Complexes of Ethylenediaminetetraacetic Acid with Amines. Molecular Structures of Bis(monoethanolaminium) Ethylenediaminetetraacetate and Bis[tris(hydroxymethyl)methylaminium] Ethylenediaminetetraacetate Trihydrate

• Published in: Crystallography reports Vol. 68; no. 2; pp. 247 - 258
• Main Authors: Semenov, V. V., Zolotareva, N. V., Novikova, O. V., Petrov, B. I., Lazarev, N. M., Fukin, G. K., Cherkasov, A. V., Razov, E. N.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01.04.2023; Springer Nature B.V
• Subjects: Adducts; Amines; Ammonia; Crystallography and Scattering Methods; Diamines; Molecular structure; Physics; Physics and Astronomy; Structure of Organic Compounds
• DOI: 10.1134/S1063774523020141
• ISSN: 1063-7745

Tetrabasic ethylenediaminetetraacetic acid H 4 L binds two molecules of monobasic amines to give the corresponding salts: ethylenediaminetetraacetates of bis(monoethanolaminium) H 2 L 2– ⋅2 + H 3 NCH 2 CH 2 ОН, tris(hydroxymethyl)methylaminium H 2 L 2– ⋅2 + H 3 NС(CH 2 ОН) 3 ⋅3H 2 О, diethylaminium H 2 L 2– ⋅2 + H 2 N(C 2 H 5 ) 2 ⋅H 2 О, tert -butylaminium H 2 L 2– ⋅2 + H 3 NС(CH 3 ) 3 ⋅5H 2 О, and triethanolaminium H 2 L 2– ⋅2 + HN(CH 2 CH 2 ОH) 3 . Dibasic hexamethylene-1,6-diamine, triethylenediamine, and tetramethylethylenediamine form the following 1 : 1 adducts: H 2 L 2– ⋅ + NH 3 (CH 2 ) 6 NH , H 2 L 2– ⋅ + NH 3 CH 2 CH 2 (OCH 2 CH 2 ) 2 NH , H 2 L 2– ⋅ + HN(CH 2 CH 2 ) 3 NH + ⋅H 2 О, and H 2 L 2– ⋅ + H(CH 3 ) 2 NCH 2 CH 2 N(CH 3 ) 2 H + . The molecular structures of bis(monoethanolaminium) ethylenediaminetetraacetate and bis[tris(hydroxymethyl)methylaminium] ethylenediaminetetraacetate trihydrate were determined.