کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7751346 | 1499181 | 2013 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Assembly structures of 1:2 nickel(II) complex of 5-methylimidazol-4-yl-methylidene-l-phenylalanine and 1:2 nickel(II) complex of its racemic ligand
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی معدنی
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چکیده انگلیسی
Two 1:2 nickel(II) complexes, [Ni(HLL-phe)2]·MeOH·3H2O (1) using an optically pure tridentate ligand of 5-methylimidazol-4-yl-methylidene-L-phenylalanine (H2LL-phe) and [Ni(HLDL-phe)2]·6H2O (2) using its racemic ligand (H2LDL-phe) were synthesized and the crystal structures were determined. Both nickel(II) ion is coordinated by (N2O)2 donor atoms from two tridentate ligands and has an octahedral coordination environment. Complex 1 crystallized in an acentrosymmetric monoclinic space group, P21 (No. 4). In the crystal, 1 contains only the l-isomer and forms a homochiral 2D structure through hydrogen bonding between the adjacent complex molecules. In contrast, Complex 2 crystallized into a centrosymmetric monoclinic space group P21/c (No. 14). In the crystal, 2 consists of [Ni(HLd-phe)2] and [Ni(HLl-phe)2] molecule that are related and forms a heterochiral 3D structure via hydrogen bonding through the crystal solvents.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Inorganica Chimica Acta - Volume 406, 1 September 2013, Pages 59-64
Journal: Inorganica Chimica Acta - Volume 406, 1 September 2013, Pages 59-64
نویسندگان
Seira Shintoyo, Suguru Yamauchi, Tomohiro Oishi, Naohide Matsumoto, Takeshi Fujinami,