The present work consists of synthesis, crystal structure and computational analyses of supramoleculararchitectures: complexes [La(THEEN)(PIC)(H2O)2](PIC)2·2H2O (1), [La(TEAH3)2(H2O)2](PIC)3 (2) and compounds [THEENH2+ (PIC−)2] (I) and [TEAH4+( PIC−)] (II) where THEEN is N,N,N′,N′-tetrakis-(2-hydroxyethyl)ethylenediamine (a tetrapodal ligand) and TEAH3 is triethanolamine (a tripodal ligand). Compounds