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- W2493114848 abstract "Iron(II) complexes with triazole(L) ligand with chemical formula of [FeL3]A2, A=counter ion, are interesting compounds in which they have two possible magneticbehavior that can be changed by temperature, therefore they have potentialapplication as sensor materials. At certain temperature they showed diamagneticbehavior and changed to paramagnetic when heated. The change of the magneticproperties normally accompanied by the change of distinc colour. In this research,the 1,2,4 triazole (H-trz) and 4-Amino-4H-1,2,4 triazole (NH2-trz) have been reactedwith iron(II) nitrat and chloride salts inside the nata de coco. The formation of thecomplexes were indicated by violet color in the biopolymer thin film. The amount ofcomplexes in nata de coco is around 1 to 7 mg/cm2 which is measured indirectly from magnetic suseptibility data of the complexes in the powder form. The [Fe(Htrz)]3Cl2,[Fe(NH2trz)]3Cl2, [Fe(Htrz)]3(NO3)2, [Fe(NH2trz)]3(NO3)2 complexes are diamagnetic with magnetic moments μeff between 0,97 – 1,33 BM. The color indexes of eachcomplexes were indicated by primer color percentages (Red, Green, Blue) as follows (68,46,37), (48, 37, 21), (51, 35, 19) dan (27,21,11) at room temperature. From allcomplexes, only the [Fe(NH2trz)]3(NO3)2 complex showed color changing from violet with %R = 65±3, %G = 44±2, %B = 33±3 at 30oC became colorless with %R = 69±3, %G = 59±1, %B = 38±2 at 95oC, The distinc color changing was indicated bythe increased of green index of 15%. The color changing of the complexes atvariable temperatures has been recorded by a video recorder. The program Xilisoft Video Converter Ultimate 6 has been used to convert the video to photos andprogram Image J Server has been used to obtained the RGB indexes.Key words : [FeL3]A2 complexes, Nata de coco, RGB, Thermochromic, Color Index" @default.
- W2493114848 created "2016-08-23" @default.
- W2493114848 creator A5040185313 @default.
- W2493114848 date "2012-07-14" @default.
- W2493114848 modified "2023-09-27" @default.
- W2493114848 title "Study of Triazole Iron(II) Complexes, with Nitrate and Chloride Counter Anions inside the Nata de coco Biopolymer" @default.
- W2493114848 hasPublicationYear "2012" @default.
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