437-18-3 Usage
General Description
TRIPHENYLCARBENIUM HEXAFLUOROANTIMONATE is a chemical compound with the formula (C6H5)3C+SbF6-. It is a salt involving a cation with three phenyl groups and an anion containing antimony and six fluorine atoms. TRIPHENYLCARBENIUM HEXAFLUOROANTIMONATE is often used as a non-coordinating and weakly coordinating anion in organic and inorganic chemistry. It is known for its ability to stabilize reactive cations and is used in the synthesis and study of various organic and organometallic compounds. It also finds applications in catalysis, ion transport, and as a reaction medium in various chemical reactions. Overall, TRIPHENYLCARBENIUM HEXAFLUOROANTIMONATE plays a significant role in facilitating and controlling a wide range of chemical processes.
Check Digit Verification of cas no
The CAS Registry Mumber 437-18-3 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,3 and 7 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 437-18:
(5*4)+(4*3)+(3*7)+(2*1)+(1*8)=63
63 % 10 = 3
So 437-18-3 is a valid CAS Registry Number.
437-18-3Relevant articles and documents
Preparation and Properties of Annelated Tropylium Salts
Thummel, Randolph P.,Chayangkoon, Paochai
, p. 596 - 601 (1983)
The insertion of methylene into the aromatic ring of benzocyclobutene leads to a mixture of cyclobutane-fused cycloheptatrienes.Treatment of this mixture with a trityl salt affords the cyclobutane-fused tropylium salt in essentially pure form.If this same synthetic approach is applied to other annelated benzenes, bis- and tris-annelated salts can be prepared.The proton and carbon-13 NMR spectra of a series of annelated tropylium salts have been analyzed and interpreted in terms of a rehybridization theory.Small but meaningful trends have been observed in the ultraviolet absorption spectra and pKR+ values.
