[O2Pb3]2(BO3)Br: An Oxidoborate Oxide Bromide with the ∞1[O2Pb3] Double Chains Based on Edge‐sharing OPb4 Tetrahedra. Issue 7 (3rd March 2017)

• Record Type: Journal Article
• Authors: Dong, Lingyun; Yang, Jiao; Shen, Shigang; Liu, Zhenzhen; Chen, Xiaojing; Sun, Sufang
• Is Part Of: Zeitschrift für anorganische und allgemeine Chemie. Volume 643:Issue 7(2017)
• Page Start: 471
• Page End: 476
• Publication Date: 2017-03-03
• Subjects: ∞1[O2Pb3] double chains; Oxyborate; Bromine; OPb4 tetrahedra; Crystal structure; Lead; Chemistry, Inorganic -- Periodicals; Chemistry -- Periodicals; 540
• DOI: 10.1002/zaac.201600416
• Languages: English
• ISSNs: 0044-2313

Abstract

Abstract : Through extensive research on the PbO / PbBr2 / B2 O3 system, a new single crystal of yellow lead‐containing oxyborate bromine, [O2 Pb3 ]2 (BO3 )Br, was grown from the melt. It crystallizes in the centrosymmetric space group Cmcm (no. 63) of the orthorhombic system with the following unit cell dimensions: a = 9.5748(8) Å, b = 20.841(2) Å, c = 5.7696(5) Å, and Z = 4. The whole structure is characterized by an infinite one‐dimensional (1D)∞ 1 [O2 Pb3 ] double chain, which is based on the OPb4 oxocentered tetrahedra and considered as the derivative of the continuous sheet of OPb4 tetrahedra from the tetragonal modification of α‐PbO. The 1D∞ 1 [O2 Pb3 ] double chains are further bridged by the BO3 units through common oxygen atoms to form two‐dimensional (2D)∞ 1 [[(O2 Pb3 )(BO3 )] layers, with Br atoms situated between the layers. IR spectroscopy, UV/Vis/NIR diffuse reflectance spectroscopy, and thermal analysis were also performed on the reported material. Abstract :