Abstract
A heteroleptic [Pd2L2L'2]4+ coordination cage containing a photoswitchable azobenzene-derived ligand catalyzes the Michael addition reaction between methyl vinyl ketone and benzoyl nitromethane within its cavity. The correspond-ing homoleptic cages are catalytically inactive. The heteroleptic cage can be reversibly disassembled and reassembled using 530 nm light and 405 nm light, respectively, allowing catalysis within the cage to be switched ON and OFF at will.
Supplementary materials
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S2. Synthesis of photoswitchable ligand 1
Description
S2. Synthesis of photoswitchable ligand 1
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S3. Photoswitching properties of ligand 1
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S3. Photoswitching properties of ligand 1
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S4. Synthesis of palladium(II) complexes
Description
S4. Synthesis of palladium(II) complexes
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S5. Preliminary guest binding studies between [Pd2L4](BArF)4 in DCM
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S5. Preliminary guest binding studies between [Pd2L4](BArF)4 in DCM
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S6. Synthesis and characterization of homoleptic cage [Pd2(E-1)4]4+
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S6. Synthesis and characterization of homoleptic cage [Pd2(E-1)4]4+
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S7. Photoswitching of [Pd2(E-1)4]4+
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S7. Photoswitching of [Pd2(E-1)4]4+
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S8. Synthesis and characterization of ligand 2
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S8. Synthesis and characterization of ligand 2
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S9. Synthesis and characterization of homoleptic species [Pd4(2)8]8+ and [Pd3(2)6]6+
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S9. Synthesis and characterization of homoleptic species [Pd4(2)8]8+ and [Pd3(2)6]6+
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S10. Synthesis and characterization of heteroleptic cage [Pd2(E-1)2(2)2]4+
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S10. Synthesis and characterization of heteroleptic cage [Pd2(E-1)2(2)2]4+
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S11. Photoswitching of [Pd2(E-1)2(2)2](BF4)4
Description
S11. Photoswitching of [Pd2(E-1)2(2)2](BF4)4
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S12. Controlling catalysis with light using [Pd2(E-1)2(2)2](BArF)4 in DCMMeNO2 (9 1)
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S12. Controlling catalysis with light using [Pd2(E-1)2(2)2](BArF)4 in DCMMeNO2 (9 1)
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S13. The effect of solvent on self-assembly
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S13. The effect of solvent on self-assembly
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S14. The effect of 3-chloropyridine (Py) on the self-assembly of [Pd2(E-1)2(2)2](BArF)4 in DCMMeCN (101)
Description
S14. The effect of 3-chloropyridine (Py) on the self-assembly of [Pd2(E-1)2(2)2](BArF)4 in DCMMeCN (101)
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S15. Catalysing the Michael addition between methyl vinyl ketone and benzoyl nitromethane
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S15. Catalysing the Michael addition between methyl vinyl ketone and benzoyl nitromethane
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S16. Controlling catalysis with light using [Pd2(E-1)2(2)2](BArF)4 in DCM:MeCN (11:1)
Description
S16. Controlling catalysis with light using [Pd2(E-1)2(2)2](BArF)4 in DCM:MeCN (11:1)
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Supporting Information
Description
All the synthetic details, spectroscopic data and associated information.
Minor corrections to errors in experimental procedures.
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