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

Two-dimensional B2O3 models (not DFT-optimized) as predicted by GRINSP

They can be porous too...

Construction of these B2O3 models (3D, 2D, 1D and 0D) described in 2005 and 2010 in refs. [1 and 8] - BO3 triangles interconnected exclusively by corner-sharing. See other works in a 2012 paper and in a 2016 thesis. Data from the 2009 (766 models) and 2010 (5118 models) PCOD updates.

Not exhaustive list (more will be added during the next weeks, maybe)...

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...

The following shows that GRINSP may be used for the automatic building of decorative ceramic plaques for bathrooms or swimming pools ;-).

PCOD1500346   CIF

PCOD1500362   CIF

PCOD1500418   CIF

PCOD1500156   CIF

PCOD1500158   CIF

PCOD1500144   CIF

PCOD1500138   CIF

PCOD1500731   CIF

PCOD1500626   CIF

PCOD1500003   CIF

PCOD1500250   CIF

PCOD1500494   CIF

PCOD1500664   CIF

PCOD1500737   CIF

PCOD1500591   CIF

PCOD1500644   CIF

PCOD1500736   CIF

PCOD1500304   CIF

PCOD1500560   CIF

PCOD1500558   CIF

PCOD1500709   CIF

PCOD1500643   CIF

PCOD1500681   CIF

PCOD1500704   CIF