1
|
Konarev DV, Khasanov SS, Otsuka A, Yamochi H, Saito G, Lyubovskaya RN. Effect of the Cooling Rate on Dimerization of C60•– in Fullerene Salt (DMI+)2·(C60•–)·{Cd(Et2NCS2)2I–}. Inorg Chem 2012; 51:3420-6. [DOI: 10.1021/ic201732t] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dmitri V. Konarev
- Institute of Problems of Chemical Physics RAS, Chernogolovka, Moscow region,
142432 Russia
| | - Salavat S. Khasanov
- Institute of Solid State Physics RAS, Chernogolovka, Moscow region, 142432
Russia
| | - Akihiro Otsuka
- Research Center for
Low Temperature
and Materials Sciences, Kyoto University, Sakyo-ku, Kyoto, 606-8501 Japan
| | - Hideki Yamochi
- Research Center for
Low Temperature
and Materials Sciences, Kyoto University, Sakyo-ku, Kyoto, 606-8501 Japan
| | - Gunzi Saito
- Research Institute, Meijo University,
1-501 Shiogamaguchi, Tempaku-ku,
Nagoya, 468-8502 Japan
| | - Rimma N. Lyubovskaya
- Institute of Problems of Chemical Physics RAS, Chernogolovka, Moscow region,
142432 Russia
| |
Collapse
|
2
|
Kozhemyakina NV, Amsharov KY, Nuss J, Jansen M. Synthesis and structure analysis of (K[DB18 C6])4(C60)5·12THF containing C60 in three different bonding states. Chemistry 2011; 17:1798-805. [PMID: 21274930 DOI: 10.1002/chem.201002731] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2010] [Indexed: 11/12/2022]
Abstract
A new fulleride, (K[DB18C6])(4)(C(60))(5)·12THF, was prepared in solution using the "break-and-seal" approach by reacting potassium, fullerene, and dibenzo[18]crown-6 in tetrahydrofuran. Single crystals were grown from solution by the modified "temperature difference method". X-ray analysis was performed revealing a reversible phase transition occurring on cooling. Three different crystal structures of the title compound at different temperatures of data acquisition are addressed in detail: the "high-temperature phase" at 225 K (C2, Z=2, a=49.055(1), b=15.075(3), c=18.312(4) Å, β=97.89(3)°), the "transitional phase" at 175 K (C2 m, Z=2, a=48.436(5), b=15.128(1), c=18.280(2) Å, β=97.90(1)°), and the "low-temperature phase" at 125 K (Cc, Z=4, a=56.239(1), b=15.112(3), c=36.425(7) Å, β=121.99(1)°). On cooling, partial radical recombination of C(60)(·-) into the (C(60))(2)(2-) dimeric dianion occurs; this is first time that the fully ordered dimer has been observed. Further cooling leads to formation of a superstructure with doubled cell volume in a different space group. Below 125 K, C(60) exists in the structure in three different bonding states: in the form of C(60)(·-) radical ions, (C(60))(2)(2-) dianions, and neutral C(60), this being without precedent in the fullerene chemistry, as well. Experimental observations of one conformation exclusively of the fullerene dimer in the crystal structure are further explained on the basis of DFT calculations considering charge distribution patterns. Temperature-dependent measurements of magnetic susceptibility at different magnetic fields confirm the phase transition occurring at about 220 K as observed crystallographically, and enable for unambiguous charge assignment to the different C(60) species in the title fulleride.
Collapse
Affiliation(s)
- Nina V Kozhemyakina
- Max Planck Institute for Solid State Research, Heisenbergstr. 1, 70569 Stuttgart, Germany
| | | | | | | |
Collapse
|
3
|
Konarev DV, Khasanov SS, Otsuka A, Saito G, Lyubovskaya RN. Ionic fullerene complex (DMI+)3·(C60˙−)·(I−)2 with 2H-hexagonal fullerene packing and 3-D DMI+-I− network. CrystEngComm 2009. [DOI: 10.1039/b812803k] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
4
|
Macovez R, Goldoni A, Petaccia L, Marenne I, Brühwiler PA, Rudolf P. Reversible phase transformation and doubly charged anions at the surface of simple cubic RbC60. PHYSICAL REVIEW LETTERS 2008; 101:236403. [PMID: 19113572 DOI: 10.1103/physrevlett.101.236403] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2008] [Indexed: 05/27/2023]
Abstract
The simple cubic phase of a RbC60 thin film has been studied using photoelectron spectroscopy. The simple cubic-to-dimer transition is found to be reversible at the film surface. A sharp Fermi edge is observed and a lower limit of 0.5 eV is found for the surface Hubbard U, pointing to a strongly correlated metallic character of thin-film simple cubic RbC60. A molecular charge state is identified in the valence band and core-level photoemission spectra which arises from C60(2-) anions and contributes to the spectral intensity at the Fermi level.
