التفاصيل البيبلوغرافية
| العنوان: |
Polydentate chalcogen bonding: anion trapping with a water-stable host compound carrying Se–CF3 functions. |
| المؤلفون: |
Beckmann, J. Louis, Tiessen, Natalia, Neumann, Beate, Stammler, Hans-Georg, Hoge, Berthold, Mitzel, Norbert W. |
| المصدر: |
Dalton Transactions: An International Journal of Inorganic Chemistry; 8/7/2024, Vol. 53 Issue 29, p12234-12239, 6p |
| مصطلحات موضوعية: |
CHALCOGENS, BROMIDE ions, ANIONS, EXCHANGE reactions, IONIC structure, X-ray diffraction |
| مستخلص: |
Bidentate and tetradentate chalcogen bonding host systems with SeCF3 functions as σ-hole donors in close proximity at the alkyne functions of 1,8-diethynylanthracene and its syn-dimer were prepared in quantitative yield by tin-selenium exchange reactions of the corresponding trimethylstannyl precursors with ClSeCF3. The bidentate system shows chalcogen bonding interactions with THF, but does not bind halide ions. The tetradentate system cooperatively chelates chloride, bromide and iodide ions with its four C≡C–SeCF3 units by rotating the four σ-holes towards the halide ion. The structures of these halide ion adducts were determined by X-ray diffraction. The hydrobromide and -iodide salts of the ethyl derivative of Schwesinger's phosphazene superbase served as halide salts with very weakly coordinating cations. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
