The crystal structures of [N,N '-bis(3-methoxysalicylidene)-1,3-diaminopropanelnickel(II) and -copper(II)

Elmali A., Zeyrek C. T., Elerman Y.

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES, cilt.59, sa.2, ss.228-232, 2004 (SCI-Expanded, Scopus)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 59 Sayı: 2
  • Basım Tarihi: 2004
  • Doi Numarası: 10.1515/znb-2004-0216
  • Dergi Adı: ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.228-232
  • Anahtar Kelimeler: Schiff base complexes, nickel(II) complex, copper(II) complex, square-planar coordination, octahedral coordination, CO-ORDINATION COMPOUNDS, SCHIFF-BASES, COMPLEX, LIGAND
  • Ankara Üniversitesi Adresli: Hayır

Özet

[N,N-/'-Bis(3-methoxysalicylidene')-1,3-diaminopropane]nickel(II) dihydrate [Ni(C19H20N2O4). 2(H2O)] 1 and [N,N'-bis(3-methoxysalicylidene)-1,4-diaminobutane]copper(II) [CU(C20H22N2O4)] 2 have been synthesized and their crystal structures determined. Crystals of compound 1 are orthorhombic, space group Pnma, a = 7.509(3), b = 22.070(7), c = 11.532(4) Angstrom, V = 1611.1(12) Angstrom(3), Z = 4 and D-c = 1.498 g(.)cm(-3). The molecule 1 has mirror symmetry, but the ligand is not planar. The two parts of the Schiff base moieties are folded so as to form an angle of 21.6(1)degrees. The Ni atom is in a distorted octahedral geometry and coordinated by the donor atoms of the ligand in the horizontal plane and of two water molecules. Crystals of compound 2 are monoclinic, space group P2(1)/c, a = 9.488(1), b = 21.918(3), c = 8.413(1) Angstrom, beta = 91.45(1)degrees, V = 1749.0(4) Angstrom(3), Z = 4 and D-c = 1.587 g(.)cm(-3). The Cu atom is coordinated by an N2O2 donor set from the imine-phenol ligand in a distorted planar geometry, with the two phenolate O atoms deprotonated. The Cu-O bond lengths are 1.854(3) and 1.868(3) Angstrom. The Cu--N bond lengths are 1.931(3) and 1.950(3) Angstrom, the dihedral angle between the two 3-methoxysalicylidene groups is 43.4(1)degrees.