7,9-Dimesityl-7H-acenaphtho1,2-dimidazol-9-ium Chloride 丨 CAS 1286737-75-4

7,9-Dimesityl-7H-acenaphtho[1,2-d] imidazol-9-ium chloride feem ntau yog siv los ua cov neeg ua ntej rau kev tsim cov khoom ruaj khov N-heterocyclic carbenes (NHCs), uas yog cov muaj zog ligands hauv organometry. homogeneous catalysis. Nws cov txheej txheem acenaphtho-raws li nruj thiab loj mesityl substituents ua rau nws muaj txiaj ntsig rau kev tsim cov carbenes uas txhawb kev ua haujlwm siab catalytic thiab xaiv cov kev cuam tshuam xws li kev sib txuas, C-H ua kom, olefin metathesis, thiab hydrosilylation. Nyob rau hauv cov hluavtaws chemistry, nws txhawb kev npaj cov hlau-carbene complexes uas ua rau pom kev txhim kho thermal stability thiab tunable hluav taws xob. Tsis tas li ntawd, cov khoom siv yog siv rau hauv cov ntaub ntawv tshawb fawb, suav nrog kev tsim cov khoom siv ua haujlwm siab heev thiab kev sib koom ua ke polymers, qhov twg cov khoom siv hluav taws xob thiab hluav taws xob ntawm cov carbene tau txais tuaj yeem cuam tshuam cov conductivity, stability, thiab supramolecular architecture.

Lub compound muaj cov txiaj ntsig tseem ceeb vim nws lub peev xwm tsim tau tshwj xeeb NHC ligands ruaj khov. Cov pob txha acenaphtho txhawb kev nruj, txhim kho cov txheej txheem kev ncaj ncees ntawm cov hlau ua haujlwm, thaum cov pab pawg mesityl muab kev tiv thaiv steric uas txhim kho catalyst ntev. Nws cov yam ntxwv ntawm hluav taws xob ua kom zoo -tuning ntawm electron- pub lub zog, txhawb nqa cov tshuab catalytic uas ua tau zoo raws li qhov xav tau ntawm cov tshuaj tiv thaiv. Cov tshuaj chloride tiv thaiv kom muaj kev ua tau zoo, solubility zoo hauv cov kuab tshuaj, thiab txhim khu kev qha ntawm cov dawb carbene los ntawm cov txheej txheem deprotonation. Cov yam ntxwv no ua rau cov khoom sib xyaw txaus nyiam rau cov kws tshawb fawb nrhiav kev ua haujlwm siab -NHC ua ntej nrog kev ruaj ntseg thiab ntau yam.