ferrocene वाक्य
उदाहरण वाक्य
मोबाइल
- Reductive cleavage is only restricted to a handful of special substrates, such as ferrocene based hydrazones.
- Reversible delithiation / lithiation of [ [ LiFePO4 | ] ] was successfully demonstrated using ferrocene derivatives.
- Ferrocene can be introduced by heating with the hemicarcerand in a large bulky solvent such as tripiperidylphosphine oxide.
- The iron-containing deposits formed from ferrocene can form a conductive coating on the spark plug surfaces.
- Thus, decamethylferrocene is much more easily oxidised than ferrocene and can even be oxidised to the corresponding dication.
- With a molybdenum-ferrocene complex as catalyst, a turnover number of up to 226 could be achieved.
- For non-aqueous work, IUPAC recommends the use of the ferrocene / ferrocenium couple as an internal standard.
- As an example, figure 1 shows a 54-ferrocene dendrimer which was synthesized by a fast convergent approach.
- Ferrocene can be sublimed in air at over 100 �C with no decomposition; metallocenes are generally purified by vacuum sublimation.
- Using planar chiral ferrocene ligands, enantiomeric excesses ( ee ) upward of 95 % have been observed in aryl couplings.
- In this example, the complex has binding very similar to ferrocene, where one the Cp ligands is multiply substituted.
- In contrast to ferrocene, wherein the cyclopentadienyl rings are in a staggered conformation, those of ruthenocene crystallise with an eclipsed conformation.
- The uranium f orbitals interact substantially with the aromatic rings just as the d-orbitals in ferrocene interact with the Cp ligands.
- Ferrocenium salts are sometimes used as oxidizing agents, in part because the product ferrocene is fairly inert and readily separated from ionic products.
- A QRE with ferrocene or another internal standard, such as cobaltocene or decamethylferrocene, referenced back to ferrocene is ideal for nonaqueous work.
- A QRE with ferrocene or another internal standard, such as cobaltocene or decamethylferrocene, referenced back to ferrocene is ideal for nonaqueous work.
- This observation is not unexpected given that the cobalticinium cation and ferrocene are isoelectronic, although the bonding was not understood at the time.
- In terms of structure and bonding it resembles ferrocene, but with a methyl group on each of the carbons of the Cp rings.
- Consequently, the initial challenge was to definitively determine the structure of ferrocene in the hope that its bonding and properties would then be understood.
- The enzyme is reoxidized with an excess of a mediator reagent, such as a ferricyanide ion, a ferrocene derivative or osmium bipyridyl complex.
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