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USGS · 70010787

Boron-oxygen polyanion in the crystal structure of tunellite

J. R. Clark
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Abstract

The crystal structure of tunellite, SrO·3B 2 O 3 ·4H 2 O, with infinite sheets of composition n[B 6 O 9 (OH) 2 ] 2- , has cations and water molecules in the spaces within the sheets. Adjacent sheets are held together by hydrogen bonding through the water molecules. The boron-oxygen polyanions provide the first example in hydrated borate crystals of one oxygen linked to three borons.

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J. R. Clark. 1963. Boron-oxygen polyanion in the crystal structure of tunellite. https://doi.org/10.1126/science.141.3586.1178

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