Napthalene thiab Anthracene yog cov khoom dawb, thaum Tetracene yog txiv kab ntxwv. … Tetracene yuav tsum muaj qhov sib txawv ntawm HOMO-LUMO uas sib haum mus rau qhov pom qhov ntev, ua rau nws muaj xim (qee λ absorbed). Lwm cov tebchaw tsis nqus pom cov wavelengths, yog li cuam tshuam tag nrho cov pom λ thiab tshwm dawb. 8.
Vim li cas Tetracene txiv kab ntxwv?
I tuaj yeem pab ua kom lub hnub ci ua haujlwm tau zoo dua. Tetracene yog plaub-ntiv nplhaib polynuclear (piv txwv li, polycyclic) aromatic hydrocarbon (PAH). Lub ci ci molecule tseem hu ua naphthacene, 2, 3-benzanthracene, thiab benz anthracene. …
Vim li cas naphthalene tsis muaj xim?
Ntawm qhov tsis sib xws, naphthalene molecule muaj ob lub fused rau lub nplhaib nrog rau rau electrons hauv txhua lub nplhaib. Ntawm no, tsis muaj qhov tshwm sim ntawm kev hloov pauv kom tau txais kev ruaj ntseg uas ua kom lub sijhawm xoom dipolethiab yog li ua rau nws tsis muaj xim.
Vim li cas azulene muaj xim?
Txawm hais tias cov txheej txheem isomer naphthalene yog cov xim tsis muaj xim, azulene (1) qhia tau tias dub xiav xim. Yog li ntawd, nws lub npe hu ua "azur" thiab "azul," uas txhais tau tias "xiav" hauv Arabic thiab lus Mev, feem. … Yog li ntawd, txoj kev no tsis yog ib qho kev sib xyaw ua ke ntawm azulene.
Puas yog azulene lossis naphthalene ruaj khov dua?
Nws tsis ruaj khov dua naphthalene, uas nws isomerizes quantitatively ntawm cua sov tshaj 350o thaum tsis muajhuab cua: Azulene muaj qhov tseem ceeb polarity, nrog tsib-ntiv nplhaib tsis zoo thiab xya-ntiv nplhaib zoo.
