One-Dimensional Molybdenum Thiochlorides and Their Use in High Surface Area MoS_xChalcogels

Abstract

The new compounds α‐ and β‐MoSCl3 and MoSeCl3 are prepared by chemical vapor transport reaction of MoCl3 and elemental S or Se (sealed silica tubes, 48 h, 400 → 200 °C for α‐MoSCl3 and MoSeCl3 and 400 → 140 °C for β‐MoSCl3).

Remarkable Acid Stability of Polypyrrole‐MoS4: A Highly Selective and Efficient Scavenger of Heavy Metals Over a Wide pH Range

“…The weak peak at 227.8 eV (Figure C) belongs to the S 2s energy . In addition, the two peaks at 165.2 (S 2p 1/2 ) and 163.7 eV (S 2p 3/2 ) deriving from S 2p energy represent the S 2− groups (Figure D),[18a,21,22] and the weak peak at 168.8 eV suggests the presence of a small quantity of SO 4 2− impurity originating from adventitious oxidation of S 2− . SEM images of MoS 4 ‐Ppy (Figure E) show a granular morphology with a granule size of ≈300 nm, similar to the reported Ppy morphology.…”

“…The spectral peaks at 235.8 eV (Mo VI 3d 3/2 ) and 233.1(Mo VI 3d 5/2 ) eV (Figure C) indicate the Mo 6+ oxidation state as expected for the presence of the MoS 4 2− group. The weak peak at 227.8 eV (Figure C) belongs to the S 2s energy . In addition, the two peaks at 165.2 (S 2p 1/2 ) and 163.7 eV (S 2p 3/2 ) deriving from S 2p energy represent the S 2− groups (Figure D),[18a,21,22] and the weak peak at 168.8 eV suggests the presence of a small quantity of SO 4 2− impurity originating from adventitious oxidation of S 2− .…”

Synthesis, properties and structural features of molybdenum(v) oxide trichloride complexes with neutral chalcogenoether ligands

“…19 The crystal structures of two forms of MoSCl 3 obtained from crystals grown at high temperature found that both contain Mo(IV) as Mo 2 units and disulfide groups, and not Mo(V). 20 It is unclear if MoSCl 3 prepared at low temperatures from MoCl 5 and S(SiMe 3 ) 2 or Sb 2 S 3 contains Mo(V), 21,22 while MoSCl 4 is unknown. 19 In order to allow comparisons with the WOCl 4 , WOCl 3 , WSCl 4 and WSCl 3 chemistry, we have examined the chemistry of MoOCl 3 with neutral chalcogenoethers and report here complexes of mono-and bi-dentate thio-, seleno-and telluroethers.…”

Highly Efficient Chalcogel-Based Molecular Filters

“…Generally, chalcogels are prepared by the metathesis technique, wherein coordinative reactions between the chalcogenide anions with metal cations enable the formation of a gel . Utilizing this technique, synthesis of several chalcogenide chemistries like NiMoS 4 , CoMoS 4 ; CoMo 3 S 13 ; ZnSnS 4 , ZnSn 2 S 6 , ZnSn 4 S 10 ; CoS 5 ; and (MoS 2 ) 2 (MoS 4 ) 3 has been reported. In addition, some other approaches based on oxidative coupling, hydrolysis, and acid–base reactions have also shown to yield chalcogels.…”

“…31 Generally, chalcogels are prepared by the metathesis technique, wherein coordinative reactions between the chalcogenide anions with metal cations enable the formation of a gel. 32 37 has been reported. In addition, some other approaches based on oxidative coupling, hydrolysis, and acid−base reactions have also shown to yield chalcogels.…”