Akademik Veri Yönetim Sistemi
Journal of Molecular Structure, cilt.1349, 2026 (SCI-Expanded)
Herein the current research, tetrachloromonoferrocenylspirocyclotriphosphazenes (1-3) were resynthesized as starting compounds via condensation reactions of hexachlorocyclotriphosphazene, N3P3Cl6 (HCCP) and ferrocenyldiamines. Reactions of tetrachlorophazenes (2 and 3) with two equimolar amounts of 1-aza-12-crown-4 ether (1N12C4) gave ditopic phosphaza-crown ethers 6 and 8, respectively. However, reactions of 1 and 2 with four equimolar amounts of 1N12C4 gave ditopic-(4) and tetratopic (5 and 7) phosphaza-crown ethers. While in the case of 3, tritopic-(9) and tetratopic-(10) phosphaza-crown ethers were obtained. Complexation reactions of ditopic phosphazanes (4, 6, and 8) with LiI salt gave dinuclear lithium complexes (4a, 6a and 8a). Likewise, complexation reactions of tetratopic phosphazanes (5 and 10) with four equimolar amounts of LiI salt produced geminal dinuclear lithium complexes (5a and 10a). Meanwhile, ditopic phosphazenes (4, 6 and 8) and dinuclear lithium complexes (4a, 5a, 6a, 8a and 10a) have a stereogenic P-center. The tritopic ligand (9) has two stereogenic P-centers. These compounds are expected to exist as racemates. The structures of phosphaza-crown ethers and complexes were interpreted using spectral techniques. Additionally, the crystal structure of 1 was elucidated using X-ray crystallography. Furthermore, the intermolecular interactions in the crystal structure of 1 were revealed by Hirshfeld surface (HS) analysis.