Pérez Olivier, Elcoro Luis, Pérez-Mato J M, Petříček Václav
CRISMAT/ENSICAEN, UMR CNRS 6508, 6 Boulevard du Maréchal Juin, 14050 CEDEX 4, Caen, France.
Acta Crystallogr B Struct Sci Cryst Eng Mater. 2013 Apr;69(Pt 2):122-36. doi: 10.1107/S2052519213002820. Epub 2013 Feb 27.
The large family of monophosphate tungsten bronzes with pentagonal tunnels (MPTBp), (PO2)4(WO3)2m with m ranging from 4 to 14, can be considered as modular structures via a description with (PO2)2(WO3)m modules related together by a symmetry operation and alternating along the z axis. Following the success of the application of the superspace for the description of the lillianites homologous series, a (3+1)-dimensional superspace model is efficiently defined to unify the structural analysis of the MPTBp. The (3+1)-dimensional model reveals hidden common characteristics such as the symmetry. An evaluation of the model for six well known members of the series was carried out from experimental data collected to this aim.
具有五角形隧道的单磷酸盐钨青铜大家族（MPTBp），即(PO2)4(WO3)2m（m范围为4至14），通过用(PO2)2(WO3)m模块进行描述可被视为模块化结构，这些模块通过对称操作关联在一起并沿z轴交替排列。继超空间成功应用于描述硫铋铅矿同系物系列之后，一个(3 + 1)维超空间模型被有效地定义，以统一对MPTBp的结构分析。该(3 + 1)维模型揭示了诸如对称性等隐藏的共同特征。为此目的，根据收集到的实验数据对该系列六个著名成员的模型进行了评估。
