Diamagnetik yapılar içine katkılanan paramagnetik örneklerin ESR parametrelerinin ölçülmesi

Abstract

Bu calismada 60Co- isinlarina tutulan Tetramethylthiuram Disulfide, 2-[(2-Iodophenyl) iminomethyl] phenol , 2-4fenazon, 2-{(Z)-[furan-2-ylmethyl] imino]methyl}-6-methoxyphenol, Ethan-1,2-disulfonsaure Dinatrium salz Dihydrate tek kristallerinin ESR spektrumlari alinmistir. Bu organik maddelerin kimyasal ozellikleri goz onune alinarak yapilan calismalarda, Tetramethylthiuram Disulfide tek kristallerinde 60Co- radyasyonunun olusturdugu manyetik merkezin radikali oldugu tespit edilmistir. Asiri ince yapi sabitleri, , olarak bulunmustur. 2-[(2- Iodophenyl)iminomethyl]phenol icin spektroskopik yarilma faktoru g= 2,0036 olarak hesaplanmistir. 2,4 Fenazon spektroskopik yarilma sabitleri , ve asiri ince yapi etkilesme sabiti a=5G olarak bulunmustur. 2-{(Z)-[furan-2-ylmethyl]imino]methyl}-6-methoxyphenol icin , olarak hesaplanmistir. Ethan-2,4-disulfonsaure Dinatrium salz Dihydrate kristalinde radikalin radikali oldugu tespit edilmistir. Asiri ince yapi sabitleri , olarak bulunmustur.Abstract In this study, EPR spectrum of single crystals of Tetramethylthiuram Disulfide, 2-[(2-Iodophenyl ) iminomethyl] phenol, 2-4 fenazon, 2-{(Z)-[ furan–2–ylmethyl ] imino ] methyl}-6-methoxyphenol, Ethan-1,2-disulfonsaure Dinatrium salz Dihydrate. ESR parameters of the radicals were determined. Radicals formed by 60Co- radiation in these organic materials were investigated by considering their chemical properties. In the first compound, Tetramethylthiuram Disulfide radical was observed. The hyperfine coupling constants , were measured for radical. The spectroscopic splitting factor was found to be g=2,0036 for 2-[(2- Iodophenyl)iminomethyl] phenol. The spectroscopic splitting factors and hyperfine coupling parameters were measured to be , , a=5G for 2-4 Fenazon. The spectroscopic splitting factors were found as , for 2-{(Z)-[furan-2-ylmethyl] imino] methyl}-6-methoxyphenol. Ethan-2,4-disulfonsaure Dinatrium salz Dihydrate radical was found. The hyperfine coupling values were found as , for .