Molecular Switches

4
	. .

M

O

O

O

O

O

N

O

OH

N	O	Red	N	OH
(bpy)2 RuII		Ox	(bpy)2 RuII
N			N

2	3
non-luminescent	luminescent

Fe		N	Fe+
N	Ox
		(bpy)2 RuII
(bpy)2 RuII	Red
N		N

4	5
luminescent	non-luminescent

M

M

M

M M

M

F V

M

M

	R2	R2
R1	O	O

S	UV		X
	X	R1
	Vis		S

O	O
O-isomer	C-Isomer
8	9

O

N	O
	O O

			O
	UV	N	O
	Vis		O
		O

non fluorescent	fluorescent
10	11

F V

F V F V

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