From a Bismuth Oxido Diketonate to a Giant Bismuth Oxido Cluster

Phenyl bismuth β-diketonate complexes: Synthesis and structural characterization

“…The aryl ligand occupies the apical position of the bismuth coordination sphere, while the basal plane is completed by five oxygen donors for complexes 1a-1e and 2, or four oxygen and one nitrogen donor in complex 1f (Figs. [3][4][5][6][7][8][9]. The equatorial plane in 1a-1f is formed by two chelating b-diketonate ligands and a coordinated Lewis base molecule.…”

“…Thus, in two of the most studied bismuth(III) compounds from this class, Bi(hfac) 3 [5] and Bi(thd) 3 [6,7] (Hthd = 2,2,6,6-tetramethyl-3,5-heptanedione), the ligands display strong chelating and relatively weaker bridging functions; the latter function is responsible for the assembly of the two complexes into dimers through BiÁÁÁO interactions. Recently, new research directions have emerged for bismuth(III) b-diketonate complexes, such as their use in assembly of heterometallic complexes [5] and polynuclear oxo-clusters [8].…”

Metal–Organic Derivatives with Fluorinated Ligands as Precursors for Inorganic Nanomaterials

“…The overall molecule could be seen as two fused pentagonal pyramids sharing one common edge. Two remarkable homometallic bismuth oxo clusters with hfac − ligand were reported by Dikarev et al 309 The cluster [Bi 9 O 7 (hfac) 13 ] contains bismuth atoms in two distinctly different chemical and coordination environments. Six bismuth atoms form a slightly distorted octahedron, seven faces of which are centered by oxo groups.…”

Hydrolysis to the first dumbbell-like high-nuclearity bismuth-oxo cluster [Bi12(μ3-OH)4(μ2-OH)2(μ3-O)8(μ4-O)2(NO3)6]4+: Synthesis, structure and spectroscopic characterizations

“…The syntheses of bulk bismuth-oxo clusters are carried out usually starting from hydroxide [5], alkoxides [6], aryl oxides [7], carboxylates [8], siloxides [9], phosphonates [10], and ketones [11]. The structural information is very limited because of the high Lewis acidity and expandable coordination sphere of Bi(III), and low aqueous solubility of its salts [12].…”

“…The high bismuth density homo and heterometallic bismuth oxide-based materials [1] can be prepared via chemical vapour deposition (CVD) [2] or via the sol-gel process [3] possessing potential applications in the syntheses of materials such as high-temperature superconductors or non-volatile random access memories [4]. The syntheses of bulk bismuth-oxo clusters are carried out usually starting from hydroxide [5], alkoxides [6], aryl oxides [7], carboxylates [8], siloxides [9], phosphonates [10], and ketones [11]. The structural information is very limited because of the high Lewis acidity and expandable coordination sphere of Bi(III), and low aqueous solubility of its salts [12].…”