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5. Preparation of Water-Soluble Zinc(II) Complexes with Ethylenediaminetetraacetic Acid: Molecular Structure of Zinc Ethylenediaminetetraacetate Trihydrate.

Author

Semenov, V. V., Zolotareva, N. V., Novikova, O. V., Petrov, B. I., Lazarev, N. M., Rumyantsev, R. V., Lopatin, M. A., Lopatina, T. I., Kovylina, T. A., and Razov, E. N.

Subjects
MOLECULAR structure, ZINC, AQUEOUS solutions, ETHYLENEDIAMINETETRAACETIC acid, X-ray diffraction, ZINC compounds
Abstract

Poorly soluble zinc ethylenediaminetetraacetate zincate Zn[ZnL] reacts with sodium Na4L, potassium K4L, ammonium (NH4)4L, 2-ammonioethanol (H3NCH2CH2OH)4L, and hexamethylene-1,6-diammonium {H3N(CH2)6NH3}2L salts of ethylenediaminetetraacetic acid H4L to give readily soluble sodium Na2[ZnL], potassium K2[ZnL], ammonium (NH4)2[ZnL], 2-ammonioethanol (H3NCH2CH2OH)2[ZnL], and hexamethylene-1,6-diammonium {H3N(CH2)6NH3}[ZnL] ethylenediaminetetraacetate zincates. The reaction of tetrakis(triethylammonium) salt {(C2H5)3NH}4L with Zn[ZnL] does not give the expected bis(triethylammonium) ethylenediaminetetraacetate zincate {(C2H5)3NH}2[ZnL], but gives instead mono(triethylammonium) ethylenediaminetetraacetate zincate, {(C2H5)3NH}H[ZnL]; in aqueous solution, this product generates poorly soluble zinc ethylenediaminetetraacetate H2[ZnL(H2O)]·2H2O, which was studied by X-ray diffraction (CCDC no. 2172274). [ABSTRACT FROM AUTHOR]

Published
2023
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