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Zhao XK, Zhang YY, Zhao J, Hu HS, Li J. Understanding the Electronic Structure and Chemical Bonding in the 2D Fullerene Monolayer. Inorg Chem 2024; 63:11572-11582. [PMID: 38866714 DOI: 10.1021/acs.inorgchem.4c00811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2024]
Abstract
Recently synthesized two-dimensional (2D) monolayer quasi-hexagonal-phase fullerene (qHPC60) demonstrates excellent thermodynamic stability. Within this monolayer, each fullerene cluster is surrounded by six adjacent C60 cages along an equatorial plane and is connected by both C-C single bonds and [2 + 2] cycloaddition bonds that serve as bridges. In this study, we investigate the stability mechanism of the 2D qHPC60 monolayer by examining the electronic structure and chemical bonding through state-of-the-art theoretical methodologies. Density functional theory (DFT) studies reveal that 2D qHPC60 possesses a moderate direct electronic band gap of 1.46 eV, close to the experimental value (1.6 eV). It is found that the intermolecular bridge bonds play a crucial role in enhancing the charge flow and redistribution among C60 cages, leading to the formation of dual π-aromaticity within the C60 sphere and stabilizing the 2D framework structure. Furthermore, we identify a series of delocalized superatom molecular orbitals (SAMOs) within the 2D qHPC60 monolayer, exhibiting atomic orbital-like behavior and hybridization to form nearly free-electron (NFE) bands with σ/π bonding and σ*/π* antibonding properties. Our findings provide insights into the design and potential applications of NFE bands derived from SAMOs in 2D qHPC60 monolayers.
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Affiliation(s)
- Xiao-Kun Zhao
- Department of Chemistry and Engineering Research Center of Advanced Rare-Earth Materials of Ministry of Education, Tsinghua University, Beijing 100084, China
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yang-Yang Zhang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
- Fundamental Science Center of Rare Earths, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341000, China
| | - Jing Zhao
- Department of Chemistry and Engineering Research Center of Advanced Rare-Earth Materials of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Han-Shi Hu
- Department of Chemistry and Engineering Research Center of Advanced Rare-Earth Materials of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Jun Li
- Department of Chemistry and Engineering Research Center of Advanced Rare-Earth Materials of Ministry of Education, Tsinghua University, Beijing 100084, China
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
- Fundamental Science Center of Rare Earths, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341000, China
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Balch AL, Winkler K. Two-Component Polymeric Materials of Fullerenes and the Transition Metal Complexes: A Bridge between Metal–Organic Frameworks and Conducting Polymers. Chem Rev 2016; 116:3812-82. [DOI: 10.1021/acs.chemrev.5b00553] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Alan L. Balch
- Department
of Chemistry, University of California, Davis, California 95616, United States
| | - Krzysztof Winkler
- Institute
of Chemistry, University of Bialystok, Hurtowa 1, 15-399 Bialystok, Poland
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Kervern G, D'Aléo A, Toupet L, Maury O, Emsley L, Pintacuda G. Crystal-Structure Determination of Powdered Paramagnetic Lanthanide Complexes by Proton NMR Spectroscopy. Angew Chem Int Ed Engl 2009; 48:3082-6. [DOI: 10.1002/anie.200805302] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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4
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Kervern G, D'Aléo A, Toupet L, Maury O, Emsley L, Pintacuda G. Crystal-Structure Determination of Powdered Paramagnetic Lanthanide Complexes by Proton NMR Spectroscopy. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200805302] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Lee D, Struppe J, Elliott DW, Mueller LJ, Titman JJ. Sensitive absorptive refocused scalar correlation NMR spectroscopy in solids. Phys Chem Chem Phys 2009; 11:3547-53. [PMID: 19421560 DOI: 10.1039/b818867j] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new two-dimensional NMR experiment is described which is suitable for obtaining magic angle spinning (MAS) scalar correlation spectra in solids. The new experiment has several advantages, including increased cross peak intensities, coupled with good suppression of the diagonal. Its utility is demonstrated via assignments of the carbon-13 MAS spectra of progesterone at natural abundance and of the polymer phase of 50%-U-13C-CsC60.
