75840-23-2

Usage

Properties

Deuterated analog of 1,2,3,4-tetrahydronaphthalene
Contains four deuterium atoms
Used in NMR spectroscopy and other analytical techniques
High purity
Suitable for use in demanding laboratory environments

Molecular structure

Naphthalene ring with four saturated hydrocarbon groups (two methyl and two ethyl) attached to the ring

Isotopic enrichment

D1298% deuterium

Purity

A TOM % (specific purity level not provided)

Explanation

1,2,3,4-TETRAHYDRONAPHTHALENE-D1298 + A TOM % D is a deuterated analog of 1,2,3,4-tetrahydronaphthalene, which means that it has four deuterium atoms in its molecular structure. The deuterium atoms replace hydrogen atoms, which makes the compound useful for various applications in NMR spectroscopy and other analytical techniques. The high purity of the compound makes it suitable for use in demanding laboratory environments, and its precise composition and high level of isotopic enrichment make it an important tool for studying molecular structures and dynamics. The compound's molecular structure consists of a naphthalene ring with two methyl and two ethyl groups attached to the ring. The isotopic enrichment of the compound is D1298%, which means that 98% of the hydrogen atoms in the compound have been replaced with deuterium atoms. The purity of the compound is indicated by the term "A TOM %," although the specific purity level is not provided. The name of the compound is 1,2,3,4-TETRAHYDRONAPHTHALENE-D1298 + A TOM % D.

InChI:InChI=1/C10H12/c1-2-6-10-8-4-3-7-9(10)5-1/h1-2,5-6H,3-4,7-8H2/i1D,2D,3D2,4D2,5D,6D,7D2,8D2

Upstream product

• 447-53-0 1,2-Dihydronaphthalene 
• 91-20-3 naphthalene 
• 91781-00-9 1,2-dihydronaphthalene-1,1,2,2,3,4,5,6,7,8-d10 
• 1146-65-2 naphthalene-d8 

Relevant academic research and scientific papers

Kinetic Isotope Effects and Pressure Effects in Several Hydrogen-Transfer Reactions of Tetralin and Related Compounds

The H/D kinetic isotope effects and activation volumes have been measured for several hydrogen-transfer reactions using tetralin, dihydronaphthalenes, cyclohexa-1,4-diene, and cyclohexanol as donors.The isotope effects were found to exhibit different patterns for reactions of different mechanisms.They indicate whether hydrogen is in transit in the activated complex and show the number of atoms in transit (one or two).The KIE for the reaction of tetralin with quinones is consistent with concerted transfer of two hydrogens whereas the other reactions were found to be stepwise.The activation volumes lie within the range -23 to -33 mL/mol and do not seem to differetiate among bimolecular mechanisms.The relevance to previous studies of the KIE and ΔV(excit.) for coal hydrogenation reactions is discussed.

Evidence for Concerted Transfer of Hydrogen from Tetralin to Coal Based on Kinetic Isotope Effects

The H/D kinetic isotope effects for the reaction of subbituminous coal with tetralin-d12, tetralin-1,1,4,4-d4, and tetralin-2,2,3,3-d4 are respectively 3.7, 2.0, and 2.0.This pattern is consistent with concerted transfer of a pair of hydrogen atoms from the 1- and 2-positions.It does not result from exchange of hydrogen in unreacted tetralin and is difficult to explain as an anomalous secondary effect.The H/D kinetic isotope effects for 1,2-dihydronaphthalene-d10 and -1,1,3-d3 are 2.7 and 1.1.The latter appears to be a typical secondary effect.The rate determining step is thought to be transfer of a single hydrogen from the 2-position, probably as hydride ion.The activation volume for 1,2-dihydronaphthalene is -23mL mol.This result is consistent with the proposed mechanism or almost any other bimolecular mechanism.

Laser-Powered Homogeneous Dissociation of Tetralin

In an effort to determine the products and mechanism of the truly homogeneous thermal dissociation of the aromatic hydrocarbon tetralin, we have examined the products formed from this compound upon energization by infrared multiphoton excitation and SiF4-