15668-66-3

Usage

Uses

Used in Organic Synthesis:
(2,2'-bipyridine)tetracarbonyltungsten⁽⁰⁾ is used as a catalyst in various organic synthesis reactions, facilitating the formation of desired products and improving the efficiency of the reactions.
Used in Synthesis of Tungsten-Containing Compounds:
(2,2'-bipyridine)tetracarbonyltungsten⁽⁰⁾ serves as a precursor for the synthesis of other tungsten-containing compounds, which can be further utilized in different applications such as catalysis, materials science, and pharmaceuticals.

Upstream product

• 366-18-7 [2,2]bipyridinyl 
• 14040-11-0 tungsten hexacarbonyl 
• 407-25-0 trifluoroacetic anhydride 
• 1066-54-2 trimethylsilylacetylene 
• 536-74-3 phenylacetylene 
• 1762-34-1 5,5'-dimethyl-2,2'-bipyridine 
• 766-97-2 4-n-methylphenylacetylene 
• 115775-70-7 fac-W(CO)3(η2-2,2`-bipyridine)(η1-bis(diphenylphosphine)methane) 

Downstream Products

• 21311-02-4 W(CO)3(P(C₆H₅)3)(C₅H₄N)2 
• 796047-56-8 (2,2'-bipyridyl)tricarbonyl(sym-di-p-tolylthiourea)tungsten⁽⁰⁾ 
• 796047-54-6 (2,2'-bipyridyl)tricarbonyl(sym-diphenylthiourea)tungsten⁽⁰⁾ 
• 796047-55-7 (2,2'-bipyridine)tricarbonyl(sym-di-o-tolylthiourea)tungsten⁽⁰⁾ 
• 796047-57-9 (2,2'-bipyridyl)tricarbonyl(sym-di-o-anisylthiourea)tungsten⁽⁰⁾ 
• 333303-94-9 trans-[(2,2'-bipyridine)-dicarbonyl-(1,3-dimesityl-4-chlorodiazaphospholenium)-triflato-tungsten⁽⁰⁾] 
• 333304-04-4 trans-[(2,2'-bipyridine)-dicarbonyl-chloro-(1,3-dimesityl-4-chlorodiazaphospholenium)-tungsten⁽⁰⁾] 
• 290333-98-1 trans-W(CO)4(Ph₂P-tert-Bupy)2 
• 290333-98-1 cis/trans-W(CO)4(Ph₂P-tert-Bupy)2 
• 147527-28-4 fac-W(CO)3(PPh2Me)(η2-2,2'-bipyridine) 
• 115775-70-7 fac-W(CO)3(η2-2,2`-bipyridine)(η1-bis(diphenylphosphine)methane) 

Relevant academic research and scientific papers

Alkynylcarbyne(bipyridine)dicarbonyl(triflouroacetato) complexes - Synthesis and detection of reversible association in solution

A series of alkynylcarbyne(bipyridine)(dicarbonyl)trifluoroacetato complexes, [CF3COO(L-L)(CO)2M≡C-C≡C-R] (M = W, Mo; L-L = 2,2′-bipyridine, 4,4′-dimethyl 2,2′-bipyridine; R = SiMe3, Ph, p-Tol, t-Bu), has been prepared by sequential reaction of [M(CO)6] with Li[C≡CR], trifluoroacetic anhydride, and L - L. All complexes were fully characterized. Concentrated solutions of these complexes exhibit two sets of ν(CO) absorptions (instead of the expected one set (A1/B1). The ratio A1/B1:A1*/B1* is concentration-dependent and decreases with increasing concentration of the complexes in solution. This phenomenon is discussed on the basis of a reversible association of complex molecules to form dimers and oligomers prior to precipitation and crystallization.

Synthesis of the germanium(I) compounds [Ge2Hal4]2- and their reductive condensation to octahedral [Ge6]2- clusters in an organometallic environment

GeI2 reacts with [M2(CO)10]2- (M = Cr, W) leading to reductive coupling of two GeI2 units to produce the [Ge2I4]2- ligands of [{(OC)5M}I2Ge-GeI2{M(CO)5}]2- (1a and 2a). The [Ph4P] salts of these anions have been characterised by X-ray structure analyses as have the [Ph4P] salts of [{(OC)5M}Cl2Ge-GeCl2{M(CO)5}]2- (lb and 2b) obtained from the iodo derivatives la and 2a by halide metathesis with [Ph4P]Cl. Treatment of GeI2 with [W2(CO)10]2- in the presence of 2,2'- bipyridine leads to [{(OC)5W}I2GeGe(bipy){W(CO)5}] (3). The digermanium ligands in 1-3 contain germanium in the unconventional formal oxidation state +I. Reductive condensation of [{(OC)5Cr}I2GeGeI2{Cr(CO)5}]2- (1a) by addition of [Cr2(CO)10]2- leads to the octahedral cluster [{(OC)5Cr}6Ge6]2- (4) in a yield of 40%. The sequence of reactions as reported describes the first systematic approach to the synthesis of [E6]2- clusters.

Four-coordinate group-14 elements in the formal oxidation state of zero - Syntheses, structures, and dynamics of [{(CO)5Cr}2Sn(L2)] and related species

The sodium salts Na2[{(CO)5M}2EX2] (M = Cr, Mo, W; E = Ge, Sn, Pb; X = Cl, I, OOCCH3) react with 2,2′-bipyridine (bipy) to form neutral compounds [{(CO)5M}2E(bipy)] (E = Sn: 1a-1c; E = Ge: 3a; E = Pb: 4). 1,10-Phenanthroline (phen) analogues of compounds 1a-1c and 3a [{(CO)5M}2E(phen)] (E = Sn: 1d-1f, E = Ge: 3b) are as well accessible. The 2,2′-bipyridine ligand in 1 may be formally replaced by two pyridine (py) ligands resulting in [{(CO)5M}2Sn(py)2] (1g: M = Cr, 1h: M = W). The bis-bidentate ligand 2,2′-bipyrimidine (bpmd) is found to coordinate just one [{(CO)5M}2Sn] entity in [{(CO)5M}2Sn(bpmd)] (2b: M = Cr, 2c: M = W). The biimidazolato (biim) ligand binds two [{(CO)5Cr}2Sn] moieties in [{(CO)5Cr}2Sn(biim)Sn{Cr(CO)5} 2]2-, 2a. It is shown by 1H-NMR that the pyrimidine entities in these compounds (2b, 2c) are able to rotate by a full 180° turnaround with respect to one another. This process must involve complete de-coordination of at least one of the two nitrogen donors in again at least one of the chelate cycles, the activation energy for this process being around 60 kJ/ mol. By 119Sn-NMR spectroscopy of almost all of the tin compounds described it is shown that equilibria between [{(CO)5M}2Sn(L2)] and [{(CO)5M}2Sn(L)] + L exist in all cases. From the temperature dependence of the δ values it is concluded that the activation barriers for this association/ dissociation process is below 10 kJ/mol. The structures of all new compounds are documented by X-ray analyses and all compounds are characterized by the usual analytical and spectroscopical techniques.

Group VI metal tricarbonyl complexes containing a unidentate diphosphine ligand II. A study of thermal behaviour of M(CO)3(η2-bpy)(η1-dppm) (M = Mo, W)

fac-W(CO)3(η1-dppm) ( = 2,2'-bipyridine (bpy), 1,10-phenanthroline (phen), 2,9-dimethyl-1,10-phenanthroline (dmp); dppm = bis(diphenylphosphine)methane) have been prepared in high yields by thermal reactions of W(CO)4