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Lithium cation endohedral fullerene


Lithium endohedral fullerene is a novel nanomaterial which has very high ionic conductivity unlike empty fullerene. From this feature, it is expected to be used widely including dye-sensitized and organic solar cells.
Wako Pure Chemical sells products made by Idea International Co. Ltd., which is the world’s first to succeed in their mass production.


INDEX

  1. Features
  2. Product List
  3. Application1
  4. Application2
  5. Application3
  6. References
  7. Link to Leaflet Link to Leaflet (476 KB/2p)
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Manufactured by:
Manufacturer: Idea International, Co. Ltd.


1. Features

  • World’s first mass production
  • High ionic conductivity
  • Performance report attached
  • Useful for novel functional materials


2. Product List

Product Name Package Size Wako Catalog No. Idea's Product No.
[Li@C60]PF6- Salt, powder   1.3 mg 384-02652 001D04TE1
3 mg 001D04TE2
NEW  [Li@C60]PF6- Salt, single crystals   3 mg  001 F 01 
NEW    [Li@C60]NTf2- Salt, powder    2 mg  001 F 01 


Product Name Package Size Wako Catalog No. Idea's Product No. Storage Condition
Li+@C60(PF6)- Salt 10 mg 386-02651 001D04 Keep at -20°C.
20 mg 382-02653
30 mg 380-02654
40 mg 386-02656
50 mg 388-02655
Li+@C60/C60 (Cluster) 500 mg 389-02641 001B01
1000 mg 385-02643
Li+@C60/C60/Li (Cluster) 500 mg 383-02661 TS001
1000 mg 389-02663

*Performance report and TOF-MS chart will be provided only for Li+C60(PF6)- salt and Li+@C60/C60 cluster.

3. Application1

A new solution to highly efficient solar cells.     Li+@C60 provides long lasting separation of electron charge.

Application 1



Enhanced photoelectrochemical performance of complete photovoltaic cells of Li+@C60-sulphonated porphyrin supramolecular nanoclusters.
A photoelectrochemical solar cell composed of supramolecular nanoclusters of lithium encapsulated fullerene and zinc sulphonated meso-tetraphenylporphyrin exhibits significant enhancement in the photoelectrochemical performance as compared with the reference system containing only a single component.


Reference:
  1. K. Ohkubo, Y. Kawashima and S. Fukuzumi, "Strong supramolecular binding of Li+@C60 with sulfonated meso-tetraphenylporphyrins and long-lived photoinduced charge separation", Chem. Commun., 48, 4314-6 (2012)
  2. K. Ohkubo, Y. Kawashima, H. Sakai, T. Hasobe and S. Fukuzumi, "Enhanced photoelectrochemical performance of composite photovoltaic cells of Li+@C60–sulphonated porphyrin supramolecular nanoclusters ", Chem. Commun., 49, 4474-6 (2013)


4. Application2

Li+ ion is encapsulated inside C60 (Fullerene).   Li+ moves in response to electric field outside.

Application 2



Li+@C60 has a property like cation. It reacts with various anions and forms such salt as SbCl6- and PF6-. A location of Li+is dependent on its counterpart(s), i.e. types and locations of the anions. This property can be utilized for sensors and switches.
Reference:
  1. S. Aoyagi, E. Nishibori, H. Sawa, K. Sugimoto, et al., "A layered ionic crystal of polar Li@C60 superatoms", Nature Chemistry, 2, 678-83 (2010).
  2. S. Aoyagi, Y. Sado, E. Nishibori, et al., "Rock-Salt-Type Crystal of Thermally Contracted C60 with Encapsulated Lithium Cation", Angewandte Chemie International Edition,, 51, 3377-81 (2012)


5. Application3

High ion mobility in organic slovent. Li+@C60-, electrically neutral, is produced.
Application 3 Because Li+@C60 (PF6)-) shows higher mobility inside organic solvent than nBU4N+ (PF6)-, which is widely used as electrolyte, many electro-chemical applications of Li+@C60 are envisaged. In fact, Li+@C60-, radical anion, is selectively produced, when Li+@C60(PF6)- is reduced.
Reference:
  1. H. Ueno, K. Kokubo, Y. Nakamura, K. Ohikubo, et al., "Ionic conductivity of [Li+@C60](PF6-) in organic solvents and its electrochemical reduction to Li+@C60·- ", Chem. Commun., 49, 7376-8 (2013).



