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Syntheses, crystal structures and optical properties of two one‐dimensional germanophosphates: HRb 3 Ge 2 (HPO 4 ) 6 and CsGe(HPO 4 ) 2 (OH)
Author(s) -
Song Jun-Ling,
Lu Wen-Xiu,
Guo Tian-Shuo,
Zhou Yu-Hua
Publication year - 2018
Publication title -
acta crystallographica section c
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 17
ISSN - 2053-2296
DOI - 10.1107/s2053229618012792
Subject(s) - octahedron , crystallography , chemistry , caesium , metal , alkali metal , crystal structure , hydrogen bond , infrared spectroscopy , inorganic chemistry , molecule , organic chemistry
Germanophosphates, as a young class of metal phosphates, have been less reported but might possess more diverse structural types and potential applications. Here, two one‐dimensional (1D) alkali‐metal germanophosphates (GePOs), namely, hydrogen hexakis(μ‐hydrogen phosphato)digermaniumtrirubidium, HRb 3 Ge 2 (HPO 4 ) 6 ( 1 ), and caesium bis(μ‐hydrogen phosphato)(μ‐hydroxido)germanium, CsGe(HPO 4 ) 2 (OH) ( 2 ), have been prepared by the solvothermal method. Compound 1 shows 1D [Ge(HPO 4 ) 6 ] ∞ chains along the c axis formed by GeO 6 octahedra and PO 4 tetrahedra, with Rb + cations dissociated between the chains. Compound 2 also exhibits 1D [Ge(HPO 4 ) 4 (OH) 2 ] ∞ chains constructed from adjacent Ge(HPO 4 ) 4 (OH) 2 octahedra, with Cs + cations dissociated between the chains. XRD, TGA, IR and UV–Vis–NIR absorption spectra are presented and discussed for both compounds.