Acta Phys. -Chim. Sin. ›› 1999, Vol. 15 ›› Issue (07): 629-635.doi: 10.3866/PKU.WHXB19990710

• ARTICLE • Previous Articles     Next Articles

Syntheses,Crystal Structure and Properties of Co(II),Fe(II) Complexes with Aza-donating Ligand

Yin Ye-Gao, Huang Yong-De, Zhang Gong-Qi   

  1. Department of Chemistry,Jingzhou Teachers College,Hubei Jingzhou 434100|Department of Chemistry,The University of Hong Kong
  • Received:1998-10-25 Revised:1999-02-01 Published:1999-07-15
  • Contact: Yin Ye-Gao

Abstract:

Four monnuclear Co(Ⅱ) and Fe(Ⅱ) complexes([Co(L1)2] (ClO4)2. (CH3CN) (1 ),[Fe(L1),] (ClO4): (H2O) (2 ), [Co(L2) ] (ClO4)2(3 ), [Fe(L2) ] (ClO4)2. 2H2O (4)(L1 = 4'-Pheny]-2, 2,: 6', 2"-terpyridine and L2 = N,N,N -tris (2 - (2-pyridylmethylimino) ethyl ) amine )were synthesized. The structures of complexes 1 and 3 were determined. Crystals of the two complexes belong to monoclinic space group and their cell parameters are: 1 a = 1. 0855(4) nm ,b= 1. 6201 (5) nm, c = 2. 5236(5) nm, β= 92. 63(2)°, V= 4. 433(1) nm3; 3 a =2. 8351 (8)nm, b = 1. 0670(3) nm, c = 1- 9255(5) nm, β= 101. 03(4)°, V= 5. 717(2) nm3. The redox potentials of complexes 2 and 4 are E = 0. 78 V and 0. 63 V, respectively and the maximal of their d-d transition absorption bands are located at 565 and 521 nm, respectively.

Key words: Terpyridine, Schiff base, Cobalt(II), Iron(II)