6. References

Photoinduced electron transfer
n-type semiconductor; molecular switch; ferroelectric sheet; artificial photosynthesis; super conductivity; ionic conductivity; unique electrolyte; molecular memory
  1. S. Aoyagi et. al., A layered ionic crystal of polar Li+@C60 superatoms, Nature Chemistry, 2010, 2 (8), 678-83.
  2. K. Ohkubo, Y. Kawashima and S. Fukuzumi, Strong supramolecular binding of Li+@C60 with sulfonated meso-tetraphenylporphyrins and long-lived photoinduced charge separation, Chem. Commun., 2012, 48 (36), 4314-6.
  3. S. Aoyagi, et al., Rock-Salt-Type Crystal of Thermally Contracted C60 with Encapsulated Lithium Cation, Angewandte Chemie International Edition., 2012, 51 (14), 3377-81
  4. K. Kokubo, et al., Synthesis of a lithium-encapsulated fullerene and the effect of the internal lithium cation on its aggregation behavior, NANO RESEARCH, 2012, 5 (8), 558-64.
  5. K. Ohkubo et. al., Enhanced Photoinduced Electron-Transfer Reduction of Li+@C60 in Comparison with C60, J. Phys. Chem. A, 2012, 116(36), 8942-8.
  6. K. Yokoo, K. Kawachi, H. Tobita, et. al., Preparation of endohedral fullerene containing lithium (Li@C60) and isolation as pure hexafluorophosphate salt ([Li+@C60][PF6]), RSC Advances, 2012, 2, 10624-10631.
  7. Nathan L. Bill et al., Porphyrins Fused with Strongly Electron-Donating 1,3-Dithiol-2- ylidene Moieties: Redox Control by Metal Cation Complexation and Anion Binding, J. Am. Chem. Soc., 2013, 135, 10852-62.
  8. T. Kamimura, K. Ohkubo, et al., Submillisecond-lived photoinduced charge separation in inclusion complexes composed of Li+@C60 and cyclic porphyrin dimers, Chemical Science, 2013, 4, 1451–1461.
  9. H. Ueno, K. Kokubo, et al., Synthesis of a new class of fullerene derivative Li+@C60O-(OH)7 as a "cation-encapsulated anion nanoparticle", Nanoscale, 2013, 5, 2317-21.
  10. H. Ueno, K. Kokubo, Y. Nakamura, K. Ohkubo, et al., Ionic conductivity of [Li+@C60](PF6–) in organic solvents and its electrochemical reduction to Li+@C60•–, Chem. Commun., 2013, 49, 7376-8.
  11. Y. Kawashima et. al., Small Reorganization Energies of Photoinduced Electron Transfer between Spherical Fullerenes, J. Phys. Chem. A., 2013, 117, 6737-43.
  12. Y. Kawashima et al., Electron Transfer in Supramolecular Complex of Zinc Chlorin Carboxylate Anion with Li+@C60 Affording the Long-Lived Charge-Separated State, J. Phys. Chem. C, 2013, 117, 21166−77.
Photovoltaltaic property
organic photovoltaic; organic solar cell; charge-storage device; solar energy; conversion
  1. Y. Matsuo et al., Covalently Chemical Modification of Lithium Ion-Encapsulated Fullerene: Synthesis and Characterization of [Li+@PCBM]PF6, Org. Lett., 2012, 14 (14), 3784–7.
  2. S. Fukuzumi, K. Ohkubo, et al., Ion-Controlled On-Off Switch of Electron Transfer from Tetrathiafulvalene Calix[4]pyrroles to Li+@C60, J. Am. Chem. Soc., 2011, 133 (40),15938-41.
  3. Y. Kawashima, K. Ohkubo and S. Fukuzumi, Enhanced Photoinduced Electron-Transfer Reduction of Li+@C60 in Comparison with C60, J. Phys. Chem. A, 2012, 116 (36), 8942-8.
  4. K.Ohkubo et al., Enhanced photoelectrochemical performance of composite photovoltaic cells of Li+@C60·- sulphonated porphyrin supramolecular nanoclusters , Chem. Commun., 2013, 49, 4474-4476.
  5. S. Fukuzumi et al., Long-lived photoinduced charge separation for solar cell applications in supremolecular complexes of multi-metalloporphyrins and fullerenes, Dalton Trans., 2013, 42, 15846-58.
  6. T. Watanabe et al., Iridium and Platinum Complexes of Li+@C60, Organomtallics, 2014, 33 (3), 608-11.
  7. Y. Noguchi et al., First-Principles Investigation on Structural and Optical Properties of M+@C60 (Where M = H, Li, Na, and K), J. Phys. Chem. C, 2013, 117 (29), 15362–8.
  8. H. Kawakami, H. Okada and Y. Matsuo, Efficient Diels–Alder Addition of Cyclopentadiene to Lithium Ion Encapsulated [60]Fullerene, Org. Lett., 2013, 15 (17), 4466–9.
  9. Y. Matsuo, et al., Anion Exchange of Li+@C60 Salt for Improved Solubility, Fullerenes, Nanotubes and Carbon Nanostructures, 2014, 22 (1-3), 262-8.
Biomedical & Pharmaceutical
⇒ in progress
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