Molecular Structure and Magnetic Parameters of Septet 2,4,6-Trinitrenotoluene
摘要:
Septet 2,4,6-trinitrenotoluene is the major paramagnetic product formed during the photolysis of 2,4,6-triazidotoluene in cryogenic matrices. This trinitrene displays different electron paramagnetic resonance (EPR) spectra in solid argon and in 2-methyltetrahydrofuran (2MTHF) glass, corresponding to septet spin states with the zero-field splitting (ZFS) parameters D(S) = -0.0938 cm(-1), E(S) = -0.0040 cm(-1) and D(S) = -0.0934 cm(-1), E(S) = -0.0015 cm(-1), respectively. Analysis of these parameters shows that the molecular and electronic structure of the septet trinitrene derived from the EPR spectrum in argon is in good agreement with the expectations from DFT calculations. The very small parameter E(S) In 2MTHF glass is explained by significant changes of the spin densities on the three nitrene units due to interactions of the nitrogen atom with surrounding 2MTHF molecules.
Molecular Structure and Magnetic Parameters of Septet 2,4,6-Trinitrenotoluene
摘要:
Septet 2,4,6-trinitrenotoluene is the major paramagnetic product formed during the photolysis of 2,4,6-triazidotoluene in cryogenic matrices. This trinitrene displays different electron paramagnetic resonance (EPR) spectra in solid argon and in 2-methyltetrahydrofuran (2MTHF) glass, corresponding to septet spin states with the zero-field splitting (ZFS) parameters D(S) = -0.0938 cm(-1), E(S) = -0.0040 cm(-1) and D(S) = -0.0934 cm(-1), E(S) = -0.0015 cm(-1), respectively. Analysis of these parameters shows that the molecular and electronic structure of the septet trinitrene derived from the EPR spectrum in argon is in good agreement with the expectations from DFT calculations. The very small parameter E(S) In 2MTHF glass is explained by significant changes of the spin densities on the three nitrene units due to interactions of the nitrogen atom with surrounding 2MTHF molecules.
[EN] ANION RECEPTOR, AND ELECTROLYTE USING THE SAME<br/>[FR] RÉCEPTEUR D'ANIONS ET ÉLECTROLYTE UTILISANT CE RÉCEPTEUR
申请人:KYUNGWON ENTPR CO LTD
公开号:WO2007126262A1
公开(公告)日:2007-11-08
[EN] Disclosed is a novel anion receptor and electrolytes containing the same. A novel anion receptor is an aromatic hydrocarbon compound having an amine substituted with electron withdrawing groups. When the anion receptor is added to the electrolyte, ionic conductivity and cation transference number of electrolytes are enhanced, thereby increasing the electrochemical stability of alkali metal batteries using the electrolytes. [FR] L'invention concerne un nouveau récepteur d'anions et des électrolytes le contenant. Ce nouveau récepteur d'anions est un composé d'hydrocarbure aromatique ayant un amine substitué par des groupes électroattracteurs. Lorsque le récepteur d'anions est ajouté à l'électrolyte, cela améliore la conductivité ionique et le nombre de transport cationique des électrolytes, ce qui accroît la stabilité électrochimique des batteries de métal alcalin utilisant les électrolytes.
Molecular Structure and Magnetic Parameters of Septet 2,4,6-Trinitrenotoluene
作者:Sergei V. Chapyshev、Eugenii Ya. Misochko、Alexander V. Akimov、Viktor G. Dorokhov、Patrik Neuhaus、Dirk Grote、Wolfram Sander
DOI:10.1021/jo9010848
日期:2009.10.2
Septet 2,4,6-trinitrenotoluene is the major paramagnetic product formed during the photolysis of 2,4,6-triazidotoluene in cryogenic matrices. This trinitrene displays different electron paramagnetic resonance (EPR) spectra in solid argon and in 2-methyltetrahydrofuran (2MTHF) glass, corresponding to septet spin states with the zero-field splitting (ZFS) parameters D(S) = -0.0938 cm(-1), E(S) = -0.0040 cm(-1) and D(S) = -0.0934 cm(-1), E(S) = -0.0015 cm(-1), respectively. Analysis of these parameters shows that the molecular and electronic structure of the septet trinitrene derived from the EPR spectrum in argon is in good agreement with the expectations from DFT calculations. The very small parameter E(S) In 2MTHF glass is explained by significant changes of the spin densities on the three nitrene units due to interactions of the nitrogen atom with surrounding 2MTHF molecules.