91-12-3 Usage
Description
Bicyclopentadienylidene, also known as a cyclopentadienyl dimer, is a cyclic hydrocarbon consisting of two cyclopentane rings connected via a C2C bond between the methylene groups. It is a unique and versatile compound with a range of applications across different industries.
Uses
Used in Chemical Synthesis:
Bicyclopentadienylidene is used as a key intermediate in the synthesis of various organic compounds, including pharmaceuticals, agrochemicals, and specialty chemicals. Its unique structure allows for the formation of multiple bonds and reactions, making it a valuable building block in organic chemistry.
Used in Material Science:
In the field of material science, bicyclopentadienylidene is used as a precursor for the development of advanced materials with specific properties. Its ability to form stable complexes with metal ions makes it suitable for the creation of metal-organic frameworks (MOFs) and other coordination polymers with potential applications in catalysis, gas storage, and sensing.
Used in Polymer Industry:
Bicyclopentadienylidene is utilized as a monomer in the polymer industry for the production of specialty polymers with unique properties. Its incorporation into polymer chains can lead to materials with enhanced thermal stability, mechanical strength, and chemical resistance, making them suitable for various high-performance applications.
Used in Energy Storage:
In the energy storage sector, bicyclopentadienylidene is explored for its potential use in the development of novel electrode materials for batteries and supercapacitors. Its ability to form stable complexes with metal ions and its redox-active nature make it a promising candidate for improving energy density and power density in energy storage devices.
Overall, bicyclopentadienylidene is a versatile compound with a wide range of applications across various industries, including chemical synthesis, material science, polymer industry, and energy storage. Its unique structure and properties make it a valuable asset in the development of innovative products and technologies.
Check Digit Verification of cas no
The CAS Registry Mumber 91-12-3 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 9 and 1 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 91-12:
(4*9)+(3*1)+(2*1)+(1*2)=43
43 % 10 = 3
So 91-12-3 is a valid CAS Registry Number.
91-12-3Relevant articles and documents
LeVanda et al.
, p. 3181,3186 (1976)
Photochemistry of matrix-isolated cyclopentadienylidene revisited
Maier,Endres
, p. 179 - 187 (2007/10/03)
Irradiation of diazocyclopentadiene (1) in a matrix at 10 K with the wavelength λ = 366 nm leads - as already known - to rapid loss of nitrogen and the formation of cyclopentadienylidene (T-2). Upon photoexcitation of cyclopentadienylidene (2) with light of the wavelength λ = 313 nm the (s-E)-(E)-conformer of 2-penten-4-yn-1-ylidene (T-7a) can be detected, which is effectively converted into 3-ethynylcyclopropene (6) by using light with a wavelength of λ = 436 nm. The structural elucidation of T-7a and 6 is based on the comparison of the experimental and calculated IR spectra. Irradiation of cyclopentadienylidene (2), isolated together with the eliminated nitrogen in the same matrix cage, with light of wavelengths longer than 570 nm initiates a partial back-reaction to the starting material, diazocyclopentadiene (1) by recapturing the evolved nitrogen molecule.
DIRECT IR-SPECTROSCOPIC OBSERVATION OF (1+2)-CYCLOADDITION OF CYCLOPENTADIENYLIDENE TO ETHYLENE IN ARGON MATRIX
Nefedov, Oleg M.,Zuev, Petr S.,Maltsev, Andrey K.,Tomilov, Yuri V.
, p. 763 - 764 (2007/10/02)
Cyclopentadienylidene was generated in argon matrix doped with 2percent C2H4 and the direct reaction of the carbene with C2H4 in matrix, when it was annealing from 12 to 40-45 K, was observed.
