Nyob rau pem hauv ntej ntawm kev lag luam, tooj liab yuav dhau los ua tus yuam sij rau kev txhim kho tshuaj thiab optoelectronics
Paub meej: Cov kws tshawb fawb ntawm Hokkaido University tau tshawb pom ib txoj hauv kev los ua ke lub teeb-emitting diodes nrog tooj liab-raws li molecular catalysts, tsim txoj hauv kev ruaj khov dua los ua cov tshuaj tseem ceeb uas siv rau hauv kev tsim tshuaj thiab optoelectronic. muaj peev xwm siv tau.
Nyob rau hauv ib daim ntawv luam tawm nyob rau hauv phau ntawv Journal of the American Chemical Society, cov kws tshawb fawb tau piav qhia tias lawv cov txheej txheem npaj tau tso cai rau lawv ua qhov hu ua cross-coupling reactions, uas ob lub molecules txuas nrog cov pa roj carbon monoxide. Qhov no yog ib qho ntawm cov kev siv ntau tshaj plaws ntawm cov tshuaj tiv thaiv thiab yog qhov tseem ceeb hauv kev ua rau feem ntau ntawm cov khoom siv tshuaj siv niaj hnub no.
Cov kws tshawb fawb tau hais tias kev siv tooj liab los ua ib qho kev cuam tshuam rau kev sib txuas ntawm cov tshuaj tiv thaiv kev sib txuas yog qhov ua tiav ntawm kev ruaj ntseg, vim tias cov tshuaj tiv thaiv feem ntau yog nyob ntawm kev siv cov hlau zoo xws li palladium.
Txoj hauv kev tshiab no kuj suav hais tias yog qhov zoo vim tias cov hlau tooj liab hauv molecular catalyst nws tus kheej absorbs xiav lub teeb, tsis tas yuav tsum muaj qhov sib cais lub teeb-absorbing compound sab nraum catalyst. Qhov no ua rau synthesis tsis tsuas yog pheej yig dua thiab yooj yim dua, tab sis kuj yooj yim rau kev tswj vim tias muaj tsawg dua qhov txav.
Lub teeb xiav ua lub luag haujlwm tseem ceeb hauv kev ua kom tooj liab-raws li catalysts. Kev suav cov theoretical qhia tau hais tias qhov teeb pom kev zoo no ua rau cov hluav taws xob txav los ntawm atoms ntawm cov hlau tooj liab mus rau ib qho kev sib txuas ntawm subunit ntawm molecular catalyst. Lub xeev zoo siab no cais cov nqi thiab ua rau cov catalyst ntau reactive, yog li cov kws tshawb fawb tau siv nws los ua cov kev sib txuas sib txuas los tsim cov acyl pawg, uas muaj txiaj ntsig zoo rau kev sib xyaw tshuaj thiab cov khoom siv hluav taws xob.
Ib qho tseem ceeb ntawm txoj hauv kev no yog qhov asymmetry ntawm acyl pawg tsim. Qhov no txhais tau hais tias ib qho ntawm ob qhov ua tau daim iav-daim duab versions ntawm cov khoom molecule yog xaiv tsim, ib qho khoom tsim nyog rau kev tsim tshuaj tshiab.
Kev ua raws li txoj kev tshiab no yuav tsum tau ua ob qho tib si txuag cov nqi thiab ua kom muaj kev ruaj ntseg ntawm kev tsim khoom ntawm ntau cov tebchaw uas muaj peev xwm siv tau hauv tshuaj thiab khoom siv hluav taws xob.
Yusuke Masuda, tus thawj coj ntawm txoj kev tshawb fawb, tau hais hauv tsab ntawv tshaj tawm: "Qhov kev sib txuas lus no yog kev ua tiav vim tias nws muab ob yam khoom siv tau yooj yim, xiav LED teeb thiab tooj liab, kom ua tiav ib txoj hauv kev uas tsis muaj ua ntej. Kev sib txuas lus. uas siv lub ntiaj teb cov peev txheej ntau los tsim cov ntsiab lus tseem ceeb yog qhov tseem ceeb rau txoj kev loj hlob ntawm tib neeg, Kuv kwv yees tias qhov kev txhim kho no yuav dhau los ua ib qho tseem ceeb hauv kev tsim cov txheej txheem molecular synthesis.
