveal conjugated <em>π</em>-electron systems in novel infinite carbon polyanions. This work demonstrates that complex carbon homoatomic species previously unknown in organic chemistry can be synthesized at high pressures by direct reactions of carbon with metals.</p></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":null,"pages":null},"PeriodicalIF":10.5000,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0008622324005931/pdfft?md5=0458a7a8326a1a702e22f602373f5dc1&pid=1-s2.0-S0008622324005931-main.pdf","citationCount":"0","resultStr":"{\"title\":\"High-pressure dysprosium carbides containing carbon dimers, trimers, chains, and ribbons\",\"authors\":\"Fariia Iasmin Akbar , Alena Aslandukova , Yuqing Yin , Andrey Aslandukov , Dominique Laniel , Elena Bykova , Maxim Bykov , Eleanor Lawrence Bright , Jonathan Wright , Davide Comboni , Michael Hanfland , Natalia Dubrovinskaia , Leonid Dubrovinsky\",\"doi\":\"10.1016/j.carbon.2024.119374\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Exploring the chemistry of materials at high pressure leads to discoveries of previously unknown compounds and phenomena. Here chemical reactions between elemental dysprosium and carbon were studied in laser-heated diamond anvil cells at pressures up to 95 GPa and temperatures of ∼2800 K. <em>In situ</em> single-crystal synchrotron X-ray diffraction (SCXRD) analysis of the reaction products revealed the formation of novel dysprosium carbides, γ-DyC<sub>2</sub>, Dy<sub>5</sub>C<sub>9</sub>, and γ-Dy<sub>4</sub>C<sub>5</sub>, along with previously reported Dy<sub>3</sub>C<sub>2</sub> and Dy<sub>4</sub>C<sub>3</sub>. The crystal structures of γ-DyC<sub>2</sub> and Dy<sub>5</sub>C<sub>9</sub> feature infinite flat carbon polyacene-like ribbons and <em>cis</em>-polyacetylene-type chains, respectively. In the structure of γ-Dy<sub>4</sub>C<sub>5</sub>, carbon atoms form dimers and non-linear trimers. Dy<sub>3</sub>C<sub>2</sub> contains ethanide-type carbon dumbbells, and Dy<sub>4</sub>C<sub>3</sub> is methanide featuring single carbon atoms. Density functional theory calculations reproduce well the crystal structures of high-pressure dysprosium carbides and reveal conjugated <em>π</em>-electron systems in novel infinite carbon polyanions. This work demonstrates that complex carbon homoatomic species previously unknown in organic chemistry can be synthesized at high pressures by direct reactions of carbon with metals.</p></div>\",\"PeriodicalId\":262,\"journal\":{\"name\":\"Carbon\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":10.5000,\"publicationDate\":\"2024-06-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S0008622324005931/pdfft?md5=0458a7a8326a1a702e22f602373f5dc1&pid=1-s2.0-S0008622324005931-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Carbon\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0008622324005931\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Carbon","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0008622324005931","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
High-pressure dysprosium carbides containing carbon dimers, trimers, chains, and ribbons
Exploring the chemistry of materials at high pressure leads to discoveries of previously unknown compounds and phenomena. Here chemical reactions between elemental dysprosium and carbon were studied in laser-heated diamond anvil cells at pressures up to 95 GPa and temperatures of ∼2800 K. In situ single-crystal synchrotron X-ray diffraction (SCXRD) analysis of the reaction products revealed the formation of novel dysprosium carbides, γ-DyC2, Dy5C9, and γ-Dy4C5, along with previously reported Dy3C2 and Dy4C3. The crystal structures of γ-DyC2 and Dy5C9 feature infinite flat carbon polyacene-like ribbons and cis-polyacetylene-type chains, respectively. In the structure of γ-Dy4C5, carbon atoms form dimers and non-linear trimers. Dy3C2 contains ethanide-type carbon dumbbells, and Dy4C3 is methanide featuring single carbon atoms. Density functional theory calculations reproduce well the crystal structures of high-pressure dysprosium carbides and reveal conjugated π-electron systems in novel infinite carbon polyanions. This work demonstrates that complex carbon homoatomic species previously unknown in organic chemistry can be synthesized at high pressures by direct reactions of carbon with metals.
期刊介绍:
The journal Carbon is an international multidisciplinary forum for communicating scientific advances in the field of carbon materials. It reports new findings related to the formation, structure, properties, behaviors, and technological applications of carbons. Carbons are a broad class of ordered or disordered solid phases composed primarily of elemental carbon, including but not limited to carbon black, carbon fibers and filaments, carbon nanotubes, diamond and diamond-like carbon, fullerenes, glassy carbon, graphite, graphene, graphene-oxide, porous carbons, pyrolytic carbon, and other sp2 and non-sp2 hybridized carbon systems. Carbon is the companion title to the open access journal Carbon Trends. Relevant application areas for carbon materials include biology and medicine, catalysis, electronic, optoelectronic, spintronic, high-frequency, and photonic devices, energy storage and conversion systems, environmental applications and water treatment, smart materials and systems, and structural and thermal applications.