Magnetically active coordination polymers containing VO2+ and Na+ cations linked by substituted malonic acid anions
ES Bazhina, GG Aleksandrov, MA Kiskin… - Russian Chemical …, 2014 - Springer
ES Bazhina, GG Aleksandrov, MA Kiskin, NN Efimov, EA Ugolkova, VV Minin, AA Sidorov…
Russian Chemical Bulletin, 2014•SpringerThe interaction of vanadyl sulfate VOSO 4· 3H 2 O and dimethylmalonic (H 2 Me 2 mal== C
3 H 6 (CO 2 H) 2), butylmalonic (H 2 Bumal= C 4 H 10 (CO 2 H) 2), and cyclobutane-1, 1-
dicarboxylic (H 2 cbdc= C 4 H 6 (CO 2 H) 2) acids with Na 2 CO 3 at pH∼ 4 in aqueous
solutions gives crystals of compounds [Na 4 (VO) 2 (Me 2 mal) 4 (H 2 O)] n (1),{[Na 6 (VO) 3
(Bumal) 6 (H 2 O) 15]·· 3H 2 O} n (2), and [Na 2 (VO)(cbdc) 2 (H 2 cbdc)(H 2 O) 3] n (3),
whose structures were determined by X-ray diffraction analysis. The formation of 3D (for 1) …
3 H 6 (CO 2 H) 2), butylmalonic (H 2 Bumal= C 4 H 10 (CO 2 H) 2), and cyclobutane-1, 1-
dicarboxylic (H 2 cbdc= C 4 H 6 (CO 2 H) 2) acids with Na 2 CO 3 at pH∼ 4 in aqueous
solutions gives crystals of compounds [Na 4 (VO) 2 (Me 2 mal) 4 (H 2 O)] n (1),{[Na 6 (VO) 3
(Bumal) 6 (H 2 O) 15]·· 3H 2 O} n (2), and [Na 2 (VO)(cbdc) 2 (H 2 cbdc)(H 2 O) 3] n (3),
whose structures were determined by X-ray diffraction analysis. The formation of 3D (for 1) …
Abstract
The interaction of vanadyl sulfate VOSO4·3H2O and dimethylmalonic (H2Me2mal = = C3H6(CO2H)2), butylmalonic (H2Bumal = C4H10(CO2H)2), and cyclobutane-1,1-dicarboxylic (H2cbdc = C4H6(CO2H)2) acids with Na2CO3 at pH ∼4 in aqueous solutions gives crystals of compounds [Na4(VO)2(Me2mal)4(H2O)] n (1), {[Na6(VO)3(Bumal)6(H2O)15]· ·3H2O} n (2), and [Na2(VO)(cbdc)2(H2cbdc)(H2O)3] n (3), whose structures were determined by X-ray diffraction analysis. The formation of 3D (for 1) and 2D (for 2 and 3) polymer networks occurs in crystals of the compounds. These networks are constructed of mononuclear bis-chelate dianionic fragments [VOL2]2− (L is the corresponding dicarboxylic acid dianion) linked by the Na atoms. The magnetic properties of the obtained compounds were studied. The solid samples and solutions of complexes 1–3 were characterized by ESR spectroscopy.
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