Ibicuruzwa

Urukurikirane rwa bimetallic complexes ya ruthenium (II) yahujwe na ligand ya heterocyclic yakozwe na kondegene ya 4,5-diazafluoren-9-imwe ifite diamine zitandukanye, hydrazine, 1,4-fenylenediamine, benzidine, na 4,4'-methylenedianiline, ibisubizo mubyuma bitandukanijwe nintera zitandukanye.Ibigo bitanga ibyuma-kuri-ligand kwishyurwa-kwimura ibintu mu karere ka 450 nm mukarere kagaragara hamwe na intraligand pi -> pi ihinduka mukarere ka 300 nm mukarere ka ultraviolet.Ibigo bya ruthenium (II) bihindurwamo okiside mubice bibiri byegeranye byegeranye na electron imwe mubishobora kuba byiza kuruta ibya Ru (bpy) (3) (2+).Ikiraro cya kiraro kigabanywa ninzira ebyiri zegeranye zegeranye na electron imwe mubishobora kuba byiza kuruta ibyo kugabanya ligand ya bipyridine ihujwe (hafi -1.30 V), nubwo diazafluorene = NN = diazafluorene ikiraro cya ligand yagabanutse kuburyo budasubirwaho mumashanyarazi abiri ya electron imwe intambwe kuri E (1/2) agaciro ka -0.29 na -0.52 V. Nyuma yo kwezwa mugukuraho ibice bisukuye hejuru yinkingi ya silika gel hamwe nuburinganire butandukanye bwa 0.10 M NH (4) PF (6) muri methanol, imyuka iba gusa muri matrix yikirahure kuri 77 K no mubushyuhe buke mubisubizo.Igihe cyoherezwa mu kirere kuri 77 K muri 4: 1 Ethanol: ikirahuri cya methanol ni 5 +/- 1 & mgr; s.Impinduka-yubushyuhe bwimyuka yubuzima bwubuzima bugaragaza ko hariho leta ibeshya hamwe na DeltaE = hafi cm 1500 (-) (1), kandi guhererekanya ubushyuhe bwicyumba byerekana ko imyuka ihumanya ikirere iri murwego rwa subnanosekond.