Hexacyanochromates(III) and hexacyanocobaltates(III) of copper(II) with tridentate and tetradentate n-donor ligands. Crystal structure of [{Cu(ept)}3{Co(CN)6}2]·H2O (ept = n-(2-aminoethyl)-1,3-propandiamine)

Kutláková K. M., Smékal Z., Neels A., ÖNAL M., Šindelář Z.

Polish Journal of Chemistry, cilt.83, sa.10, ss.1707-1716, 2009 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 83 Sayı: 10
  • Basım Tarihi: 2009
  • Dergi Adı: Polish Journal of Chemistry
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1707-1716
  • Anahtar Kelimeler: Chromium(III), Cobalt(III), Copper(II), Cyano-bridged complexes, Structure
  • Ankara Üniversitesi Adresli: Evet

Özet

The following complexes [{Cu(ept)}3{Cr(CN)6} 2]·5H2O, [{Cu(hatce)}3{Cr(CN) 6}2]· ·15H2O, [{Cu(hatco)} 3{Cr(CN)6}2]·14H2O, [{Cu(ept)}3{Co(CN)6}2]·5H2O, [{Cu(hatce)}3{Co(CN)6}2]·18H 2O and [{Cu(medpt)}3{Co(CN)6} 2]·H2O (ept = N-(2-aminoethyl)-1,3-propandiamine, hatce = 1,3,6,10,12,15-hexaazatricyclo [13.3.1.16,10]eicosane,hatco= 1,3,6,9,11,14-hexaazatricyclo[12.2.1.16, 9]octadecane and medpt=N,N-bis-(3-aminopropyl)methylamine) have been synthesized by the reactions of Cu(ClO4)2·6H2O or Cu(NO 3)2·3H2O and ept or medpt, or [Cu(hatce)](ClO4)2·2H2O and [Cu(hatco)Cl]ClO4·H2O, and K3[Cr(CN) 6] or K3[Co(CN)6] in aqueous solution, respectively. All the compounds have been characterized by elemental analyses, IR and UV-Vis spectroscopies and magnetic measurements and the three selected complexes were studied using thermal analysis. The crystal structure of [{Cu(ept)}3 {Co(CN)6}2]· ·H 2O has been determined by single-crystal X-ray analysis.-the studied compound can be formulated as [{Cu(ept)}6{Co(CN)6} 3][Co(CN)6]·2H2O. The copper atom is five-coordinated by two cyanide-nitrogen and three ept-nitrogen atoms, in a distorted square-pyramidal arrangement. The structure of the other complexes with cyanide bridges between hexacoordinated chromium(III) (S = 3/2) or cobalt(III) (S = 0) and pent.-or hexacoordinated copper(II) (S = 1/2) is proposed.