Angela Graness, Ernst Heumann, Juergen Kleinschmidt, Wolfgang Triebel, Dieter Klemm, Elisabeth Klemm
{"title":"对解释正硝基苯基芳烃彩色形态的弛豫过程和光化学形成的贡献","authors":"Angela Graness, Ernst Heumann, Juergen Kleinschmidt, Wolfgang Triebel, Dieter Klemm, Elisabeth Klemm","doi":"10.1016/0378-4487(82)80037-X","DOIUrl":null,"url":null,"abstract":"<div><p>Photoreactions of 2-(2′, 4′-dinitrobenzyl)-pyridine (<span><math><mtext>1</mtext></math></span>) and 2, 2′, 4, 4′-tetranitrodiphenylmethane (<span><math><mtext>2</mtext></math></span>) were investigated by means of ps-probe beam spectroscopy. It could be shown, that the electronic ground states of aci-nitro-forms and polymethine forms of flashed compounds were populated after 50 ps (compound <span><math><mtext>1</mtext></math></span>) and 30 ps (compound <span><math><mtext>2</mtext></math></span>) direct from excited states of compounds <span><math><mtext>1</mtext></math></span> and <span><math><mtext>2</mtext></math></span>. A possible reaction scheme will be given.</p></div>","PeriodicalId":100049,"journal":{"name":"Advances in Molecular Relaxation and Interaction Processes","volume":"22 2","pages":"Pages 89-97"},"PeriodicalIF":0.0000,"publicationDate":"1982-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0378-4487(82)80037-X","citationCount":"1","resultStr":"{\"title\":\"Contributions to the explanation of relaxation processes and photochemical formation of the coloured forms of orthonitrobenzylarenes\",\"authors\":\"Angela Graness, Ernst Heumann, Juergen Kleinschmidt, Wolfgang Triebel, Dieter Klemm, Elisabeth Klemm\",\"doi\":\"10.1016/0378-4487(82)80037-X\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Photoreactions of 2-(2′, 4′-dinitrobenzyl)-pyridine (<span><math><mtext>1</mtext></math></span>) and 2, 2′, 4, 4′-tetranitrodiphenylmethane (<span><math><mtext>2</mtext></math></span>) were investigated by means of ps-probe beam spectroscopy. It could be shown, that the electronic ground states of aci-nitro-forms and polymethine forms of flashed compounds were populated after 50 ps (compound <span><math><mtext>1</mtext></math></span>) and 30 ps (compound <span><math><mtext>2</mtext></math></span>) direct from excited states of compounds <span><math><mtext>1</mtext></math></span> and <span><math><mtext>2</mtext></math></span>. A possible reaction scheme will be given.</p></div>\",\"PeriodicalId\":100049,\"journal\":{\"name\":\"Advances in Molecular Relaxation and Interaction Processes\",\"volume\":\"22 2\",\"pages\":\"Pages 89-97\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1982-02-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0378-4487(82)80037-X\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Advances in Molecular Relaxation and Interaction Processes\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/037844878280037X\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advances in Molecular Relaxation and Interaction Processes","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/037844878280037X","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Contributions to the explanation of relaxation processes and photochemical formation of the coloured forms of orthonitrobenzylarenes
Photoreactions of 2-(2′, 4′-dinitrobenzyl)-pyridine () and 2, 2′, 4, 4′-tetranitrodiphenylmethane () were investigated by means of ps-probe beam spectroscopy. It could be shown, that the electronic ground states of aci-nitro-forms and polymethine forms of flashed compounds were populated after 50 ps (compound ) and 30 ps (compound ) direct from excited states of compounds and . A possible reaction scheme will be given.