Abstract
The structure of glassy boron trioxide B
2
O
3
is a subject of debate since it is not yet established which of two possibilities, either -BO
3
triangles or -B
3
O
6
‘boroxol’ rings, forms the structural unit of a continuous random network describing the structure. We describe the construction of the first hand-built ‘ball-and-stick’ structural model to simulate the structure of glassy B
2
O
3
. It is composed solely of -BO
3
triangles with no boroxol rings whatsoever; the calculated scattering properties of the model agree very well with experimental X-ray and neutron data, although the density of the model is some 17 % higher than the experimental value. This might be reduced either by relaxing the constraint placed during construction that the model be made as dense as possible, or by incorporating a small proportion of boroxol units.
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