Molecular and crystal structures of N, N'-propylene- and N, N'- phenylene-diylbis[3-(1-aminoethyl)-6-methyl-2H-pyran-2, 4(3H)-dione] (CROSBI ID 116031)
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Cindrić, Marina ; Kajfež Novak, Tanja ; Užarević, Krunoslav
engleski
Molecular and crystal structures of N, N'-propylene- and N, N'- phenylene-diylbis[3-(1-aminoethyl)-6-methyl-2H-pyran-2, 4(3H)-dione]
Two macrocyclic ligands N, N'-propylene-diylbis[3-(1-iminoethyl)-6-methyl-2H-pyran-2, 4(3H)-dione] I and N, N'-phenylene-diylbis[3-(1-iminoethyl)-6-methyl-2H-pyran-2, 4(3H)-dione] II have prepared by the condensation of dehydroacetic acid (3-acetyl-4-hydroxy-6-methyl-2H-pyran-2-one) with 1, 2-phenylenediamine and 1, 3-propylenediamine. They have been characterized by means of elemental analyses, IR spectroscopy as well as by x-ray crystallography. The x-ray studies confirmed the existence of strong N-H• • • O molecular hydrogen bonds in both structures.
macrocyclic ligands; X-ray crystallography; dehydroacetic acid; crystal structure; hydrogen bonds
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