16733-97-4

Basic information

• Product Name: LITHIUM CYCLOPENTADIENIDE
• Synonyms: CYCLOPENTADIENYLITHIUM;CYCLOPENTADIENYLLITHIUM;LITHIUM CYCLOPENTADIENE;LITHIUM CYCLOPENTADIENIDE;LITHIUM CYCLOPENTADIENYLIDE;Lithiumcyclopentadienide,97%;CyclopentadienyllithiuM 97%;1,3-Cyclopentadiene lithium complex
• CAS NO: 16733-97-4
• Molecular Formula: C₅H₅Li
• Molecular Weight: 72.03
• Product Categories: metallocene
• Mol File: 16733-97-4.mol
• Article Data: 6

Chemical Properties

• Appearance: off-white/Powder
• Water Solubility: Insoluble in water.
• Sensitive: Air & Moisture Sensitive
• BRN: 3535737
• CAS DataBase Reference: LITHIUM CYCLOPENTADIENIDE(CAS DataBase Reference)
• NIST Chemistry Reference: LITHIUM CYCLOPENTADIENIDE(16733-97-4)
• EPA Substance Registry System: LITHIUM CYCLOPENTADIENIDE(16733-97-4)

Safety Data

• Hazard Codes: C
• Statements: 34
• Safety Statements: 26-36/37/39-45
• RIDADR: UN 3263 8/PG 2
• WGK Germany: 3
• F: 1-10
• HazardClass: 4.1
• PackingGroup: II
• Hazardous Substances Data: 16733-97-4(Hazardous Substances Data)

Usage

Description

Lithium cyclopentadienide, also known as lithium (C5H5), is a chemical compound consisting of lithium and cyclopentadienyl anion. It is a white to light beige powder and chunks, which is widely used in the synthesis of various organic and inorganic compounds. Due to its unique chemical properties, it has found applications in different industries.

Uses

Used in Chemical Research:
Lithium cyclopentadienide is used as a reagent for preparing metallocenes and cyclopentadienyl derivatives. It plays a crucial role in chemical research, particularly in the synthesis of complex organic molecules and the development of new materials.
Used in Pharmaceutical Industry:
Lithium cyclopentadienide is used as an intermediate in the synthesis of various pharmaceutical compounds. Its unique chemical properties make it a valuable component in the development of new drugs and therapies.
Used in Material Science:
In the field of material science, lithium cyclopentadienide is used in the development of advanced materials, such as catalysts and polymers. Its ability to form stable complexes with various metal ions makes it a versatile building block for designing new materials with specific properties.
Used in Energy Storage:
Lithium cyclopentadienide is also used in the development of advanced energy storage systems, such as lithium-ion batteries. Its ability to form stable complexes with metal ions makes it a promising candidate for improving the performance and safety of these energy storage devices.

InChI:InChI=1/C5H5.Li/c1-2-4-5-3-1;/h1-3H,4H2;/rC5H5Li/c6-5-3-1-2-4-5/h1-3H,4H2

Upstream product

• 1291-32-3 zirconocene dichloride 
• 917-54-4 methyllithium 
• 1271-86-9 N,N-dimethylaminomethylferrocene 
• 7439-93-2 lithium 
• 542-92-7 cyclopenta-1,3-diene 
• 109-72-8 n-butyllithium 

Downstream Products

• 26168-12-7 Cyclopentadienyltrimethylgerman 
• 732985-20-5 [(S)-1-(3-Isopropylidene-cyclopenta-1,4-dienyl)-ethyl]-cyclohexane 
• 38068-98-3 6-(4-methoxyphenyl)fulvene 
• 2143-53-5 cyclopenta-2,4-dienyl 
• 105039-75-6 1-<3-(1,3-cyclopentadien-1-yl)propoxy>-4-(dimethoxymethyl)benzene 
• 14060-53-8 6,6-Bis<4-(dimethylamino)phenyl>fulven 
• 12126-50-0 bis(pentamethylcyclopentadienyl)iron(II) 
• 83928-47-6 1,2,3,4,5-pentamethyl ferrocene 
• 38317-99-6 In(C₅H₅)3P(C₆H₅)3 

Relevant articles and documents

Electron-Deficient Imidazolium Substituted Cp Ligands and their Ru Complexes

The synthesis of electron-poor mono-, di- and tri(imidazolium)-substituted Cp-ylides is presented and their electronic properties are discussed based on NMR spectroscopy, X-ray structure analyses, electrochemical investigations and DFT calculations as well as by their reactivity toward [Ru(CH3CN)3Cp*](PF6). With mono- and di(imidazolium)-substituted cyclopentadienides the respective monocationic and dicationic ruthenocences are formed (X-ray), whereas tri(imidazolium) cyclopentadienides are too electron-poor to form the ruthenocenes. Cyclic voltammetric analysis of the ruthenocenes shows reversible oxidation at a potential that increases with every additional electron-withdrawing imidazolium substituent at the Cp ligand by 0.53–0.55 V in an electrolyte based on a weakly coordinating anion. A reversible oxidation can be observed for the free 1,3-disubstituted ligand as well.

The Photolysis of Cyclopentadienyl Compounds of Tin and Mercury. Electron Spin Resonance Spectra and Electronic Configuration of the Cyclopentadienyl, Deuteriocyclopentadienyl, and Alkylcyclopentadienyl Radicals

Cyclopentadienyl derivatives of tin(IV) and mercury(II) and alkylcyclopentadienyl derivatives of mercury(II) are photolysed in solution to show the e.s.r. spectra of the appropriate radicals RC5H4. (R = H, D, Me, Et, Pri, or But).The C5H5. radical is a planar ?-radical with average D5h symmetry, and its spectrum is broadened in the presence of organic bromides, perhaps by a charge-transfer mechanism.The introduction of alkyl groups breaks the degeneracy of the ψA and ψS molecular orbitals of the ?-system by electron release, destabilising the ψS MO, and the e.s.r. spectrum reflects the spin density distribution in the configuration ψA2ψS1.Deuterium has a small but detectable perturbing effect: the ψA MO is destabilised by ca. 100 J mol-1, and thermal mixing of the two energy levels results in the configuration ψS1.515ψA1.485.This is compatible with the model of a vibrational perturbation of the resonance integral β, rather than of the Coulomb integral α.

A method for the determination of the degree of association of organolithium compounds in liquid ammonia

A method for carrying out cryoscopy in liquid ammonia is presented.The degrees of association of some organolithium compounds in liquid ammonia have been determined.