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Table 1 Structural information of Cu and Mg orthovanadates and divanadates

From: Structural characterization and colour of MgxCu3-xV2O8 (0 ≤ x ≤ 3) and MgyCu2-yV2O7 (0 ≤ y ≤ 2) compositions

Structure

ICSD* reference

Crystalline system

Standard unit cell* (Å and degrees)

Standard space group

Z

Cu3V2O8

27184

Triclinic

a = 5.196 (4), b = 5.355 (1), c = 6.505 (4), α = 69.22 (3), β = 88.69 (4), γ = 68.08 (3)

P −1

1

Cu3V2O8

27310

Monoclinic

a = 6.2493 (9), b = 7.9936 (9), c = 6.378 (1), β = 111.49 (1)

P 1 21/c 1

2

MgCu2V2O8

404852

Monoclinic

a = 6.453 (1), b = 8.342 (2), c = 11.517 (2), β = 90.44 (2)

P 1 21/c 1

4

Mg2CuV2O8

404851

Monoclinic

a = 6.167 (3), b = 8.172 (5), c = 6.400 (3), β = 116.22 (3)

P 1 21/c 1

2

Mg3V2O8

156155

Orthorhombic

a = 6.0814 (7), b = 11.469 (1), c = 8.337 (1)

C m c a

4

α-Cu2V2O7

34756

Orthorhombic

a = 8.411 (5), b = 20.68 (1), c = 6.448 (5)

F d d 2

8

β-Cu2V2O7

158375

Monoclinic

a = 7.6890 (8), b = 8.0289 (9), c = 10.1065 (8), β = 110.252 (7)

C 1 2/c 1

4

γ-Cu2V2O7

171028

Triclinic

a = 5.087 (1), b = 5.823 (1), c = 9.402 (2), α = 99.780 (3), β = 97.253 (3), γ = 97.202 (3)

P −1

2

Cu1.5 Mg0.5V2O7

69731

Monoclinic

a = 7.660 (6), b = 8.089 (8), c = 10.117 (9), β = 110.6 (1)

C 1 2/c 1

4

Cu1.33 Mg0.67V2O7

69732

Monoclinic

a = 7.645 (4), b = 8.095 (3), c = 10.119 (3), β = 110.54 (3)

C 1 2/c 1

4

α-Mg2V2O7

93603

Monoclinic

a = 6.599 (1), b = 8.406 (1), c = 9.472 (2), β = 100.6085 (4)

P 1 21/c 1

4

Mg2V2O7

2321

Triclinic

a = 4.912 (2), b = 5.414 (3), c = 10.669 (7), α = 100.36 (4), β = 102.82 (4), γ = 98.58 (4)

P −1

2

  1. * Inorganic Crystal Structure Database (ICSD) (2013).