Coordination and reactivity of functionalized fullerenes, open-cage fullerenes, and endohedral metallofullerenes by organometallic complexes

Yeh, Wen-Yann

doi:10.1016/j.jorganchem.2014.09.039

Cited by 15 publications

(8 citation statements)

References 101 publications

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“…The formation of MMK-9 was accompanied by the production of two other compounds, one an isomer of MMK-9 , but MMK-9 was the major product. Previous studies of this molecule have monitored the incorporation of an H 2 /HD mixture into MMK-9 by 1 H NMR spectroscopy and have examined its reaction with Ru 3 (CO) 12 . , The reaction with Ru 3 (CO) 12 is complex and involves coordination of ruthenium atoms to the oxygen atoms of MMK-9 as well as the formation of a C–C bond between the adjacent carbon atoms to reduce the size of the orifice. Additionally, reactions that lead to the expansion of the opening in MMK-9 have been examined. , In this report, we structurally characterize MMK-9 as well as two open-cage adducts with silver salts.…”

Section: Introductionmentioning

confidence: 99%

Silver(I)-Mediated Modification, Dimerization, and Polymerization of an Open-Cage Fullerene

et al. 2016

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The reactions of the open-cage fullerene, MMK-9, with an open 12-membered ring on its surface and silver(I) salts have been examined. The structure of MMK-9 itself has been determined by single-crystal X-ray diffraction. MMK-9 reacts with silver trifluoroacetate in air to form the dimer, {MMK-9(OCH)Ag(AgOCCF)}. Remarkably, five MeO groups have added to the surface of the open cage in a pattern that surrounds a pentagon immediately adjacent to the opening in the cage. Dioxygen has been implicated as the oxidant in this unusual addition of five groups to the open cage. Two silver ions connected to each other by a short argentophillic interaction reside at the core of the centrosymmetric dimer. The reaction of silver nitrate with MMK-9 yields the crystalline polymer, [{MMK-9(OCH)Ag(AgOCH)}·HO]. This polymer consists of dimeric {MMK-9(OCH)Ag} units that are connected into strands through silver ions, which are chelated by the amine functions of one open cage and bound in η-fashion to a pair of carbon atoms on an adjacent open cage.

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Section: Introductionmentioning

confidence: 99%

Silver(I)-Mediated Modification, Dimerization, and Polymerization of an Open-Cage Fullerene

et al. 2016

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“…Last but not least, endohedral fullerenes exist because of the fact that they are hollow; so they have the potential application of confining or protecting molecules, thus acting as carriers or stabilizers. Particularly, those with metallic atoms inside them-endohedral metallofullerenes-have been attractive for chemistry, physics and interdisciplinary areas, such as materials and biological sciences [22][23][24][25].…”

Section: Types Of Fullerenesmentioning

confidence: 99%

Reactivity Indexes and Structure of Fullerenes

Jiménez¹,

Tenorio²,

AlejandroHernández-Velázquez³

et al. 2018

Fullerenes and Relative Materials - Properties and Applications

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The discovery of fullerenes and their production in measurable quantities launched many studies about their reactivity and possible applications. Their peculiar structure opened possibilities for their study, initially replacing carbon atoms with alternative atoms. The surface also offers the possibility of attaching several species and the interior of their hollow structure represents a challenge because of the possibility of confining elements or molecules that may become less stable when attached to the exterior of the cage. These modifications may considerably affect both chemical and physical properties. In this chapter, we propose the encapsulation of 3-10 nitrogen atoms as aggregates inside the C 70 cage. We also study the structures and reactivity indexes and the stabilization conferred as a result of being part of the fullerene. These aggregates are mainly of interest because of their possible application as energetic materials.

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“…[13,14] The unique chemical and physicalp roperties of fullerene C 60 , [15][16][17][18][19][20] such as its highly effi-cient electron acceptor character and electronic absorption throughout the UV/Vis spectral region, have aroused considerable interest in its application in intramolecular PET reactions, [21][22][23][24] and make hybrid systems containing both at ransition-metal complex and af ullerene moiety to be of great interest. [25][26][27] In particular, chiral metal complexesp rovide ap romising tooli no rganometallic chemistry,d ue to their pertinence to enantioselective reactions and catalytic applicationsi no rganic synthesis. [28,29] Ar ecent discoveryo ff ullerene C 60 half-sandwich transition-metal hybrid complexes with chiral centers, both on ligand and metal species, opens new opportunities not only for metal catalysis but also for PET reactions.…”

Section: Introductionmentioning

confidence: 99%

Stereocontrolled Photoinduced Electron Transfer in Metal‐Fullerene Hybrids

Stasyuk

Filippone

et al. 2018

Chemistry A European J

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Photoinduced electron transfer in transition-metal complexes linked to a fullerene moiety is of increasing interest. Recently, several stereoisomers of an Ir-complex exhibiting configurational stability at metal center, which does not undergo epimerization have been synthesized (Angew. Chem. Int. Ed. 2017, 56, 2136). The presence of multiple electron donor and acceptor sites located at opposite ends with respect to the metallic center creates the prerequisites for the formation of entirely different charge transfer (CT) states. Here we report the results of quantum mechanical calculations and detailed analysis of excited-state properties for all stereoisomers of the junction. We found that the stereoisomers demonstrate clearly different CT properties by photoexcitation. The found photo-stereospecific effects can be used to design new hybrids with a different type of photoinduced CT state, exhibiting dissimilar activity in photocatalysis.

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Coordination and reactivity of functionalized fullerenes, open-cage fullerenes, and endohedral metallofullerenes by organometallic complexes

Cited by 15 publications

References 101 publications

Silver(I)-Mediated Modification, Dimerization, and Polymerization of an Open-Cage Fullerene

Silver(I)-Mediated Modification, Dimerization, and Polymerization of an Open-Cage Fullerene

Reactivity Indexes and Structure of Fullerenes

Stereocontrolled Photoinduced Electron Transfer in Metal‐Fullerene Hybrids

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