Preparation and characterisation of some new Mo/O/XR (X = P or As) heteropoly blue complexes

Selective Methacrolein Oxidation Catalyzed with Heteropoly Compounds: Effect of the Oxidation State Modulated with Hydrogen Pretreatment

“…The binding energy peak at around 231.2 eV is attributed to Mo 5+ , and the peak at about 232.2 eV belongs to Mo 6+ . 13,35 The increasingly obvious peaks of Mo 5+ shown in Figure 4 (a) indicate that more Mo 6+ species are reduced to Mo 5+ in the hydrogen pretreatment procedure. The relative amounts of Mo in different oxidation states were estimated with the peak areas fitted under suitable constraints, and approximate values of the content ratio of c(Mo 5+ )/ c(Mo 6+ ) are presented in Table S3.…”

Ionothermal Synthesis of an Antimonomolybdate Cluster, [Sb8MoVI13MoV5O66]5–, and Its Catalytic Behavior to the Reduction of Nitrobenzene

“…As shown in Figure S13, the peaks of Mo 3d observed at 232.6 and 235.8 eV and 231.8 and 234.9 eV are attributed to those of the Mo oxidation states for Mo VI and Mo V , respectively. 35,36 The ratio of Mo V /Mo VI directly obtained from the peak area is approximately 5:13 (Table S8), drawing a conclusion that there are 5 Mo V and 13 Mo VI atoms in the structure. Furthermore, the status of the delocalized electrons in 1a has also been studied by the solid-state magnetic measurements.…”

Introducing Chirality into Hybrid Clusters from an Achiral Ligand: Synthesis and Characterization of Polyoxomolybdates Containing a Benzylarsonate Group

“…These multifunctional covalently bonded hybrid POM architectures have received great interest, which has expanded greatly during the last decade . A few types of hybrid POM structures with different functional organoarsonate group have been reported, including {Mo 5 O 15 (O 3 AsR) 2 } 4– (R = Me, Et, Pr, CH 2 CH 2 CH 2 ), {Mo 4 O 10 (O 3 AsR) 4 } 4– , {Mo 6 O 18 (O 3 AsR) 2 } 4– , and {Mo 12 O 34 (O 3 AsR) 4 } 4– (R = Ph, MeC 6 H 4 , 4‐H 2 NC 6 H 4 , 4‐HOC 6 H 4 , 4‐HO 2 CC 6 H 4 , 3‐O 2 N,4‐HOC 6 H 3 , 4‐NCC 6 H 4 , 3‐C 2 H 4 ON,4‐HOC 6 H 3 ) . It is noted that the commercial use of benzylarsonic acid as an efficient collector in flotation has not been studied in terms of polyoxometalates, and it is promising to form such hybrid compounds by the introduction of the benzyl group to coordinate both the structures and properties towards a functional complex material.…”