found for both anions. The photoanation by Cl− was further studied in alkaline solution and in acid solution containing Co(II). In those solutions the 2Eg state of Cr(III) is quenched. The limiting quantum yield for complete doublet quenching (unquenchable part of the photoreaction) is identical in acid and alkaline solution and has the same value as for the aquation (φnq = 0.14). The quenchable part
研究了在酸性溶液中Cl-和Br-对[Cr(NH3)6] 3+的光化作用。两种阴离子的量子产率均未发现差异。在含Co(II)的碱性溶液和酸性溶液中进一步研究了Cl-的光化作用。在那些溶液中,Cr(III)的2Eg状态被淬灭。完全双峰淬灭(光反应不可淬灭的部分)的极限量子产率在酸和碱溶液中相同,并且具有与
水合相同的值(φnq= 0.14)。光反应的可淬灭部分取决于Co(II)的浓度,与
磷光相同。讨论了可能的光
化学途径。