Bis(guanidinium) (Hydrogen triethylenetetraminehexaacetato)bismuthate(III) Tetrahydrate

New Bismuth(III), Lanthanum(III), Praseodymium (III), and Heterodinuclear Bi–La and Bi–Pr Complexes with Polyaminocarboxylate Ligands

“…Several Bi(III) complexes with nta, edta and dtpa were already obtained (6). Some years ago, we also described new Bi(III) complexes with ttha and Cydta (7,8). In the particular case of the Bi(H 3 ttha) complex, this previous report was the first one to describe a decadentate Bi(III) PAC complex, in which Bi(III) exhibits a tenfold coordination with bicapped square antiprismatic geometry (7).…”

“…When comparing the IR spectra of the three (gu) 2 M(Httha) complexes (M=Bi, La, Pr), it appears that the Bi compound is the only one giving rise to an absorption band at 1740 cm À1 . In the Bi complex, the Bi atom was found to be ninefold coordinated (8), without involvement of the -COOH group in the coordination sphere, this group being responsible for the high wavenumber value. In the corresponding La and Pr complexes, this -COOH group is involved in metal bonding and this results in a tenfold coordination, as proven by the crystal structure determinations (19,21).…”

Ψ-Polyhedral symbols for bismuth(III) with an active electron lone pair

“…The nine-coordinated systems are represented by TPRS-9 (Adcock et al, 2018;Andrews et al, 2012;Hakimi et al, 2015;Hanifehpour et al, 2015;Lu et al, 2021;Marzano et al, 2013;Morsali, 2005;Qi et al, 2020;Thirumurugan & Cheetham, 2010;Thirumurugan et al, 2012;Wang et al, 2015;Wibowo et al, 2011b;Wullens et al, 1998;Yue et al, 2015) and SAPRS-9 (Al-Nubi et al, 2021;Antsyshkina et al, 2006;Busch et al, 2012;Gungor & Kose, 2018;Lu et al, 2021;Sushrutha & Natarajan, 2013;Thirumurugan & Cheetham, 2010;Vilela et al, 2018;Wang et al, 2017a;Yang et al, 2012). Other higher coordinated systems are also known: SAPRS-10 ( Chen et al, 2013;Meng & Zhang, 2011;Morsali et al, 2001;Roodsari et al, 2015;Thirumurugan & Cheetham, 2010;Wrobel et al, 2017), CUS-10 (Adcock et al, 2018) and PPRP-12 (Thirumurugan & Cheetham, 2010).…”