Double-headed schiff bases of naphthalene-fused disalicylaldehydes: Synthesis, structural analysis and theoretical studies

Novikov A. S., Khrustalev V. N., Novikov A. P., Kubasov A. S., Dukhnovsky E. A., Kritchenkov A. S., ...daha çox

Journal of Molecular Structure, vol.1347, 2025 (SCI-Expanded) identifier

  • Nəşrin Növü: Article / Article
  • Cild: 1347
  • Nəşr tarixi: 2025
  • Doi nömrəsi: 10.1016/j.molstruc.2025.143329
  • jurnalın adı: Journal of Molecular Structure
  • Jurnalın baxıldığı indekslər: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chemical Abstracts Core, Chimica, Compendex, INSPEC
  • Açar sözlər: Disalicylaldehydes, Hydrogen bonds, Noncovalent interactions, Schiff bases
  • Adres: Bəli

Qısa məlumat

The synthesis and structural features of symmetrical double-headed Schiff bases of naphthalene-fused disalicylaldehydes were discussed for the first time. Results of X-ray diffraction analysis reveal that all discussed compounds contain short intramolecular hydrogen bonds of the O[sbnd]H···N, N[sbnd]H···O, and/or C[sbnd]H···N type (the first two contacts are the key structural feature of these molecules, determining their planar structures extending over the imine linkage and leading to the formation of pseudo-six-membered rings), and molecules of studied substances are interconnected by external hydrogen bonds of the C[sbnd]H···O and/or C[sbnd]H···N type in layers or columns in the solid-state. The analysis of Hirshfeld surfaces for the obtained crystal structures shown that in all cases crystal packing dictated mainly by interatomic contacts H···H and C···H.