High oxidation state organomolybdenum and organotungsten chemistry in protic environments

Rational, Facile Synthesis and Characterization of the Neutral Mixed‐Metal Organometallic Oxides Cp*2MoxW6–xO17 (Cp* = C5Me5, x = 0, 2, 4, 6)

“…Specifically, the reaction of Na 2 3 ] 4 [LM = Cp*Rh [32] and (p-MeC 4 H 4 iPr)Ru [33] ] and their tungsten analogues [({η 6 -arene}Ru) 4 (WO) 4 (µ-O) 12 ] (arene = C 6 Me 6 , pMeC 6 H 4 -iPr). [38] We have worked extensively on the aqueous chemistry of the air-stable organometallic complexes Cp* 2 M 2 O 5 (M = Mo, W) [39][40][41][42][43][44][45][46][47][48][49][50] and have recently reported the synthesis and structure of Cp* 2 Mo 6 O 17 (1). [51] This is a hexanuclear organopolyoxometallic species with a Lindqvist-type octahedral arrangement of the six Mo atoms, as shown in Scheme 1.…”

A Cp‐based Molybdenum Catalyst for the Deoxydehydration of Biomass‐derived Diols

“…[29] This complex can be synthesized either by direct oxidation of suitable low-valent precursors (typically carbonyl-based precursors), or by hydrolysis of easily accessible high-valent precursors. [28] This oxophilic complex has earlier been reported as a catalyst for the epoxidation of olefins. [30,31] The bulkier [Cp tt MoO 2 ] 2 O complex, derived from the 1,3-di-tertbutylcyclopentadienyl ligand, was also synthesized according to a literature procedure starting from Mo(CO) 6 .…”

“…For our studies on Cp-based molybdenum-oxo complexes in DODH catalysis, we have considered the use of a number of different complexes. The dinuclear oxo-bridged complex [Cp*MoO 2 ] 2 O [28] was first reported by Herberhold and Thewalt et al in 1985. [29] This complex can be synthesized either by direct oxidation of suitable low-valent precursors (typically carbonyl-based precursors), or by hydrolysis of easily accessible high-valent precursors.…”

Unusual reaction of a tungsten alkylidyne complex with water. Formation, characterization, and crystal structures of oxo trimers

“…microelectronic industry. Such reactions with water have attracted much attention [4][5][6][7][8][9][10][11][12][13]. Schrock, Lippard and coworkers reported the formation of the dimer W 2…”

“…microelectronic industry. Such reactions with water have attracted much attention [4][5][6][7][8][9][10][11][12][13]. Schrock, Lippard and coworkers reported the formation of the dimer W 2 O 3 (CH 2 CMe 3 ) 6 and (NEt 4 )[WO 3 (CH 2 CMe 3 )] from the reactions of H 2 O with W(CH 2 CMe 3 ) 3 (CCMe 3 ) and W(CCMe 3 )(OCMe 3 ) 3 , respectively (Scheme 1) [4,5].…”