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Diorganyl ditellurides with intramolecular coordination bonds: synthesis and structure of bis(4,6-dimethylpyrimidin-2-yl) ditelluride |
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| Authors: | A. V. Borisov Zh. V. Matsulevich V. K. Osmanov G. N. Borisova A. O. Chizhov G. Z. Mammadova A. M. Maharramov R. R. Aisin V. N. Khrustalev |
| Affiliation: | 1. R. E. Alekseev Nizhny Novgorod State Technical University, 24 ul. Minina, 603950, Nizhny Novgorod, Russian Federation 2. N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991, Moscow, Russian Federation 3. Baku State University, 23 ul. Z. Khalilova, AZ 1148, Baku, Republic of Azerbaijan 4. A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, 119991, Moscow, Russian Federation |
| Abstract: | A reaction of 2-chloro-4,6-dimethylpyrimidine with sodium ditelluride in DMF afforded bis(4,6-dimethylpyrimidin-2-yl) ditelluride, a new representative of dihetaryl ditellurides. An X-ray diffraction study revealed an unusual planar trans-conformation of this compound, which is stabilized by both intramolecular attractive non-valent Te...N interactions (3.082(2) Å) and π-stacking of the aromatic heterocycles (the centers of the pyrimidine rings are disposed at 3.421(3) ). The energy parameters of the factors that make the molecular structure flattened were estimated by quantum chemical DFT calculations. |
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