Nitrido-ruthenium(vi) and -osmium(vi) complexes of multianionic chelating (N, O) ligands. Reactions with nucleophiles, electrophiles and oxidizing agents†
Abstract
This account presents the diverse reactivity of nitridoruthenium(VI) complexes with nucleophilic, electrophilic and oxidizing agents. [RuVI(N)(L1)Cl]
(1)
[H2L1
= Ru moiety with the measured Ru–N distances being 1.661(5) and 1.837(5)
Å. Complex 1 reacted with dmf to give [RuIII(HL1)(dmf)Cl2]
(5) in 17% yield. Excess (Me3O)BF4 reacted with 1 to give a dinuclear μ-OH ruthenium complex, [Ru2(N)2(L1)2(OH)]PF6
(6). The measured Ru–O(OH) distance is 1.984(3)
Å and the average Ru–O–Ru angle was found to be 100.4(2)°. Other nitrido-metal complexes, [n-Bu4N][MVI(N)(L)]
[L = L2 and L3; M = Os and Ru; H4L2
= 1,2-dichloro-4,5-bis(2-hydroxybenzamido)benzene, H4L3
=
N group remained intact.