Heteronuclear coordination polymers with imidazole ligand: Synthesis, characterization and alcohol oxidation activities
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Tarih
2024
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Pergamon-Elsevier Science Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Two new heteronuclear Cd(II)/Pd(II) coordination polymers, [Cd2(mu -im)2(Him)4Pd(mu -CN)4]n (1) and [Cd (Him)2Pd(mu -CN)4]n (2) (Him: imidazole), have been synthesized under different conditions and characterized using elemental analysis, thermal analysis, FT-IR and Raman spectroscopy, single-crystal and powder X-ray diffraction techniques. In 1, the Cd(II) ions are bridged by imidazolate ligands to generate 1D chain structure. Neighbouring 1D chains were linked by [Pd(CN)4]2- ions to form 3D framework. In 2, the metal ions are bridged by cyanide ligands to generate 2D [Cd2Pd2(mu -CN)4]n network. Catalytic peroxidative oxidation activity of 1 and 2 was examined on the oxidation of benzyl alcohol using tertiary-butyl hydroperoxide (t-BuOOH) as the oxygen source. The compound 1 exhibited over 90 % product conversion at 80 degrees C in 24-hour reaction time. In addition, the catalyst exhibited high selectivity towards benzaldehyde and no over-oxidation product (benzoic acid) was detected.
Açıklama
Anahtar Kelimeler
Tetracyanopalladate(II) complex, Cadmium(II) complex, Imidazole complex, 3D coordination polymer, Alcohol oxidation
Kaynak
Polyhedron
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
264
