{"title":"Refrachor (F)--七十年前的工具和当代观察：估算四氮唑和 1,2,3 三氮唑的 1H 和 2H 同分异构体的平衡成分，以及乙酰二胺-乙烯基胺同分异构体的亚胺成分","authors":"Sanjeev Rachuru, Jagannadham Vandanapu","doi":"10.1515/znb-2024-0031","DOIUrl":null,"url":null,"abstract":"Refrachor with a symbol <jats:italic>F</jats:italic> a new physical constant proposed for the first time in 1951 by Joshi and Tuli defined by the equation <jats:italic>F</jats:italic> = –<jats:italic>P</jats:italic> log(<jats:inline-formula> <jats:alternatives> <m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\" overflow=\"scroll\"> <m:mrow> <m:msubsup> <m:mi>n</m:mi> <m:mi mathvariant=\"normal\">D</m:mi> <m:mn>20</m:mn> </m:msubsup> </m:mrow> </m:math> <jats:tex-math>${n}_{\\mathrm{D}}^{20}$</jats:tex-math> <jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"graphic/j_znb-2024-0031_ineq_001.png\"/> </jats:alternatives> </jats:inline-formula>–1) where <jats:italic>P</jats:italic> is the parachor and <jats:inline-formula> <jats:alternatives> <m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\" overflow=\"scroll\"> <m:mrow> <m:msubsup> <m:mi>n</m:mi> <m:mi mathvariant=\"normal\">D</m:mi> <m:mn>20</m:mn> </m:msubsup> </m:mrow> </m:math> <jats:tex-math>${n}_{\\mathrm{D}}^{20}$</jats:tex-math> <jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"graphic/j_znb-2024-0031_ineq_002.png\"/> </jats:alternatives> </jats:inline-formula> is the refractive index, is now used in our present work to calculate the percentage composition of 1<jats:italic>H</jats:italic>- and 2<jats:italic>H</jats:italic>-tautomers of tetrazole, 1,2,3-triazole, and imine-enamine tautomerism of acetaldimine in their equilibrium mixtures.","PeriodicalId":23831,"journal":{"name":"Zeitschrift für Naturforschung B","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Refrachor (F) – seventy-year-old tool and a contemporary observation: estimation of equilibrium compositions of 1H- and 2H-tautomers of tetrazole and 1,2,3-triazole and imine–amine composition of acetaldimine–vinylamine tautomerism\",\"authors\":\"Sanjeev Rachuru, Jagannadham Vandanapu\",\"doi\":\"10.1515/znb-2024-0031\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Refrachor with a symbol <jats:italic>F</jats:italic> a new physical constant proposed for the first time in 1951 by Joshi and Tuli defined by the equation <jats:italic>F</jats:italic> = –<jats:italic>P</jats:italic> log(<jats:inline-formula> <jats:alternatives> <m:math xmlns:m=\\\"http://www.w3.org/1998/Math/MathML\\\" overflow=\\\"scroll\\\"> <m:mrow> <m:msubsup> <m:mi>n</m:mi> <m:mi mathvariant=\\\"normal\\\">D</m:mi> <m:mn>20</m:mn> </m:msubsup> </m:mrow> </m:math> <jats:tex-math>${n}_{\\\\mathrm{D}}^{20}$</jats:tex-math> <jats:inline-graphic xmlns:xlink=\\\"http://www.w3.org/1999/xlink\\\" xlink:href=\\\"graphic/j_znb-2024-0031_ineq_001.png\\\"/> </jats:alternatives> </jats:inline-formula>–1) where <jats:italic>P</jats:italic> is the parachor and <jats:inline-formula> <jats:alternatives> <m:math xmlns:m=\\\"http://www.w3.org/1998/Math/MathML\\\" overflow=\\\"scroll\\\"> <m:mrow> <m:msubsup> <m:mi>n</m:mi> <m:mi mathvariant=\\\"normal\\\">D</m:mi> <m:mn>20</m:mn> </m:msubsup> </m:mrow> </m:math> <jats:tex-math>${n}_{\\\\mathrm{D}}^{20}$</jats:tex-math> <jats:inline-graphic xmlns:xlink=\\\"http://www.w3.org/1999/xlink\\\" xlink:href=\\\"graphic/j_znb-2024-0031_ineq_002.png\\\"/> </jats:alternatives> </jats:inline-formula> is the refractive index, is now used in our present work to calculate the percentage composition of 1<jats:italic>H</jats:italic>- and 2<jats:italic>H</jats:italic>-tautomers of tetrazole, 1,2,3-triazole, and imine-enamine tautomerism of acetaldimine in their equilibrium mixtures.\",\"PeriodicalId\":23831,\"journal\":{\"name\":\"Zeitschrift für Naturforschung B\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-09-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Zeitschrift für Naturforschung B\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1515/znb-2024-0031\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Zeitschrift für Naturforschung B","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1515/znb-2024-0031","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
F = -P log( n D 20 ${n}_{\mathrm{D}}^{20}$ -1) 式中，P 为抛物线，n D 20 ${n}_{\mathrm{D}}^{20}$ 为折射率、在我们现在的工作中，我们用它来计算四氮唑、1,2,3-三氮唑的 1H 和 2H 同分异构体以及乙酰二胺的亚胺-烯胺同分异构体在它们的平衡混合物中的百分比组成。
Refrachor (F) – seventy-year-old tool and a contemporary observation: estimation of equilibrium compositions of 1H- and 2H-tautomers of tetrazole and 1,2,3-triazole and imine–amine composition of acetaldimine–vinylamine tautomerism
Refrachor with a symbol F a new physical constant proposed for the first time in 1951 by Joshi and Tuli defined by the equation F = –P log(nD20${n}_{\mathrm{D}}^{20}$–1) where P is the parachor and nD20${n}_{\mathrm{D}}^{20}$ is the refractive index, is now used in our present work to calculate the percentage composition of 1H- and 2H-tautomers of tetrazole, 1,2,3-triazole, and imine-enamine tautomerism of acetaldimine in their equilibrium mixtures.
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