A new structural type of metaborate anion

@article{Smith1961ANS,
  title={A new structural type of metaborate anion},
  author={P. A. S. Smith and Severino Garc{\'i}a-Blanco and Laura Rivoir},
  journal={Zeitschrift f{\"u}r Kristallographie - Crystalline Materials},
  year={1961},
  volume={115},
  pages={460 - 463}
}
I n this paper we describe a new structural type of metaborate anion. I t consists of a three-dimensional framework in which the boron atoms are situated a t t he vertices of a Fedorow's t runcated octahedron. Each boron a tom is surrounded by four oxygen atoms forming tetrahedra which are linked to form a three-dimensional anion. This type of anion, which appears in Z^OfBOjJ j , is very similar to the (Al3Si3012) ion of the sodalite. In the metaborate structures that have been determinated… 
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