Synthesis and Structural Characterization of a Binuclear Mixed-Ligand (Salicylate and N, N-diethylnicotinamide) Nickel(II) Complex, Its Magnetic Properties. [Ni2(μ-Sal)4(Dena)2]H2O
[ X ]
Tarih
2014
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Wiley-V C H Verlag Gmbh
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The title complex of [Ni-2(mu-Sal)(4)(Dena)(2)]H2O, [(mu-tetrakissalicylato-kappa-O,O)(bis-N,N- diethylnicotinamide-kappa-N)(binickel(II))] hydrate, C48H52Ni2N4O16, has been synthesized and explained as structure using some elemental analyses. FT-IR spectra, UV- Vis reflectance, magnetic measurements, thermal analysis and x-ray diffraction methods. The results showed that the unit cell of complex includes two molecules Ni-II cation, four molecules salicylates as bridge and two molecules N,N-diethylnicotinamide ligands, also there is one molecule hydrated aqua. The compound crystallizes in the monoclinic space group P2(1)/c with the following unit-cell parameters: a = 13.6776( 6) angstrom, b = 10.5238( 3) angstrom, c = 21.8165( 9), alpha = 90.00 degrees, beta = 126.546( 3)degrees, gamma = 90.00 degrees and Z = 2. The compound [Ni-2(mu-Sal)(4)(Dena)(2)]H2O is a typical paddle-wheel complex structure. Two Ni-II ions are bridged by four salicylate ligands (O2, O2(i), O3, O3(i), O5, O5(i), O6 and O6(i)) using a mu-COO- coordination mode [symmetry code: (i) 1-x, 1-y, 1-z]. Each Ni-II also coordinates to one nitrogen atom (N1 and N1(i)) from one N,N-diethylnicotinamide ligand molecule in the axial position. The complex has strong paramagnetic properties.
Açıklama
Anahtar Kelimeler
Bridge salicylate, Binuclear Ni(II) complex, Strong paramagnetic, Binuclear carboxylate complex, Paddlewheel structure
Kaynak
Journal of the Chinese Chemical Society
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
61
Sayı
12
