Compound 5 was synthesized following a slightly modified literature method [17]. Into a Schlenk tube equipped with a magnetic bar, a solution of complex 1 (1.110 g; 3.28 mmol) in CH
(10 mL) was added and 4-methoxybenzylamine (0.45 mL; 3.45 mmol) was added dropwise while stirring the mixture.