کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1334364 1500241 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dimeric rhenium(IV) and monomeric rhenium(I) and (V) complexes of orotic acid
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Dimeric rhenium(IV) and monomeric rhenium(I) and (V) complexes of orotic acid
چکیده انگلیسی

The reaction of orotic acid (H2or) with trans-[ReOBr3(PPh3)2] in ethanol produced the triply-bridged dimer (μ-Br)(μ-O)(μ-or)[ReIV2Br(OEt)2(PPh3)2] (1). In 2-propanol as solvent the product (μ-Br)(μ-O)(μ-or)[ReIV2Br2(OPri)(PPh3)2] (2) was isolated. In order to eliminate the oxo group as a bridging ligand, the imido-coordinated [ReV{=NC6H4(2-NH2)}Br3(PPh3)2] was reacted with H2or to give the monomer [Re{NC6H4(NH2)}Br(or)(PPh3)2] (3) as product. To remove PPh3 as possible ligand, the reaction of [ReO2(py)4]Cl with H2or produced [ReO(OEt)(or)(py)2] (4). H2or was also reacted with [Re(CO)5Cl], yielding the product (Ph4P)[Re(CO)3(H2O)(or)] (5). The crystal structures of 1–5 were determined by X-ray single crystal diffraction. In addition, infra-red, 1H NMR, electrochemical and electronic properties are also reported.

The reaction of orotic acid (H2or) with trans-[ReOBr3(PPh3)2] in ethanol yielded the triply-bridged dimer (μ-Br)(μ-O)(μ-or)[ReIV2Br(OEt)2(PPh3)2] (1). In 2-propanol the product (μ-Br)(μ-O)(μ-or)[ReIV2Br2(OPri)(PPh3)2] (2) was isolated. In order to eliminate the oxo group as a bridging ligand, the imido-coordinated [ReV{=NC6H4(2-NH2)}Br3(PPh3)2] was reacted with H2or to give the monomer [Re{NC6H4(NH2)}Br(or)(PPh3)2] (3) as product. To remove PPh3 as possible ligand, the reaction of [ReO2(py)4]Cl with H2or produced [ReO(OEt)(or)(py)2] (4). H2or was also reacted with [Re(CO)5Cl], yielding the product (Ph4P)[Re(CO)3(H2O)(or)] (5).Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polyhedron - Volume 98, 25 September 2015, Pages 251–258
نویسندگان
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