Catalytic activity of the GaN NW with different doping and sacrificial reagents.

Entry	GaN NW	Sacrificial reagent	Yield/%	Rac- : meso-
1	i-GaN	MeOH	93	1 : 1
2	n-GaN	MeOH	81	1 : 1
3	p-GaN	MeOH	>99	1 : 1
4	p-GaN	H2	No reaction	N/A
5	p-GaN	CH4	No reaction	N/A
6	p-GaN	Water	No reaction	N/A
7	p-GaN	Et3N	>99	1 : 1
8	p-GaN	EtOH	>99	1 : 1
9	p-GaN	Triethanolamine	92	1 : 1
10	p-GaN	MeOH (no GaN)	No reaction	N/A
11	p-GaN	MeOH (in dark)	No reaction	N/A
12	Si(111)	MeOH	No reaction	N/A
13	p-GaN (no Si)	MeOH	97	1 : 1

^aReaction was done by injecting all reactants into a sealed quartz vessel under vacuum. NMR yields were determined by using mesitylene as the internal standard.