کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1313257 975542 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cyanide and imidazolate bridged macrocyclic dinuclear CuII complexes: Synthesis, structure and magnetic properties
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Cyanide and imidazolate bridged macrocyclic dinuclear CuII complexes: Synthesis, structure and magnetic properties
چکیده انگلیسی

Reaction of [Cu2L](ClO4)4 with CH3CN in acetonitrile, and Him in DMF gave cyanide and imidazolate bridged macrocyclic dinuclear copper (II) complexes with the formula [Cu2L(CN)](ClO4)3 (1) and [Cu2L(im)](ClO4)2 · 0.7Br · 0.3Cl, (2), respectively (L = N[(CH2)2NHCH2(C6H4-p)CH2NH(CH2)2]3N). In 2, each Cu(II) atom is coordinated with four macrocyclic nitrogen atoms and one imidazolate N atom, forming a slightly distorted square pyramidal geometry. Magnetic susceptibility measurements of 1 and 2 show that the two Cu(II) atoms of the binuclear unit are antiferromagnetically coupled with g = 2.148, J = −86.09 cm−1 for 1, and g = 2.047, J = −38.20 cm−1 for 2. The correlation between the structures and the J values is discussed.

Cyanide and imidazolate bridged two macrocyclic dinuclear copper (II) complexes were synthesized and their magnetic properties are investigated. The cyanide bridged complex shows stronger antiferromagnetic interactions due to the shorter Cu⋯Cu separation.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Inorganica Chimica Acta - Volume 358, Issue 6, 30 March 2005, Pages 2129–2134
نویسندگان
, , ,