Na3B4O7X (X = Cl, Br): two new borate halides with a 1D Na-X (X = Cl, Br) chain formed by the face-sharing XNa6octahedra Bai, Chunyan ; Han, Shujuan ; Pan, Shilie ; Zhang, Bingbing ; Yang, Yun ; Li, Lin ; Yang, Zhihua Abstract Publication: RSC Advances Pub Date: 2015 DOI: 10.1039/C4RA16639F Bibcode: 2015RSCAd...512416B