Collapse
Affiliation(s)
- Roberto Macovez
- Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
| | | | | | | | | | | |
Collapse
|
5
|
Bonsova DY, Mavrin AA, Sidorov LN, Skokan EV, Edwards JG, Spiridonov FM, Borshchevsky AY, Ioffee IN. High Temperature Vaporization and Thermodynamic Properties of the Potassium - C60Phases. ACTA ACUST UNITED AC 2008. [DOI: 10.1080/10641229809350219] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
6
|
|
7
|
Konarev DV, Khasanov SS, Saito G, Otsuka A, Lyubovskaya RN. Ionic and Neutral C60 Complexes with Coordination Assemblies of Metal Tetraphenylporphyrins, MIITPP2·DMP (M = Mn, Zn). Coexistence of (C60-)2 Dimers Bonded by One and Two Single Bonds in the Same Compound. Inorg Chem 2007; 46:7601-9. [PMID: 17685507 DOI: 10.1021/ic061628z] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Coordination assemblies of metal tetraphenylporphyrins, MIITPP2.DMP (M=Mn, Zn) were shown to form ionic multicomponent and neutral complexes with fullerene, {(MnIITPP)2.DMP}.(C60-)2.(DMETEP+)2.(C6H4Cl2)5 (1) and {(ZnTPP)2.DMP}.(C60)2.(C6H5Cl)4 (2), where DMP=N,N'-dimethylpiperazine and DMETEP+=the cation of N,N'-dimethyl-N'-ethylthioethylpiperazine. The crystal structure of 1 contains zigzag chains of the (C60-)2 dimers alternating with the DMETEP+ cations in the channels formed by the (MnIITPP)2.DMP units, whereas in 2 zigzag chains of the C60 molecules are separated by the (ZnTPP)2.DMP units and C6H5Cl molecules. The (MIITPP)2.DMP assemblies (M=Mn, Zn) have axial M-N(DMP) bonds of 2.315(2) and 2.250(2) A length, average equatorial M-N(DMP) bonds elongated to 2.141(3) and 2.077(2) A, and MII atoms displaced from the porphyrin plane toward the ligand by 0.677 and 0.485 A, respectively. The single-bonded sigma-(C60-)2 dimer coexists in 1 with the (C60-)2 dimer bonded by two single bonds with 86/14 occupancy factors. The sigma-(C60-)2 dimers are unusually stable and begin to dissociate only above a temperature of 320-330 K that results in the increase of the magnetic moment of 1 from 8.33 microB (320 K) to 8.66 microB (360 K). The electron paramagnetic resonance (EPR) signal of the dimeric phase (T<320 K) with the features spread over the range of 0-0.7 T was attributed to the interacting Mn2+ centers in the (MnIITPP)2.DMP units. The dissociation of the sigma-(C60-)2 dimers to the EPR-active C60*- radical anions manifests a new broad Lorenz signal above 320 K with g=2.0179 and DeltaH=65.5 mT. This signal can appear due to the exchange coupling between paramagnetic (MnIITPP)2.DMP and C60*- species. The vis-NIR spectrum of the sigma-(C60-)2 dimers is discussed.