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Affiliation(s)
- Daniel Lee
- School of Chemistry, University of Nottingham, University Park, Nottingham, UK NG7 2RD
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Affiliation(s)
- Francesco Giacalone
- Dipartimento di Chimica Organica "E. Paterno", Università degli Studi di Palermo, Parco d'Orleans II, I-90128 Palermo, Italy.
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7
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Grasso G, de Swiet TM, Titman JJ. Electronic Structure of the Polymer Phase of CsC60: Refocused INADEQUATE Experiments. J Phys Chem B 2002. [DOI: 10.1021/jp026093j] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Giuseppe Grasso
- School of Chemistry, University of Nottingham, University Park, Nottingham, UK
| | - Thomas M. de Swiet
- School of Chemistry, University of Nottingham, University Park, Nottingham, UK
| | - Jeremy J. Titman
- School of Chemistry, University of Nottingham, University Park, Nottingham, UK
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Verberck B, Michel KH, Nikolaev AV. Crystal structures of polymerized fullerides AC60, A=K, Rb, Cs, and alkali-mediated interactions. J Chem Phys 2002. [DOI: 10.1063/1.1475745] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Hönnerscheid A, van Wüllen L, Jansen M, Rahmer J, Mehring M. Dimer-formation in the bis(arene)chromium fulleride Cr(C7H8)2 C60. J Chem Phys 2001. [DOI: 10.1063/1.1404989] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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11
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Hughes E, Jordan J, Gullion T. Structural Characterization of the [Cs(p-tert-butylcalix[4]arene −H)(MeCN)] Guest−Host System by 13C-133Cs REDOR NMR. J Phys Chem B 2001. [DOI: 10.1021/jp004559x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Eric Hughes
- Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506
| | - Jason Jordan
- Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506
| | - Terry Gullion
- Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506
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Heindrichs AS, Geen H, Titman JJ. MAS double-quantum filtered dipolar shift correlation spectroscopy. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2000; 147:68-77. [PMID: 11042048 DOI: 10.1006/jmre.2000.2161] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A carbon-13 magic angle spinning double-quantum filtered dipolar shift correlation NMR experiment which can be used to establish through-space connectivities in solids is analyzed. The main advantage of the double-quantum filtered approach is the removal of intensity arising from natural abundance background signals. The variation in intensity of the cross and diagonal peaks observed in the two-dimensional spectrum as a function of mixing time is investigated experimentally for model systems. The observed behavior is compared with analytical expressions derived for three coupled spins, as well as with simulations based on average Hamiltonian theory. Copyright 2000 Academic Press.
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Affiliation(s)
- AS Heindrichs
- School of Physics and Astronomy, School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, United Kingdom
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Michel KH, Nikolaev AV. Theory of distinct crystal structures of polymerized fullerides AC60, A = K, Rb, Cs: the specific role of alkalis. PHYSICAL REVIEW LETTERS 2000; 85:3197-3200. [PMID: 11019300 DOI: 10.1103/physrevlett.85.3197] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2000] [Indexed: 05/23/2023]
Abstract
The polymer phases of AC60 form distinct crystal structures characterized by the mutual orientations of the (C( -)(60))(n) chains. We show that the direct electric quadrupole interaction between chains always favors the orthorhombic structure Pmnn with alternating chain orientations. However, the specific quadrupolar polarizability of the alkali metal ions leads to an indirect interchain coupling which favors the monoclinic structure I2/m with equal chain orientations. The competition between direct and indirect interactions explains the structural difference between KC60 and RbC60, CsC60.
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Affiliation(s)
- K H Michel
- Department of Physics, University of Antwerp, UIA, 2610 Antwerpen, Belgium
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