Table 2 Chemical composition and lattice constants of pure (M-HCF) and mixed (M h M g-HCF) compounds. a H and c H are the lattice constants in the hexagonal setting.

From: Invariant nature of substituted element in metal-hexacyanoferrate

Compound

composition

structure

a (Å)

a H (Å)

c H (Å)

Mn-HCF

Na1.52Mn[Fe(CN)6]0.882.0H2O

trigonal

(10.5448)

7.5253(8)

17.9307(20)

MnCo-HCF

Na1.56Mn0.80Co0.20[Fe(CN)6]0.891.7H2O

trigonal

(10.5165)

7.5237(6)

17.7945(14)

MnNi-HCF

Na1.64Mn0.75Ni0.25[Fe(CN)6]0.914.2H2O

trigonal

(10.4464)

7.4440(7)

17.8161(16)

Co-HCF

Na1.40Co[Fe(CN)6]0.853.9H2O

trigonal

(10.3620)

7.4240(6)

17.4818(13)

CoMn-HCF

Na1.40Co0.75Mn0.25[Fe(CN)6]0.854.5H2O

trigonal

(10.4047)

7.4544(5)

17.5545(11)

CoNi-HCF

Na1.44Co0.75Ni0.25[Fe(CN)6]0.864.6H2O

trigonal

(10.3458)

7.4133(7)

17.4502(16)

Ni-HCF

Na1.52Ni[Fe(CN)6]0.885.8H2O

cubic

10.2887(21)

  

NiMn-HCF

Na1.60Ni0.78Mn0.22[Fe(CN)6]0.904.7H2O

cubic

10.3455(24)

  

NiCo-HCF

Na1.48Ni0.82Co0.18[Fe(CN)6]0.875.5H2O

cubic

10.2982(21)

  
  1. The lattice constants in the brackets are approximate values (=21/3/31/6 a H 2/3 c H 1/3) in the pseudo-cubic setting.