کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1334904 979482 2010 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Crystal and supramolecular structures of dioxomolybdenum(VI) and dioxotungsten(VI) complexes of dihydroxybenzoic acids
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Crystal and supramolecular structures of dioxomolybdenum(VI) and dioxotungsten(VI) complexes of dihydroxybenzoic acids
چکیده انگلیسی

The tetramethylammonium salts (NMe4)2[MO2(2,3-Hdhb)2]·2H2O and (NMe4)2[MO2(3,4-Hdhb)2]·6H2O (M = Mo, W; Hdhb = monoprotonated form of 2,3- or 3,4-dihydroxybenzoic acid, 2,3-H3dhb or 3,4-H3dhb) were prepared and their crystal structures determined. The structure of [Mg(H2O)6](NMe4)4[MoO2(3,4-dhb)(3,4-Hdhb)]2·13H2O, obtained by the recrystallization of (NMe4)2[MoO2(3,4-Hdhb)2] in the presence of magnesium ions, is also reported. The supramolecular interactions of the five structures are discussed in detail concerning the hydrogen bonding patterns involving complexes and water molecules of crystallization.

The synthesis, detailed crystallization procedures, crystal and molecular structures of five mononuclear molybdenum/tungsten complexes of 2,3- and 3,4-dihydroxybenzoic acids are described. Each structure contains only one of the three possible geometric isomers. The supramolecular hydrogen-bonded networks promoted by the complexes and co-crystallized molecular species have been examined in detail.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polyhedron - Volume 29, Issue 2, 1 February 2010, Pages 719–730
نویسندگان
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