in further solvent(s) Ni complex (0.5 g) and oleylamine (5 ml) heated (150°C, 60 min) under Ar; injected into PPh3 (5 g) (245°C); aged (235°C, 40min); cooled to room temp.; pptd. with EtOH; washed with EtOH; dried (100°C); TEM;