Zogulitsa

Mndandanda wa bimetallic complexes wa ruthenium(II) womangidwa ndi heterocyclic ligands wopangidwa ndi condensation ya 4,5-diazafluoren-9-imodzi ndi diamines zosiyanasiyana, hydrazine, 1,4-phenylenediamine, benzidine, ndi 4,4'-methylenedianiline, zimabweretsa malo azitsulo olekanitsidwa ndi maulendo osiyanasiyana.Macomplexes amapangitsa kuyamwa kwachitsulo-to-ligand-transfer-transfer m'chigawo cha 450 nm cha mawonekedwe owoneka ndi intraligand pi --> ma kusintha kwa 300 nm dera la ultraviolet spectrum.Malo a ruthenium(II) amapangidwa ndi okosijeni munjira ziwiri zotalikirana ndi ma elekitironi imodzi pazabwino kwambiri kuposa za Ru(bpy)(3)(2+).Ma bridging ligand amachepetsedwa ndi njira ziwiri zolumikizana kwambiri za elekitironi imodzi pazabwino kwambiri kuposa zochepetsera zolumikizana za bipyridine ligand (pafupifupi -1.30 V), ngakhale diazafluorene=NN=diazafluorene bridging ligand imachepetsedwa mosinthika mu ma elekitironi awiri amodzi. masitepe pa E(1/2) milingo ya -0.29 ndi -0.52 V. Pambuyo pa kuyeretsedwa mwa kutulutsa zinthu zoyera pazanja la gel osakaniza ndi 0.10 M NH(4)PF(6) mu methanol, kutulutsa kumachitika kokha mu matrix agalasi pa 77 K ndi kutentha kochepa mu njira.Nthawi yotulutsa mpweya pa 77 K mu 4: 1 ethanol: galasi la methanol ndi 5 +/- 1 & mgr;s.Kafukufuku wosiyanasiyana wa kutentha kwa moyo wonse akuwonetsa kukhalapo kwa malo otsika ndi DeltaE = pafupifupi 1500 cm (-) (1), ndipo kuwonjezereka kwa kutentha kwa chipinda kumasonyeza kuti nthawi zonse zotulutsa mpweya zimakhala mu subnanosecond range.