Structures of four- and six-coordinate monomers of [N,N '-bis(5-chlorosalicylidene)-1,3-diaminopropane]nickel(II)

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

JOURNAL OF CHEMICAL CRYSTALLOGRAPHY, cilt.30, sa.3, ss.167-171, 2000 (SCI-Expanded, Scopus)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 30 Sayı: 3
  • Basım Tarihi: 2000
  • Doi Numarası: 10.1023/a:1009526913565
  • Dergi Adı: JOURNAL OF CHEMICAL CRYSTALLOGRAPHY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.167-171
  • Anahtar Kelimeler: X-ray, Schiff base, nickel(II) complex, square-planar coordination, octahedral coordination, CRYSTAL-STRUCTURE, COMPLEXES
  • Ankara Üniversitesi Adresli: Evet

Özet

[N,N' -Bis(5-chlorosalicylidene) -1,3 -diaminopropane] nickel(II) [Ni(C17H14N2O2Cl2)] 1 and [N,N' -Bis(5-chlorosalicylidene)-1,3 -diaminopropane] nickel(II) dihydrate [Ni(C17H14N2O2Cl2).2(H2O)] 2 were synthesized, and their crystal structures were determined. Compound 1 is monoclinic, space group C2/c, a = 21.063(4), b = 8.151(1), c = 9.421(2) Angstrom, beta = 94.16(1)degrees, V = 1613.2(5) Angstrom (3), Z = 4 and D-c = 1.680 g cm(-3). Compound 1 contains a crystallographic twofold axis, and the whole molecule is not planar. The two Schiff base moieties, which in themselves are planar, are twisted with respect to one another. The least-squares planes through each half of the molecule are inclined at an angle of 29.1(1)degrees. The Ni atom is in a square-planar environment. The Ni-N and Ni-O distances are 1.958(2) and 1.910(2) Angstrom, respectively. Compound 2 is orthorhombic, space group Pnma, with a = 7.892(1), b = 23.396(2), c = 9.992(1) Angstrom, V = 1846.3(3) Angstrom (3), Z = 4 and D-c = 1.597 g cm(-3). Compound 2 has crystallographic mirror symmetry, and again, the whole molecule is not planar. The two planar Schiff base moieties inclined at an angle of 38.7(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 the coordination sphere is completed by O atoms of two water molecules.