Structural analysis of calix[n]arene-iron(III) complexes (n=4,∈6,∈8) and thermal decomposition of the parent calix[n]arenes

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Deligöz H., Özen Ö., KOYUNDERELİ ÇILGI G.

Journal of Coordination Chemistry, cilt.60, sa.1, ss.73-83, 2007 (SCI-Expanded, Scopus)

• Yayın Türü: Makale / Tam Makale
• Cilt numarası: 60 Sayı: 1
• Basım Tarihi: 2007
• Doi Numarası: 10.1080/00958970600784124
• Dergi Adı: Journal of Coordination Chemistry
• Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Sayfa Sayıları: ss.73-83
• Anahtar Kelimeler: Calix[n]arene, FT-IR, 1H NMR spectroscopy, Iron(III) complexes, TG/DTA, Thermal analysis
• Manisa Celal Bayar Üniversitesi Adresli: Hayır

Özet

In this study, six new calix[n]arene-Fe3+ complexes (n∈=∈4,∈6,∈8) were synthesized with parent calix[n]arenes in a DMF solution of FeCl3∈•∈H2O. The properties and coordination characteristics of the six parent calix[n]arene-Fe3+ complexes were determined by elemental analyses, TG-DTA, UV-vis, FT-IR and 1H NMR spectroscopy. According to UV-vis analysis, in the six complexes the iron(III) coordinated by oxygen donor atoms from calix[n]arene ligands and DMF molecules. The complexes behave as 1∈:∈1 and 1∈:∈2 electrolytes in the case of calix[n]arenes (n∈=∈4,∈6) (1-4) and calix[8]arene (5, 6), respectively. 1H NMR studies demonstrate that 1 and 2 are more stable than 3, 4, 5 and 6 in DMF, and indicate cone conformation of the calix[4]arene ligands (1 and 2).