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Ultima descărcare din IBN: 2024-03-25 10:13 |
SM ISO690:2012 RIJA, Andrei, BULHAK, Ion, COROPCEANU, Eduard, GORINCIOI, Elena, CALMÎC, Elena, BARBA, Alic, BOLOGA, Olga. Synthesis and spectroscopic study of some coordinative compounds of Co(III), Ni(II) and Cu(II) with Dianiline- and Disulfanilamideglyoxime
. In: Chemistry Journal of Moldova, 2011, nr. 2(6), pp. 73-78. ISSN 1857-1727. |
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Chemistry Journal of Moldova | ||||||
Numărul 2(6) / 2011 / ISSN 1857-1727 /ISSNe 2345-1688 | ||||||
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Pag. 73-78 | ||||||
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Directed synthesis of dianiline- (DAnH2) and disulfanilamideglyoximes (DSamH2) has been accomplished
by condensation of dichloroglyoxime with aniline or sulfanilamide in 1:2 molar ratio, as well as their corresponding
Co(III), Ni(II) and Cu(II) coordinative compounds. Composition, structure and some properties of dioximes and
complexes have been established by using elemental analysis, UV-Vis, IR and NMR- spectroscopies. Dioxime
coordination at the central atom and structure of complexes depends on pH of reaction medium: at pH=5-6 - bis-
dioximates, whilst at pH=2 – tris-dioximines are obtained. In the case of the corresponding tris-dioximines increment
of the functional groups number in dioxime fragments, which can form intermolecular hydrogen bonds, leads to the
augment of the stability of complexes.
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Cuvinte-cheie α-dioximes, coordinative compounds, 3d metals, spectroscopy |
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