Table 3 Prediction of CI, MLR, and SPuDS models for novel cubic compounds. Table 3 transition of cubic structure with a = 3.971 A at Curie temperature of 763 K [38]. A single crystal of PbZrO3, at room temperature, has orthorhombic structure with a=8.231A, b=11.77A, and c=5.881 A [39]. However, at high temperature, this compound undergoes a phase transition to cubic structure with a= 4.176 A [38]. More orthorhombic compounds of SrRuO3 [37], CdGeO3 [40], CaGeO3 [41,42], and LaNiO3 [43] are also included in Table 3. Previously, CaGeO3 and CdGeO3 compounds are reported as cubic with a= 3.723 A and a=3.74A respectively [40]. However, these compounds are claimed to be orthorhombic, with a=5.261 A; b=5.268 A; c=7.44A for CaGeO3 and a=5.261A; b=5.268A; c=7.44 A for CdGeO3 [42]. Therefore, their pseudocubic LC is com- puted to be a= 3.792 A (CaGeO3) and a= 3.785 A (CdGeOs) using y/1/4abc [44]. Simple ruthenium based oxides (ARuO;: A = Ba, Sr, Ca) have received attention due to appealing magnetic properties [37]. Both SrRuO3 (a= 5.571 A; b =5.535 A; c=7.85 A) and CaRuO3 (a = 5.357 A; b = 5.533 A; c = 7.663 A) compounds have orthorhom- bic structure [37]. LC values of their pseudocubic perovskite struc- tures are computed, using the same Eq. in [44], to be a = 3.84 A and a= 3.92 A, respectively.