Collapse
Affiliation(s)
- Dmitri V Konarev
- Division of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan.
| | | | | | | | | |
Collapse
|
8
|
Ionic fullerene compounds containing negatively charged dimers and coordinatively bound anions. Russ Chem Bull 2007. [DOI: 10.1007/s11172-007-0063-7] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
9
|
|
10
|
Saito G, Yoshida Y. Development of Conductive Organic Molecular Assemblies: Organic Metals, Superconductors, and Exotic Functional Materials. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2007. [DOI: 10.1246/bcsj.80.1] [Citation(s) in RCA: 341] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
11
|
Konarev DV, Khasanov SS, Kovalevsky AY, Saito G, Otsuka A, Lyubovskaya RN. Structural aspects of two-stage dimerization in an ionic C60complex with bis(benzene)chromium: Cr(C6H6)2·C60·C6H4Cl2. Dalton Trans 2006:3716-20. [PMID: 16865185 DOI: 10.1039/b603685f] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Single crystals of the ionic C60 complex with bis(benzene)chromium: {Cr(I)(C6H6)2(.+)}.(C60.-)).C6H4Cl2 (1) were obtained. The crystal structure of 1 shows the presence of monomeric C60.- radical anions at 250 K and the formation of single-bonded (C60-)2 dimers at 90 K. The dimerization is realized in two types of the C60.-) pairs with different interfullerene center-to-center distances of 10.052 and 10.279 A arranged in zigzag chains along the a-direction. As a result, two symmetrically independent (C60-)2 dimers found in 1 at 90 K have different environments, intercage C-C bond lengths and C60- center-to-center distances. Such differences should provide different thermal stability of these dimers and result in the appearance of two stages at the dimerization. Indeed, according to SQUID measurements, the magnetic moment of 1 decreases stepwise at the dimerization in two temperature ranges at 240-200 and 200-160 K.
Collapse
Affiliation(s)
- Dmitri V Konarev
- Division of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan.
| | | | | | | | | | | |
Collapse
|
12
|
|
13
|
Hönnerscheid A, van Wüllen L, Dinnebier R, Jansen M, Rahmer J, Mehring M. Evidence for C60dimerisation in the fulleride [Cr(C9H12)2]+C60−. Phys Chem Chem Phys 2004. [DOI: 10.1039/b317060h] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
14
|
Goedde B, Waiblinger M, Jakes P, Weiden N, Dinse KP, Weidinger A. `Nitrogen doped' C60 dimers (N@C60–C60). Chem Phys Lett 2001. [DOI: 10.1016/s0009-2614(00)01406-8] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
15
|
Alkali-metal fullerides MC60 (THF)x (M=Li, Na, K): a new solution-phase method for the preparation and characterization with ESR, UV–NIR and IR spectroscopy. J Organomet Chem 2000. [DOI: 10.1016/s0022-328x(99)00755-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
16
|
Kim KS, Park JM, Kim J, Suh SB, Tarakeshwar P, Lee KH, Park SS. Dimer to monomer phase transition in alkali-metal fullerides: magnetic susceptibility changes. PHYSICAL REVIEW LETTERS 2000; 84:2425-2428. [PMID: 11018901 DOI: 10.1103/physrevlett.84.2425] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/1999] [Indexed: 05/23/2023]
Abstract
Ab initio calculations have been employed to investigate the peculiar change in magnetic property (from diamagnetic to paramagnetic) of the dianionic C60-dimer phase in a rapidly cooled AC60 samples ( A: alkali metal). We first note that the triplet state of (C60)-22 which was never considered previously is nearly degenerate with the singlet state, and the transition barrier between the two states is reasonably small. This explains the susceptibility increase with an increase in temperature and the magnetic phase transition in the process of the dimer to monomer phase transition.
Collapse
Affiliation(s)
- KS Kim
- National Creative Research Initiative Center for Superfunctional Materials, Department of Chemistry, Pohang University of Science and Technology, Pohang 790-784, Korea
| | | | | | | | | | | | | |
Collapse
|
17
|
Yarger JL, Wagberg T, Hone J, Gross BJ, Tomaselli M, Titman JJ, Zettl A, Mehring M. Electron spin density distribution in the polymer phase of CsC60: assignment of the NMR spectrum. PHYSICAL REVIEW LETTERS 2000; 84:717-720. [PMID: 11017355 DOI: 10.1103/physrevlett.84.717] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/1999] [Indexed: 05/23/2023]
Abstract
We present high resolution 133Cs-13C double resonance NMR data and 13C-13C NMR correlation spectra of 13C enriched samples of the polymeric phase of CsC60. These data lead to a partial assignment of the lines in the 13C NMR spectrum of CsC60 to the carbon positions on the C60 molecule. A plausible completion of the assignment can be made on the basis of an ab initio calculation. The data support the view that the conduction electron density is concentrated at the C60 "equator," away from the interfullerene bonds.
