Studies of lambert's reaction: The formation of [Mn2(CO)8(μ-AsR2)2] complexes from tertiary arsines and [Mn2(CO)10] at high temperatures
作者:Henry Ashton、Brídín Brady、A.R. Manning
DOI:10.1016/s0022-328x(00)81030-x
日期:1981.11
or As) are inert, the normal photochemical or thermal reaction of tertiary phosphines or arsines, L, with [Mn2(CO)10] is CO substitution with the formation of [Mn2(CO)8(L)2] derivatives (I). At elevated temperatures some triarylarsines, R3As, undergo Lambert's reaction with ligand fragmentation to give [Mn2(CO)8(μ-AsR2)2] complexes (II) (R = Ph, p-MeOC6H4, p-FC6H4, or p-CIC6H4) even though, in the absence
虽然非常大体积配体例如(ø -MeC 6 ħ 4)3 E或(μ-C 10 H ^ 7)3 E(E = P或As)是惰性的,正常的光化学或叔膦或胂,L的热反应, [Mn 2(CO)10 ]与[Mn 2(CO)8(L)2 ]衍生物(I)的形成中的CO被取代。在升高的温度下的一些triarylarsines,R 3如,经历Lambert的反应与配体碎片,得到[锰2(CO)8(μ-ASR 2)2即使没有[Mn 2(CO)10 ] R 3 As的情况,也可以使用]配合物(II)(R = Ph,p -MeOC 6 H 4,p -FC 6 H 4或p- CIC 6 H 4)。在相同条件下稳定。(p -Me 2 NC 6 H 4)3- As表现出优异的行为,形成I型产物;通过一些HN(C 6 H 4)2由于失去了非芳基R = PhCH 2,环-C 6 H 11或MeO而得到II型产物的AsR ;和通过pH(α-C