Cobalt(2+);1,2,3,4,5-pentamethylcyclopenta-1,3-diene

Base Information

• Chemical Name: Cobalt(2+);1,2,3,4,5-pentamethylcyclopenta-1,3-diene
• CAS No.: 74507-62-3
• Molecular Formula: C20H30Co
• Molecular Weight: 329.451
• Mol file: 74507-62-3.mol

Synonyms:AKOS015915745

Chemical Property of Cobalt(2+);1,2,3,4,5-pentamethylcyclopenta-1,3-diene

Chemical Property:

• Vapor Pressure: 1.97mmHg at 25°C
• Melting Point: >210 °C(lit.)
• Boiling Point: 170.2 °C at 760 mmHg
• Flash Point: 44.4 °C
• PSA: 0.00000
• LogP: 5.94400
• Storage Temp.: 2-8°C
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 0
• Exact Mass: 329.167944
• Heavy Atom Count: 21
• Complexity: 338

Purity/Quality:

98%,99%, ^*data from raw suppliers

Bis(pentamethylcyclopentadienyl)cobalt(II) ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Canonical SMILES: C[C-]1C(=C(C(=C1C)C)C)C.C[C-]1C(=C(C(=C1C)C)C)C.[Co+2]

Technology Process of Cobalt(2+);1,2,3,4,5-pentamethylcyclopenta-1,3-diene

There total 9 articles about Cobalt(2+);1,2,3,4,5-pentamethylcyclopenta-1,3-diene which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 84.0%

bis(η5-pentamethylcyclopentadienyl)cobalt(III) hexafluorophosphate (79973-42-5) → bis(pentamethylcyclopentadienyl)cobalt(II) (74507-62-3)

Guidance literature:

With Na#Hg; In tetrahydrofuran; stirring for 12 h; decantation, evapn., sublimation in vac., crystn. from hexane; elem. anal.;

DOI:10.1021/ja00371a017

Reference yield:

bis(pentamethylcyclopentadienyl)cobalt(1+) cation → bis(pentamethylcyclopentadienyl)cobalt(II) (74507-62-3)

Guidance literature:

In dimethyl sulfoxide; self-exchange reaction of decamethylcobaltocenium-decamethylcobaltocene at 25°C investigated, rate constants and activation parameters evaluated; NMR-spectroscopy; Kinetics;

DOI:10.1021/j100323a026

Reference yield:

decamethyl-cobaltocenium tetrafluoroborate (112840-73-0) → bis(pentamethylcyclopentadienyl)cobalt(II) (74507-62-3)

Guidance literature:

In dimethyl sulfoxide; rate const. for the electron self-exchange of redox couple , obtained by using the NMR line-broadening technique; Kinetics;

DOI:10.1021/ja00214a014

upstream raw materials:

decamethyl-cobaltocenium tetrafluoroborate

bis(η5-pentamethylcyclopentadienyl)cobalt(III) hexafluorophosphate

triphenyl germyllithium

triphenylstannyllithium

Downstream raw materials:

tetraphenyldibismuthine

2{Co(C₅(CH₃)5)2}⁽¹⁺⁾*{C₂(CN)4}^(2-)*CH₃CN={Co(C₅(CH₃)5)2}2{C₂(CN)4}*CH₃CN

decamethylcobaltocenium tetracyanoethenide

Cp*(exo-η⁴-C₅Me₆)Co

Refernces

Cationic Ti(IV) and neutral Ti(III) titanocene-phosphinoaryloxide frustrated Lewis pairs: Hydrogen activation and catalytic amine-borane dehydrogenation

10.1039/c2dt30168g

The research focuses on the synthesis and characterization of titanium-phosphorus frustrated Lewis pairs (FLPs) based on titanocene-phosphinoaryloxide complexes. The study explores the reactivity of these FLPs, particularly their ability to activate hydrogen and catalyze the dehydrogenation of Me2HN·BH3. The cationic titanium(IV) complex [Cp2TiOC6H4P(tBu)2][B(C6F5)4] 2 was found to react with hydrogen to yield the reduced titanium(III) complex [Cp2TiOC6H4PH(tBu)2][B(C6F5)4] 5, and the titanium(III)-phosphorus FLP [Cp2TiOC6H4P(Bu)2] 6 was synthesized through chemical reduction or reaction with specific reagents. Both complexes 2 and 6 were tested as catalysts for the dehydrogenation of Me2HN·BH3, showing activity albeit with lower performance compared to their zirconium(IV) or hafnium(IV) counterparts. The experiments involved the use of various reactants, including [CoCp*2], [Cp2Ti(N(TMS)2)], and t-Bu2P(C6H4)OH, and analyses were conducted using techniques such as NMR spectroscopy, X-ray crystallography, and elemental analysis to characterize the synthesized compounds and monitor the reaction progress.