Towards clustered carbonyl cations [M<sub>3</sub>(CO)<sub>14</sub>]<sup>2+</sup> (M = Ru, Os): the need for innocent deelectronation
作者:Malte Sellin、Christian Friedmann、Maximilian Mayländer、Sabine Richert、Ingo Krossing
DOI:10.1039/d2sc02358j
日期:——
clustered transition metal carbonyl cations, the trimetal dodecacarbonyls M3(CO)12 (M = Ru, Os) were reacted with the oxidant Ag+[WCA]−, but yielded the silver complexes [AgM3(CO)12}2]+[WCA]− (WCA = [Al(ORF)4]−, [FAl(ORF)3}2]−; RF = –OC(CF3)3). Addition of further diiodine I2 to increase the redox potential led for M = Ru non-specifically to divalent mixed iodo-RuII-carbonyl cations. With [NO]+, even
为了获得迄今为止几乎未知的簇状过渡金属羰基阳离子,三金属十二羰基 M 3 (CO) 12 (M = Ru, Os) 与氧化剂 Ag + [WCA] -反应,但产生了银络合物 [Ag M 3 (CO) 12 } 2 ] + [WCA] − (WCA = [Al(OR F ) 4 ] − , [FAl(OR F ) 3 } 2 ] − ; RF = –OC(CF 3 ) 3 ).进一步添加二碘 I 2以增加氧化还原电位,导致 M = Ru 非特异性地形成二价混合碘-Ru II -羰基阳离子。对于[NO] + ,甚至N-O键也被裂解并导致低产率的蝶形羰基络合物阳离子[Ru 4 N(CO) 13 ] + 。 显然,电离M 3 (CO) 12并保留其仅包括M和CO的伪二元组成是困难的,并且无机试剂确实发生了非无害的反应。然而,市售的全卤代蒽衍生物9,10-二氯八氟蒽(蒽Hal )的自由基阳离子是