Table 4. Experimental details.
For all structures: Z = 8. Experiments were carried out at 293K with MoK radiation using a Bruker CCD diffractometer. Absorption was corrected for by multi-scan methods, SADABS (Bruker, 2011 ▶).
| Wagnerite from | Panasqueira, Portugal (3b) | Hlsjberg, Sweden (5b) | Khyakhta, Russia (orange) (7b) | Reynolds Range, Australia (9b) | Webing, Austria (2b) |
|---|---|---|---|---|---|
| Crystal data | |||||
| Chemical formula | Mg0.8Fe0.5Mn0.7(PO4)F0.8(OH)0.2 | Mg1.3Fe0.5Mn0.2(PO4)F0.7(OH)0.3 | Mg1.7Fe0.25Mn0.05(PO4)F1.0 | Mg1.94Fe0.06F0.98(OH)0.02 | Mg2(PO4)F |
| M r | 196.6 | 183 | 168.43 | 163.5 | 162.6 |
| Crystal system | Monoclinic | Monoclinic | Monoclinic | Monoclinic | Monoclinic |
| Space group | C2/c(00)s0 | C2/c(00)s0 | C2/c(00)s0 | C2/c(00)s0 | C2/c(00)s0 |
| Wavevectors | q = 0.345990b* | q = 0.410660b* | q = 0.427560b* | q = 0.446520b* | q = 0.500000b* |
| a, b, c () | 13.0183(2), 6.4149(1), 9.8411(1) | 12.8840(2), 6.3889(1), 9.7384(1) | 12.7978(2), 6.3523(1), 9.6642(1) | 12.7707(2), 6.3394(1), 9.6462(1) | 12.7633(4), 6.3282(2), 9.6350(3) |
| () | 118.562 (1) | 117.799 (1) | 117.567 (1) | 117.5240 (5) | 117.5985 (11) |
| V (3) | 721.82(2) | 709.10(2) | 696.46(2) | 692.55(2) | 689.66(4) |
| (mm1) | 4.99 | 3.47 | 1.8 | 1.18 | 1.07 |
| Crystal size | 0.160.160.06 | 0.20.150.15 | 0.60.160.1 | 0.250.250.1 | 0.460.260.26 |
| Data collection | |||||
| No. of measured, independent and observed [I > 3(I)] reflections | 9151, 2484, 2086 | 6943, 2439, 2216 | 17606, 7370, 3766 | 26453, 7409, 4855 | 12149, 3160, 2999 |
| R int | 0.011 | 0.010 | 0.016 | 0.010 | 0.009 |
| (sin/)max (1) | 0.650 | 0.649 | 0.715 | 0.715 | 0.715 |
| No. of satellite reflections | |||||
| First-order obs/all | 1262/1653 | 1413/1625 | 1684/2106 | 1847/2106 | 1939/2102 |
| Second-order obs/all | 10% | 344/2102 | 849/2122 | ||
| Third-order obs/all | 10% | 721/2108 | 1059/2119 | ||
| Refinement | |||||
| No. of reflections | 2484 | 2439 | 7370 | 7409 | 3160 |
| No. of parameters | 167 | 228 | 504 | 503 | 227 |
| No. of constraints | 2 | 2 | 2 | 2 | 0 |
| R int obs/all | 0.010/0.009 | 0.010/0.010 | 0.016/0.018 | 0.010/0.009 | 0.009/0.009 |
| R obs/all | 0.022/0.025 | 0.023/0.024 | 0.031/0.061 | 0.033/0.048 | 0.016/0.017 |
| Main ref. R obs/all | 0.019/0.019 | 0.022/0.022 | 0.024/0.025 | 0.023/0.023 | 0.018/0.018 |
| First-order sat. R obs/all | 0.032/0.046 | 0.025/0.030 | 0.027/0.038 | 0.020/0.025 | 0.014/0.016 |
| Second-order sat. R obs/all | Not refined | 0.128/0.391 | 0.197/0.305 | ||
| Third-order sat. R obs/all | Not refined | 0.106/0.242 | 0.111/0.171 | ||
| wR 2 obs/all | 0.063/0.064 | 0.064/0.065 | 0.079/0.091 | 0.099/0.104 | 0.054/0.055 |
| GOF obs/all | 0.019/0.019 | 0.022/0.021 | 0.021/0.016 | 0.029/0.024 | 0.020/0.020 |