Table 7 Unit cell parameters in crystalline phases with weight fractions higher than 8% from Mg _y Cu _2-y V ₂ O ₇ (0 ≤ y ≤ 2) compositions fired at 600°C/12 h

0.000

C1 (100%)

8.40244 (8) / 20.6701 (2) / 6.44418 (5) // 90.00 / 90.00 / 90.00

0.250

C2 (87.6%)

7.67549 (8) / 8.0734 (1) / 10.1196 (2) // 90.00 / 110.437 (1) / 90.00

C1 (12.4%)

8.3703 (3) / 20.6942 (8) / 6.4551 (3) // 90.00 / 90.00 / 90.00

0.500

C2 (63.1%)

7.6554 (1) / 8.1002 (1) / 10.1168 (2) // 90.00 /110.550 (1) / 90.00

C2’(26.8%)

7.6219 (4) / 8.0881 (6) / 10.1139 (6) // 90.00 / 110.655 (5) / 90.00

M3 (10.1%)

6.7623 (6) / 8.4212 (7) / 9.3331 (9) // 90.00 / 95.61 (1) / 90.00

0.750

M3 (50.51%)

6.7701 (5) / 8.4666 (5) / 9.3134 (7) // 90.00 / 96.577 (7) / 90.00

C2’(29.1%)

7.6322 (4) / 8.0720 (5) / 10.1722 (7) // 90.00 / 111.164 (5) / 90.00

C2 (20.4%)

7.6410 (4) / 8.1202 (5) / 11.1141 (5) // 90.00 / 110.629 (5) / 90.00

1.000

M3 (54.4%)

6.8418 (4) / 8.4116 (4) / 9.3644 (5) // 90.00 / 95.904 (5) / 90.00

C2 (45.6%)

7.6091 (4) / 8.0465 (3) / 10.1275 (5) // 90.00 / 110.048 (5) / 90.00

1.250

C2 (36.4%)

7.6115 (2) / 8.0629 (2) / 10.1148 (3) // 90.00 / 109.804 (3) / 90.00

M4 (40.0%)

6.8263 (2) / 8.0816 (3) / 9.3090 (3) // 90.00 / 88.438 (3) / 90.00

M3 (23.6%)

6.8846 (3) / 8.4130 (4) / 9.2537 (5) // 90.00 / 95.778 (4) / 90.00

1.500

C2 (37.4%)

7.5684 (3) / 8.0539 (3) / 10.1486 (4) // 90.00 / 109.879 (4) / 90.00

M4 (42.3%)

6.8291 (2) / 8.0591 (3) / 9.3291 (3) // 90.00 / 88.249 (3) / 90.00

M1 (20.3%)

6.5895 (5) / 8.3913 (6) / 9.4963 (7) // 90.00 / 100.397 (7) / 90.00

1.750

M1 (73.1%)

6.58498 (9) / 8.3914 (1) / 9.4872 (1) // 90.00 / 100.462 (1) / 90.00

M4 (15.1%)

6.8308 (4) / 8.0534 (4) / 9.3113 (5) // 90.00 / 88.705 (6) / 90.00

C2 (11.8%)

7.5662 (5) / 8.0592 (5) / 10.1427 (6) // 90.00 / 109.864 (6) / 90.00

2.000

M1 (83.9%)

6.60534 (6) / 8.41437 (8) / 9.48264 (9) // 90.00 / 100.6104 (8) / 90.00

M2 (16.1%)

6.6639 (2) / 8.4361 (3) / 9.5745 (3) // 90.00 / 99.446 (3) / 90.00