2,2,3,3-Tetramethylsuccinonitrile

Qhov sib xyaw no feem ntau tau txais los ua cov dawb rau tawm -dawb crystalline khoom nrog faint, yam ntxwv nitrile- zoo li tsw. Lub melting point ntog nyob rau hauv thaj tsam ntawm 168-172 degree, xav txog ib tug zoo-txhais crystalline lattice nrog siab symmetry. Qhov ntsuas qhov ceev kwv yees li 1.01 g / cm³ nyob rau hauv ambient tej yam kev mob, nrog ib tug molecular mis ntawm C8H12N2 thiab ib tug molecular hnyav ntawm 136.19. Nws nthuav tawm cov solubility me ntsis hauv cov kuab tshuaj organic xws li acetone, ethanol, thiab ethyl acetate, thaum qhia txog kev solubility tsawg nyob rau hauv tsis yog -polar solvents xws li hexane thiab toluene. Lub compound yog xyaum insoluble nyob rau hauv dej. Lub xub ntiag ntawm ob pawg nitrile txuas mus rau qhov hloov pauv ethane qaum qaum ua rau cov molecule thermally ruaj khov, txawm tias ntev cua sov saum lub melting point yuav induce decomposition. Cia nyob rau hauv ib lub thawv kaw nruj nreem tiv thaiv los ntawm lub teeb ntawm ambient kub yog feem ntau txaus, raws li cov khoom qhia zoo stability nyob rau hauv tus qauv tej yam kev mob. Kev sib cuag nrog cov muaj zog txo cov neeg ua haujlwm xws li lithium aluminium hydride yuav tsum tau tswj nrog ceev faj, vim tias kev txo qis ntawm cov pab pawg nitrile tuaj yeem tshwm sim hauv cov xwm txheej hnyav.

2,2,3,3-Tetramethylsuccinonitrile sawv cev rau qhov hloov pauv aliphatic dinitrile uas muaj cov pa roj carbon nruab nrab txuas rau ob lub quaternary carbon centre, txhua tus coj ib pab pawg nitrile thiab ob methyl substituents. Cov qauv symmetrical no tsim ib qho kev sib cog lus, globular molecule nrog cov steric loj loj nyob ib ncig ntawm lub hauv paus daim ntawv cog lus. Plaub pawg methyl tsim ib lub plhaub hydrophobic nyob ib puag ncig lub ncov qaumteb qabteb nitrile kev ua haujlwm, cuam tshuam rau ob qho tib si solubility yam ntxwv thiab cov khoom ntim hauv lub xeev. Lub molecule muaj feem ntau nyob rau hauv ib tug staggered conformation kom txo tau steric repulsion ntawm cov loj quaternary chaw. Cov pab pawg nitrile nyob rau ntawm qhov kawg ntawm cov molecule, muab linear vectors rau tej zaum supramolecular kev sib cuam tshuam los yog hlau co. Qhov kev sib xyaw ua ke ntawm kev thov siab siab nrog ob qhov kev siv tau siv tau nitrile ua rau qhov no dinitrile yog ib qho tseem ceeb hauv tsev thaiv rau kev tsim cov sterically encumbered architectures thiab rau kev kawm txog qhov cuam tshuam ntawm kev hloov pauv huab cua ntawm kev ua haujlwm thiab lub cev.

Polymer Chemistry thiab Material Science
Hauv kev tshawb fawb polymer, qhov no sterically hindered dinitrile ua haujlwm raws li monomer lossis saw txuas rau kev npaj polyamines los ntawm kev txo qis ntawm cov pab pawg nitrile mus rau thawj amines. Qhov tshwm sim tetramethyl- hloov diamines impart rigidity thiab thermal stability rau polyamides thiab polyimides, cuam tshuam iav hloov kub thiab txhua yam khoom. Lub compound tseem raug tshawb xyuas raws li tus neeg sawv cev kho rau epoxy resins, qhov twg cov pab pawg nitrile tuaj yeem koom nrog kev sib txuas sib txuas ntawm qhov kub siab.

Organic Synthesis Intermediate
Ob qhov kev ua haujlwm ntawm nitrile muab tes rau ntau yam kev hloov pauv xws li txo qis rau amines, hydrolysis rau carboxylic acids, thiab hloov mus rau tetrazoles lossis amidines. Qhov hloov pauv tau zoo ntawm cov molecule ua rau nws muaj txiaj ntsig rau kev kawm cov txiaj ntsig tsis zoo ntawm cov kev hloov pauv no thiab rau kev npaj ligands nrog nruj, zoo -txhais geometries. Kev txo qis lossis hydrolysis tuaj yeem ua rau cov khoom siv tsis sib haum xeeb rau kev siv hauv kev sib koom ua ke chemistry thiab catalyst tsim.

Hlau kev sib koom tes thiab kev kawm nyuaj
Cov pab pawg nitrile tuaj yeem ua cov ligands rau kev hloov pauv hlau ions, tsim cov complexes qhov twg cov pob txha sterically xav tau cuam tshuam rau kev sib koom tes geometry thiab kev ruaj ntseg. Cov complexes no raug soj ntsuam raws li cov qauv rau kev nkag siab cov teebmeem steric nyob rau hauv metalloenzyme active sites thiab raws li precursors rau npaj hlau nanoparticles nrog tswj cov khoom nto. Qhov sib nrug nruj ntawm ob qhov sib koom ua ke nitriles ua rau tsim cov chelate complexes nrog cov nplhaib tshwj xeeb.

Thermal Stabilizer thiab Additive Applications
Vim nws cov thermal stability thiab muaj peev xwm los ntes cov dawb radicals los ntawm cov pab pawg nitrile, qhov sib xyaw no pom siv los ua kom ruaj khov hauv polymer formulations thiab lubricants. Nws tuaj yeem cuam tshuam cov txheej txheem degradation los ntawm kev cuam tshuam radical intermediates generated thaum lub sij hawm thermal lossis oxidative kev nyuaj siab. Nws cov ntsiab lus melting siab thiab tsis tshua muaj hluav taws xob ua rau nws tsim nyog rau cov ntawv thov uas xav tau kev ua haujlwm ruaj khov ntawm qhov kub siab, xws li hauv engineering plastics thiab siab - kub lubricants.

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