Collapse
|
18
|
|
19
|
|
20
|
|
21
|
Guerrero H, Cappelletti R, Neumann D, Yildirim T. Structure and lattice dynamics of K1C60 in the orthorhombic phase: a neutron scattering study. Chem Phys Lett 1998. [DOI: 10.1016/s0009-2614(98)01147-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
22
|
Andreoni W. COMPUTATIONAL APPROACH TO THE PHYSICAL CHEMISTRY OF FULLERENES AND THEIR DERIVATIVES. Annu Rev Phys Chem 1998; 49:405-39. [PMID: 15012433 DOI: 10.1146/annurev.physchem.49.1.405] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A critical review is presented of results obtained with different computational methods (mainly ab initio) on C60, C70, and specific fullerene derivatives, also in comparison with experimental data. From the discussion of diverse systems, the (often underestimated) complexity of their physical and chemical behavior emerges, and hence the importance of an accurate description and the need for a careful inspection of the experimental data, with which comparison is often intrinsically difficult. The ambition of this review is to help establish a basis not only for a nonsuperficial reading of the existing literature, but also for a constructive approach with computations to the challenge posed by recent promising applications of fullerenes in nanotechnology, optoelectronics, and biology.
Collapse
Affiliation(s)
- W Andreoni
- IBM Research Division, Zurich Research Laboratory, Rüschlikon, CH-8803 Switzerland.
| |
Collapse
|
23
|
Nikolaev AV, Prassides K, Michel KH. Charge transfer and polymer phases in AC60 (A=K, Rb, Cs) fullerides. J Chem Phys 1998. [DOI: 10.1063/1.475900] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
24
|
|
25
|
|
26
|
Shvartsburg AA, Hudgins RR, Dugourd P, Jarrold MF. Structural Elucidation of Fullerene Dimers by High-Resolution Ion Mobility Measurements and Trajectory Calculation Simulations. J Phys Chem A 1997. [DOI: 10.1021/jp9637901] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Robert R. Hudgins
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208
| | - Philippe Dugourd
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208
| | - Martin F. Jarrold
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208
| |
Collapse
|
27
|
Smie A, Heinze J. Reversible Dimerisierung von Diphenylpolyen-Radikalkationen: eine Alternative zum Bipolaron-Modell. Angew Chem Int Ed Engl 1997. [DOI: 10.1002/ange.19971090413] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
28
|
Andreoni W, Curioni A, Holczer K, Prassides K, Keshavarz-K. M, Hummelen JC, Wudl F. Unconventional Bonding of Azafullerenes: Theory and Experiment. J Am Chem Soc 1996. [DOI: 10.1021/ja962279i] [Citation(s) in RCA: 102] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wanda Andreoni
- IBM Research Division, Zurich Research Laboratory CH-8803 Rüschlikon, Switzerland Scuola Normale Superiore, I-56126 Pisa, Italy Department of Physics, University of California Los Angeles, California 90024 School of Chemistry, Physics and Environmental Science University of Sussex, Flamer, Brighton BN1 9QJ, U.K. Institute for Polymers and Organic Solids Department of Chemistry and Materials University of California, Santa Barbara, California 93106
| | - Alessandro Curioni
- IBM Research Division, Zurich Research Laboratory CH-8803 Rüschlikon, Switzerland Scuola Normale Superiore, I-56126 Pisa, Italy Department of Physics, University of California Los Angeles, California 90024 School of Chemistry, Physics and Environmental Science University of Sussex, Flamer, Brighton BN1 9QJ, U.K. Institute for Polymers and Organic Solids Department of Chemistry and Materials University of California, Santa Barbara, California 93106
| | - Károly Holczer
- IBM Research Division, Zurich Research Laboratory CH-8803 Rüschlikon, Switzerland Scuola Normale Superiore, I-56126 Pisa, Italy Department of Physics, University of California Los Angeles, California 90024 School of Chemistry, Physics and Environmental Science University of Sussex, Flamer, Brighton BN1 9QJ, U.K. Institute for Polymers and Organic Solids Department of Chemistry and Materials University of California, Santa Barbara, California 93106
| | - Kosmas Prassides
- IBM Research Division, Zurich Research Laboratory CH-8803 Rüschlikon, Switzerland Scuola Normale Superiore, I-56126 Pisa, Italy Department of Physics, University of California Los Angeles, California 90024 School of Chemistry, Physics and Environmental Science University of Sussex, Flamer, Brighton BN1 9QJ, U.K. Institute for Polymers and Organic Solids Department of Chemistry and Materials University of California, Santa Barbara, California 93106
| | - Majid Keshavarz-K.
