Abstract
The recent discovery of the An+1BnX3n+1 (A = lanthanide, B = transition metal, X = tetrel) homologous series provides a new platform to study the structure–property relationships of highly correlated electron systems. Several members of Cen+1ConGe3n+1 (n = 1, 4, 5, 6, and ∞) show evidence of heavy electron behavior with complex magnetic interactions. While the Ce analogues have been investigated, only n = 1, 2, and ∞ of Prn+1ConGe3n+1 have been synthesized, with n = 1 and 2 showing a nonsinglet magnetic ground state. The Pr analogues can provide a platform for direct comparison of highly correlated behavior. In this perspective, we discuss the impetus for synthesizing the Prn+1ConGe3n+1 members and present the structural characterization of the n = 3 and n = 4 members. We lay the foundation for future investigations of the Prn+1ConGe3n+1 family of compounds and highlight the importance of complementary methods to characterize new quantum materials.
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