Some new Ni-Zn heterodinuclear complexes: Square-pyramidal nickel(II) coordination

Atakol O., NAZIR H., Arici C., Durmus S., Svoboda I., Fuess H.

Inorganica Chimica Acta, cilt.342, ss.295-300, 2003 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 342
  • Basım Tarihi: 2003
  • Doi Numarası: 10.1016/s0020-1693(02)01163-5
  • Dergi Adı: Inorganica Chimica Acta
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.295-300
  • Anahtar Kelimeler: crystal structures, Ni(II) complexes, Schiff base, square-pyramidal, ZINC-COMPLEXES, NUCLEARITY, LIGANDS, CRYSTAL
  • Ankara Üniversitesi Adresli: Evet

Özet

A new series of heterodinuclear nickel(II)-zinc(II) complexes, [NiL·ZnCl2·4-picoline] (1), [NiLDM·ZnCl2·4-picoline] (2), [NiL·ZnBr2·4-picoline] (3), [NiLDM·ZnBr2·4-picoline] (4), [NiLDM·ZnBr2·3-picoline] (5), [NiLDM·ZnBr2·3,5-lutidine] (6) and [NiL·ZnI2·4-picoline] (7), where L is N,N′-bis(salicylidene)-1,3-diaminopropane dianion and LDM is N,N′-bis(salicylidene)-2,2′-dimethyl-1,3-diaminopropane dianion, were prepared. The complexes were characterized by elemental analysis, thermogravimetric analysis and IR spectroscopy. X-ray crystallographic analysis of complexes 1, 2 and 4 revealed that nickel(II) ion in heteronuclear complexes had a square-pyramidal coordination sphere. It is concluded that formation of square-pyramidal nickel(II) coordination depends strongly on the concentration of methyl pyridine present in the medium and occurs when methyl pyridine/Ni ratio is below 1.5. © 2002 Elsevier Science B.V. All rights reserved.