Organometallic Mo–O–Bi complexes

Synthesis and photoluminescence of three bismuth(iii)-organic compounds bearing heterocyclic N-donor ligands

“…Approximately eight chlorobismuth tetramers with organic ligands bound directly to the bismuth metal center have been described. Most of the tetramers reported are polychlorobismuthates, with the general formula [Bi 4 Cl x ] 12−x (where x = 16, 18, or 20), that are charge balanced by outer coordination sphere metal and/or ligand cations. Dimeric motifs such as that observed in 3 are common structural units in bismuth-organic materials literature; however, 3 is the first example of a bismuth-terpy species with chloride in the inner coordination sphere of the metal.…”

“…Bismuth and bismuth-based materials have been utilized as pharmaceuticals, photocatalysts, and other solid-state materials, [1][2][3][4][5][6][7] due to their attractive materials properties including nontoxicity, high thermodynamic stability, and low cost. [2][3][4][8][9][10][11] However, as compared to transition metal-and lanthanide-organic complexes, relatively limited examinations of structure-property relationships in main group metal complexes and extended networks have been reported. Recently, though, bismuth-based compounds have attracted increasing attention due, in part, to their unique photoluminescence behaviour.…”

Iron–molybdenum-oxo complexes as initiators for olefin autoxidation with O2

“…In recent years, we have been interested in molecular heterobimetallic oxo compounds that can mimic certain structural units proposed to occur on the surfaces of corresponding heterogeneous catalysts composed of two metal oxide components. [16][17][18][19][20][21][22] The fact that MoO 3 /Fe 2 O 3 catalysts are employed for the oxidation of methanol to formaldehyde in the so-called FORMOX process has spurred us to investigate Fe-O-Mo compounds. While some purely inorganic polyoxometal aggregates [23][24][25][26][27][28][29][30] and coordination polymers [30][31][32][33][34][35][36][37] featuring Fe-O-Mo entities have been published, so far only five structurally characterised molecular coordination compounds have been reported, where molybdate units are bridging ligated iron ions.…”

“…While some purely inorganic polyoxometal aggregates [23][24][25][26][27][28][29][30] and coordination polymers [30][31][32][33][34][35][36][37] featuring Fe-O-Mo entities have been published, so far only five structurally characterised molecular coordination compounds have been reported, where molybdate units are bridging ligated iron ions. 27,[38][39][40][41][42][43] Since the replacement of purely inorganic molybdate by a monovalent organomolybdate, namely Cp*MoO 3 − (Cp* = η 5 -C 5 Me 5 ), has already served us for the preparation of model compounds in the past, [16][17][18] we were interested in an investigation on (L)Fe II…”

Arylphosphonic acid esters as bridging ligands in coordination polymers of bismuth

“…Most examples of such coordination polymers reported to date are based on carboxylates (Stavila et al, 2004;Chen et al, 2008Chen et al, , 2011Jiang et al, 2008;Andrews et al, 2009;Thirumurugan et al, 2010;Anjaneyulu and Swamy, 2011;Wibowo et al, 2011;Anjaneyulu et al, 2012) and nitrogen-containing donor ligands (Morsali, 2006;Morsali and Mahjoub, 2006;Tershansy et al, 2007). Additionally, poly meric bismuth alkoxides (Whitmire et al, 1992;Roggan et al, 2005;Kricheldorf et al, 2008;Breunig et al, 2009b) have been reported as well as coordination polymers with sulfur-or seleniumcontaining donor ligands (Barton et al, 2000;Yim et al, 2000;Briand et al, 2012). Bismuth halides and pseudo halides are also capable of forming coordination polymers (Clegg et al, 1992(Clegg et al, , 1993Wang et al, 1997;Breunig et al, 2009a;Erbe et al, 2010;Koch and Ruck, 2010), and additionally, aromatic π donors (Silvestru et al, 1999;Mehring and Schürmann, 2001;Schmidbaur and Schier, 2008;Auer et al, 2009;Caracelli et al, 2013), organometallic ligands (Roggan et al, 2005), hexacyanoferrates (Perera et al, 2011), and polyoxometallates (Xu et al, 2007) were shown to bridge bismuth atoms to give unusual coordination polymers.…”