Calcium Apatites and Other Calcium Orthophosphates - Calcium Orthophosphates: Applications in Nature, Biology and Medicine - page 12

Table 1.3 Crystallographic data of calcium orthophosphates [28, 114, 115]

Compound Space group Unit cell parameters Z [a] Density, g cm −3

—

mCPm triclinic P a = 5.6261(5), b = 11.889(2), c = 6.4731(8) 2 2.23

Å, α = 98.633(6)°, β = 118.262(6)°, γ =

83.344(6)°

—

mCPA triclinic P a = 7.5577(5), b = 8.2531(6), c = 5.5504(3) Å, 2 2.58

α = 109.87(1)°, β = 93.68(1)°, γ = 109.15(1)°

DCPD monoclinic I a a = 5.812(2), b = 15.180(3), c = 6.239(2) Å, β 4 2.32

= 116.42(3)°

—

DCPA triclinic P a = 6.910(1), b = 6.627(2), c = 6.998(2) Å, α = 4 2.89

96.34(2)°, β = 103.82(2)°, γ = 88.33(2)°

—

OCP triclinic P a = 19.692(4), b = 9.523(2), c = 6.835(2) Å, α 1 2.61

= 90.15(2)°, β = 92.54(2)°, γ = 108.65(1)°

α -TCP monoclinic P 2 /a a = 12.887(2), b = 27.280(4), c = 15.219(2) Å, 24 2.86

1

β = 126.20(1)°