کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1312842 975502 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
One-dimensional azido bridge [1-ethyl-2-(phenylazo)imidazole]manganese(II): Structure of low bridge angle system and magnetism
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
One-dimensional azido bridge [1-ethyl-2-(phenylazo)imidazole]manganese(II): Structure of low bridge angle system and magnetism
چکیده انگلیسی

The reaction of 1-ethyl-2-(phenylazo)imidazole (PaiEt), NaN3 and Mn(OAc)2 · 4H2O at 1:2:1 molar ratio has isolated azido bridge 1-D coordination polymer. In monomeric unit of the complex, MnN6 distorted octahedral coordination is achieved by two EO–N3, two EE–N3 and N,N′-chelation of PaiEt. Bridge angle Mn–(EO)N3–Mn is 98.55(10)°. Variable temperature (300–2 K) magnetic measurements determine J values −13.63 ± 0.10 and 2.31 ± 0.15 cm−1 and support antiferromagnetic (EE–N3) and ferromagnetic (EO–N3) interaction, respectively. Maximum susceptibility (χM = 0.0251 cm3 mol−1) is observed at 43 K.

Azido bridge 1-D coordination polymeric manganese(II) complex of 1-ethyl-2-(phenylazo)imidazole is described. The MnN6 distorted octahedral shows lowest bridge angle Mn-(EO)N3–Mn, 98.55(10)°. Variable temperature (300–2 K) magnetic measurements determine J values −13.63 ± 0.10 (antiferromagnetic) and 2.31 ± 0.15 cm−1 (ferromagnetic).Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Inorganica Chimica Acta - Volume 359, Issue 14, 1 November 2006, Pages 4660–4666
نویسندگان
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