Diphenic acid/nicotinamide complexes of CoII, CuII and ZnII. Synthesis and structural investigation
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Tarih
2016
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Pergamon-Elsevier Science Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The complexes of diphenic acid with Co-II and CO metals and diphenic acid/nicotinamide mixed ligand with Con and ZIP metals were synthesized and characterized of structural properties by elemental analysis, FT-IR spectra, thermo analytic TG-DTG/DTA and crystal X-ray diffraction methods. The pure ligand complexes of diphenic acid (C14H16O8Co (1), C14H16O8Cu (2)) and mixed ligand complexes of diphenic acid/nicotinamide (C40H38N4O14Co (3), C40H38N4O14Zn (4)) are similar to each other and they have P2(1), P2(1/)n and P (1) over bar space groups. The diphenic acid ligands in 1 and 2 complexes were coordinated to metal cations as dianionic bridge and in the others complexes (3 and 4) it was involved as monoanionic counter ion. The complexes of 1 and 2 are linked into sheets by a combination of O-H center dot center dot center dot O hydrogen bonds and the others complexes of 3 and 4 are linked into sheets by a combination of O-H center dot center dot center dot O, N-H center dot center dot center dot O and C-H center dot center dot center dot O hydrogen bonds. All of the complexes structures have distorted octahedral geometry. According to TG/DTG-DTA analysis, thermal decomposition of complexes starts with dehydration, of coordinated aqua ligands. After the dehydration, neutral nicotinamide ligands start to decompose in mixed ligand complexes. Lastly, anionic diphenic acid ligands decompose and corresponding metal oxides remain as residual products of thermal degradation in reaction vessel. (C) 2016 Elsevier Ltd. All rights reserved.
Açıklama
Anahtar Kelimeler
Diphenic acid, Nicotinamide, Thermal analysis, Metal organic materials (MOMs), Energy storage materials
Kaynak
Polyhedron
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
117
