Abstract

The crystal structure of (Cs) 0.26(Rb) 0.74H(SO 4) 0.89(SeO 4) 0.11 (CsRbHSSe) has been determined by X-ray single-crystal analysis. This compound crystallizes in the space group Pc with unit cell dimensions a=14.733(4) A ̊ , b=4.6437(9) A ̊ , c=15.102(4) A ̊ , β=120.94(3)°, and Z=8. The refinement converged to R=0.0391 and wR 2=0.0964. The mixed compound CsRbHSSe is a chain-based structure. The Cs + and Rb + cations are intercalated between chains of HBO 4 − (B=S, Se) groups linked with O–H⋯O hydrogen-bonding. CsRbHSSe presents a new type of structural arrangement different from RbH(SO 4) 0.81(SeO 4) 0.19 (RbHSSe) and CsH(SO 4) 0.76(SeO 4) 0.24 (CsHSSe). Infrared (IR) and Raman spectroscopic studies were performed to confirm results of the radiocrystallographic method.

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