کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1306945 1499176 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and structural study of divalent Cu, Zn, Cd and Pd complexes supported by 1,2,3-triazole-based chalcogen ligands
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Synthesis and structural study of divalent Cu, Zn, Cd and Pd complexes supported by 1,2,3-triazole-based chalcogen ligands
چکیده انگلیسی


• Cu, Zn, Cd and Pd complexes with [{4,5-(P(E)Ph2)2(tz)}−] E = (S, Se) were synthesized.
• Their molecular structures were determined by X-ray diffraction.
• The compounds exhibit multiple MEPCN heterocycles as a common structural feature.
• Hydrolysis of the Cu(Se) complex led to the replacement of the Se atoms by O atoms.
• [Zn2{4,5-(P(Se)Ph2)2(tz)}4] exhibits a scorpionate-like coordination mode.

Transition metal complexes of the type [M{4,5-(P(E)Ph2)2tz}2(thf)n] [tz = 1,2,3-triazole; M = Cu, n = 2, E = S(3); M = Cu, n = 0, E = Se(4); M = Zn, n = 2, E = S(5); M = Cd, n = 2, E = S(7), Se(8); M = Pd, n = 0, E = S(9), Se(10)] and [Zn2{4,5-(P(Se)Ph2)2(tz)}4](6) were obtained by reacting [K{4,5-(P(E)Ph2)2tz}] with MX2 (M = Cu, Zn, Cd, X = Cl or M = Pd, X = AcO) in a 2:1 M ratio. The structures of these compounds were investigated by IR, 1H and 31P NMR spectroscopy, as well as by elemental analysis. The molecular structures of 3, 4, 5–10 were determined by single-crystal X-ray diffraction. In addition, during the crystallization process of 4, single crystals of 4a were obtained showing a structure where the replacement of a selenium atom from the non-coordinated PSe moiety by an oxygen atom gives a mixed oxygen–selenium complex. All the compounds exhibit MEPCN heterocycles as a common structural feature but in the case of 6 a bimetallic arrangement with a scorpionate-like coordination mode is also observed.

Transition metal complexes of the type [M{4,5-(P(E)Ph2)2tz}2(thf)n] [tz = 1,2,3-triazole; M = Cu, n = 2, E = S(3); M = Cu, n = 0, E = Se(4); M = Zn, n = 2, E = S(5); M = Cd, n = 2, E = S(7), Se(8); M = Pd, n = 0, E = S(9), Se(10)] and [Zn2{4,5-(P(Se)Ph2)2(tz)}4](6) are reported. All the compounds exhibit MEPCN heterocycles as a common structural feature but in the case of 6 a bimetallic arrangement with a scorpionate-like coordination mode is also observed.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Inorganica Chimica Acta - Volume 412, 1 March 2014, Pages 52–59
نویسندگان
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