866-97-7 Usage
Description
Tetrapentylammonium bromide is a quaternary ammonium salt with pentyl chains and a bromide counterion, which is generally used as a phase transfer catalyst.
Uses
Used in Zeolite Synthesis:
Tetrapentylammonium bromide is used as a versatile structure-directing agent for the synthesis of zeolite-like heterobimetallic cyanide frameworks, enabling the creation of materials with specific structures and properties.
Used in Rhodium(I)-Catalyzed Alkylation Reactions:
In the chemical industry, tetrapentylammonium bromide serves as an alkylating agent for rhodium(I)-catalyzed alkylation reactions of benzylic amines and for N-alkylation of azaheterocycles, facilitating the formation of desired organic compounds.
Used in Catalyst Preparation for Carbon Nanotubes:
Tetrapentylammonium bromide is used as a precursor to prepare a cobalt-complex, [(Pentyl)4N]3CoBr3Cl2, which acts as a catalyst in the synthesis of multiwalled carbon nanotubes (MWCNTs), contributing to the development of advanced materials with unique properties.
Used in Electrochemical Synthesis:
In the field of electrochemistry, tetrapentylammonium bromide is utilized in the synthesis of stable graphite intercalation compounds (GICs) containing tetrapentylammonium cations, which have potential applications in energy storage and other areas.
Purification Methods
Crystallise it from pet ether, *benzene or acetone/ether mixtures and dry in vacuum at 40-50o for 2 days. It is used in ion-paired chromatography (Sagara et al. J Chromatogr 328 289 1985). [Beilstein 4 IV 677.]
Check Digit Verification of cas no
The CAS Registry Mumber 866-97-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,6 and 6 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 866-97:
(5*8)+(4*6)+(3*6)+(2*9)+(1*7)=107
107 % 10 = 7
So 866-97-7 is a valid CAS Registry Number.
InChI:InChI=1S/C20H44N.BrH/c1-5-9-13-17-21(18-14-10-6-2,19-15-11-7-3)20-16-12-8-4;/h5-20H2,1-4H3;1H/q+1;/p-1
866-97-7Relevant articles and documents
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Gordon,J.E.
, p. 4347 - 4358 (1965)
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Anion and Cation Effects on Anion-Templated Assembly of Tetrahydroxytriptycene
White, Nicholas G.,Maclachlan, Mark J.
, p. 5629 - 5636 (2015/11/23)
A tetrahydroxytriptycene ligand 1 assembles through O-H···anion hydrogen bonds into a range of different structures. With tetrabutylammonium bromide, 1 forms a stable nanotube structure that is supported by O-H···anion hydrogen bonds, but its space is occupied by the large cation. In an effort to produce the nanotubes with different cations and anions, 1 was crystallized with different salts. The reaction of 1 with tetraethylammonium bromide gives a 2D net structure, while 1 and tetrapropylammonium bromide give a discrete 1:2 complex. Attempting to co-crystallize 1 and tetramethylammonium bromide gave crystals of an oxidized quinone form of the ligand. When 1 was crystallized with tetrabutylammonium terephthalate, two different one-dimensional anion coordination polymers were obtained, depending on the crystallization solvent: acetonitrile gave a zigzag polymer, while methanol gave a linear structure. In both cases, the tetrabutylammonium cations fill the gaps between the 1D polymers, giving a layered 2D morphology. The wide range of architectures prepared from a relatively simple ligand illustrates the potential utility of O-H···anion interactions for constructing solid-state materials.