کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1308212 1499144 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Chemistry of palladium(II) with bis(3-amidopyridine) ligands
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Chemistry of palladium(II) with bis(3-amidopyridine) ligands
چکیده انگلیسی


• The coordination chemistry of ligands Ar(CONR-3-C5H4N)2 with Pd(II) is reported.
• When Ar = 2,6-C5H3N and R = H, helical bridged complexes are obtained.
• When Ar = 1,3-C6H4 and R = H, eclipsed bridged complexes are obtained.
• When Ar = 1,3-C6H4 or 2,5-C4H2S and R = Me, chelate complexes are obtained.
• The bridged complexes can accommodate guest molecules.

The coordination chemistry of palladium(II) with bis(3-amidopyridine) ligands [LL = 2,6-C5H3N(CONH-3-C5H4N)2, 1; 1,3-C6H4(CONH-3-C5H4N)2, 2; 1,3-C6H4(CONMe-3-C5H4N)2, 3; 2,5-C4H2S(CONMe-3-C5H4N)2, 4] has been investigated. Neutral binuclear macrocyclic complexes trans,trans-[Pd2X4(μ-LL)2] have been characterized with X = Cl or Br and LL = 1. Cationic complexes have been characterized as mononuclear bis(chelate) derivatives [Pd(LL)2]2+, when LL = 3 or 4, but a lantern complex [Pd2(μ-LL)4]4+, when LL = 2. The tendency for chelation versus bridging coordination of the flexible ligands 1–4 is analyzed in terms of substituent effects on the preferred ligand conformations. In the dipalladium complexes, the macrocycle or lantern structure can accommodate guest molecules.

The ligands LL = 2,6-C5H3N(CONH-3-C5H4N)2, 1; 1,3-C6H4(CONH-3-C5H4N)2, 2; 1,3-C6H4(CONMe-3-C5H4N)2, 3; 2,5-C4H2S(CONMe-3-C5H4N)2, 4] have given neutral binuclear macrocyclic complexes trans,trans-[Pd2X4(μ-LL)2], X = Cl or Br and LL = 1, and cationic complexes [Pd(LL)2]2+, when LL = 3 or 4, and a lantern complex [Pd2(μ-LL)4]4+, when LL = 2. The macrocyclic and lantern structures can accommodate guest molecules.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Inorganica Chimica Acta - Volume 445, 24 April 2016, Pages 37–45
نویسندگان
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