کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1302037 1498962 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Coexistence of two distinct axial ligands and their thermo-induced substitution in trans-[FeL2(NCS)2][FeL2(CH3OH)2](NCS)2 (L = 4-amino-3-(p-chlorophenyl)-5-(2-pyridyl)-1,2,4-triazole)
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Coexistence of two distinct axial ligands and their thermo-induced substitution in trans-[FeL2(NCS)2][FeL2(CH3OH)2](NCS)2 (L = 4-amino-3-(p-chlorophenyl)-5-(2-pyridyl)-1,2,4-triazole)
چکیده انگلیسی

A novel iron(II) complex, trans-[FeL2(NCS)2][FeL2(CH3OH)2](NCS)2 (1) with 4-amino-3-(p-chlorophenyl)-5-(2-pyridyl)-1,2,4-triazole (L) has been successfully synthesized and characterized. X-ray crystallography analysis shows that 1 is the first example in the mononuclear triazole-based complexes consisting of two distinct molecules: trans-[FeL2(NCS)2] and trans-[FeL2(CH3OH)2](NCS)2 with each octahedral iron(II) center coordinated axial by two NCS− ions in Fe1 but two MeOH molecules in Fe2. Moreover, 1 can lose two MeOH molecules at 220 °C to form trans-[FeL2(NCS)2] (2) which can be transformed to 1 when recrystallizing 2 in methanol. Both 1 and 2 are high-spin species in the range of 1.8–300 K.

A novel iron(II) complex, trans-[FeL2(NCS)2][FeL2(CH3OH)2](NCS)2 (1) has been synthesized and structurally characterized by single-crystal X-ray diffraction. 1 is the first mononuclear triazole-based octahedral complex with two trans-coordinated NCS- ions and MeOH molecules. 1 reveals an interesting substitution of axial ligand NCS– for CH3OH when heated at 220 °C.Figure optionsDownload as PowerPoint slideHighlights
► A new asymmetrical 3,5-disubstituted 1,2,4-triazole and its iron(II) complexes.
► Their structures were characterized by IR, ESI-MS, EA and X-ray crystallography.
► The first mononuclear triazole-based complex with two trans-positions NCS– and MeOH.
► A substitution of axial ligand NCS– for CH3OH in the complex occurs at 220 °C.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Inorganic Chemistry Communications - Volume 28, February 2013, Pages 104–108
نویسندگان
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