TY - JOUR T1 - Structural, Thermal, and Vibrational Effects of Low Level Rb+ Incorporated in (K1-xRbx)2Ni(SO4)2·6H2O Mixed Crystals JO - Journal of the Brazilian Chemical Society A1 - Oliveira, Victor H. A1 - Ludwig, Valdemir A1 - Cuin, Alexandre A1 - D’Oliveira, Kaique A. A1 - Santos, Ilza T. C. A1 - Anjos, Virgílio C. A1 - Pacheco, Tiago S. A1 - Araújo, José H. de A1 - Ludwig, Zélia M. C. SN - 0103-5053 UL - 10.21577/0103-5053.20260126 VL - 37 Y1 - 2026 PB - Brazil ER -