See what you will probably never see in reality, thanks to the PCOD

Three-dimensional V2O5 models (not DFT-optimized) as predicted by GRINSP

Construction of these V2O5 models (3D, 2D, and 1D) described in 2005 and 2010 in refs. [1 and 8] - VO5 square pyramids or/and trigonal bipyramids interconnected exclusively by corner-sharing. Data from the 2009 (1319 models) PCOD updates.

Ordered by increasing FD (Framework Density) : largest tunnels and biggest cavities first.

Not exhaustive list (more will be added during the next weeks, maybe, and also, more can be obtained by running again GRINSP)...

References for these GRINSP predictions :

1- Inorganic structure prediction with GRINSP. A. Le Bail, J. Appl. Cryst. 38 (2005) 389-395.   http://journals.iucr.org/j/issues/2005/02/00/cg5019/
2- Predicted corner-sharing titanium silicates. A. Le Bail, Z. Kristallogr., Suppl. 26 (2007) 203-208. https://www.researchgate.net/publication/228093494_Predicted_corner-sharing_titanium_silicates
3- Powerpoint file : Contribution to the "Gordon Conference Style" Workshop : Global Optimisation Techniques Applied to the Prediction of Structures, 5-7 July 2006, University College London (.ppt or zipped)
4- Advances in structure prediction of inorganic compounds. A. Le Bail, Report of 2nd Algerian Crystallography Congress, AlgĂ©rie (2005).  http://arxiv.org/abs/cond-mat/0606025
5- Hypothetical AlF3 crystal structures, A. Le Bail, F. Calvayrac, J. Solid State Chem., 179 (2006) 3159-3166.
6- Inorganic structure prediction: too much and not enough, A. Le Bail, Solid State Phenomena 130 (2007) 1-6.
7- Frontiers between crystal structure prediction and determination by powder diffractometry, A. Le Bail, Powder Diffraction, S23 (2008) S5-S12.
8- Databases of virtual inorganic crystal structures and their applications, A. Le Bail, Phys. Chem. Chem. Phys. 12 (2010) 8521-8530. DOI: 10.1039/c003907c

Etc - search by yourself after all...

PCOD5001029   FD = 9.40   CIF

PCOD5000785   FD = 9.79   CIF

PCOD5001169   FD = 9.82   CIF

PCOD5001182   FD = 10.10   CIF

PCOD5001180   FD = 10.31    CIF

PCOD5001019   FD = 10.80   CIF

PCOD5000489   FD = 11.05   CIF

PCOD5000784   FD = 11.07   CIF

PCOD5001175   FD = 11.07   CIF

PCOD5000884   FD = 11.12   CIF

PCOD5001010   FD = 11.17   CIF

PCOD5000421   FD = 11.57   CIF

PCOD5000947   FD = 11.69   CIF

PCOD5001063   FD = 11.86   CIF

PCOD5001032   FD = 12.06   CIF

PCOD5000068   FD = 11.08   CIF

PCOD5001070   FD = 12.12   CIF

PCOD5001018   FD = 12.16   CIF

PCOD5000802   FD = 12.17   CIF

PCOD5001223   FD = 12.18   CIF

PCOD5001004   FD = 12.19   CIF

PCOD5001280   FD = 12.32   CIF

PCOD5000657   FD = 12.51   CIF

PCOD5001042   FD = 12.52   CIF

PCOD5001050   FD = 12.61   CIF

PCOD5000794   FD = 12.64   CIF

PCOD5001130   FD = 12.65   CIF

PCOD5000799   FD = 13.49   CIF

PCOD5000798   FD = 14.41   CIF

PCOD5000791   FD = 16.67   CIF