- PII
- 10.31857/S0132344X24010049-1
- DOI
- 10.31857/S0132344X24010049
- Publication type
- Article
- Status
- Published
- Authors
- Volume/ Edition
- Volume 50 / Issue number 1
- Pages
- 26-40
- Abstract
- The reaction of methyl anthranilate with 2-methylphenyl-iso-selenocyanate in boiling absolute ethanol affords a new compound: 3-(2-methylphenyl)-2-selenoxo-2,3-dihydroquinazolin-4(1Н)-one (HL). Free ligand HL, which is selone, is preliminarily transformed into the corresponding sodium selenolate [C15H11N2OSeNa] (I), which is then used without isolation in the reaction with cadmium chloride. This reaction leads to the formation of complex [Cd2(μ-L)2(L)2(C2H5OH)2] (II). The structures of the compounds are determined by X-ray diffraction (XRD) (CIF files CCDC nos. 2142342 (НL) and 2246014 (II)) and NMR spectroscopy (1Н, 13С, 15N, and 77Se). In the crystal, the molecules of HL form one-dimensional chains due to H…O and H…Se contacts and alternate in the syndiotactic order. Compound II is the centrosymmetric binuclear complex [C64H56Cd2N8O6Se4]. The cadmium atoms in complex II are hexacoordinated by two chelate anionic ligands L–. According to the NMR data, in a DMSO-d6 solution free ligand HL has the selone structure, whereas in cadmium complex II this ligand exists in the selenolate form, which is consistent with the XRD data on the crystal structures of the compounds.
- Keywords
- 3-(2-метилфенил)-2-селеноксо-2,3-дигидрохиназолин-4(1Н)-он кристаллическая структура биядерный комплекс кадмия(II) спектроскопия ЯМР 1Н,13С,15N 77Se
- Date of publication
- 15.01.2024
- Year of publication
- 2024
- Number of purchasers
- 0
- Views
- 36
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