- IBM Research Division, Zurich Research Laboratory CH-8803 Rüschlikon, Switzerland Scuola Normale Superiore, I-56126 Pisa, Italy Department of Physics, University of California Los Angeles, California 90024 School of Chemistry, Physics and Environmental Science University of Sussex, Flamer, Brighton BN1 9QJ, U.K. Institute for Polymers and Organic Solids Department of Chemistry and Materials University of California, Santa Barbara, California 93106
| | - Jan-Cornelis Hummelen
- IBM Research Division, Zurich Research Laboratory CH-8803 Rüschlikon, Switzerland Scuola Normale Superiore, I-56126 Pisa, Italy Department of Physics, University of California Los Angeles, California 90024 School of Chemistry, Physics and Environmental Science University of Sussex, Flamer, Brighton BN1 9QJ, U.K. Institute for Polymers and Organic Solids Department of Chemistry and Materials University of California, Santa Barbara, California 93106
| | - Fred Wudl
- IBM Research Division, Zurich Research Laboratory CH-8803 Rüschlikon, Switzerland Scuola Normale Superiore, I-56126 Pisa, Italy Department of Physics, University of California Los Angeles, California 90024 School of Chemistry, Physics and Environmental Science University of Sussex, Flamer, Brighton BN1 9QJ, U.K. Institute for Polymers and Organic Solids Department of Chemistry and Materials University of California, Santa Barbara, California 93106
| |
Collapse
|
29
|
Oszlányi G, Bortel G, Faigel G, Gránásy L, Bendele GM, Stephens PW, Forró L. Single C-C bond in (C60)22-. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:11849-11852. [PMID: 9985012 DOI: 10.1103/physrevb.54.11849] [Citation(s) in RCA: 69] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
30
|
De Seta M, Petaccia L, Evangelisti F. The LUMO-derived band of the [Formula: see text] phases. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 1996; 8:7221-7232. [PMID: 22146560 DOI: 10.1088/0953-8984/8/38/023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The LUMO-derived band of the [Formula: see text] compound was investigated by means of x-ray and UV photoemission and photoelectric yield spectroscopies. A double-peak structure is found, with peak maxima at 1.1 eV and 0.35 eV. The relative magnitude of the two peaks is strongly temperature dependent: a large transfer of spectral weight from the lower- to the higher-binding-energy peak takes place upon cooling to 110 K. The peaks are tentatively attributed to the dimer and the polymeric phase respectively. However the behaviour as a function of temperature does not agree with the metastability of the dimer phase at room temperature. The position of the Fermi level is compatible with a correlated system on the border of the metal - insulating transition.
Collapse
Affiliation(s)
- M De Seta
- Dipartimento di Fisica `E Amaldi', Universitá di Roma III via Vasca Navale 84, 00146 Rome, Italy, and Istituto Nazionale di Fisica della Materia, Unitá di Roma III, via Vasca Navale 84, 00146 Rome, Italy
| | | | | |
Collapse
|
31
|
Onoe J, Takeuchi K. In situ high-resolution infrared spectroscopy of a photopolymerized C60 film. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:6167-6171. [PMID: 9986631 DOI: 10.1103/physrevb.54.6167] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
32
|
|
33
|
Persson PA, Edlund U, Jacobsson P, Johnels D, Soldatov A, Sundqvist B. NMR and Raman characterization of pressure polymerized C60. Chem Phys Lett 1996. [DOI: 10.1016/0009-2614(96)00743-9] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
34
|
|
35
|
Renker B, Schober H, Gompf F, Heid R, Ressouche E. Lattice dynamics of RbC60 in its rotator, polymer, and dimer phase: A neutron-scattering investigation. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:R14701-R14704. [PMID: 9983334 DOI: 10.1103/physrevb.53.r14701] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
36
|
Fagerström J, Stafström S. Formation of C60 dimers: A theoretical study of electronic structure and optical absorption. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:13150-13158. [PMID: 9982995 DOI: 10.1103/physrevb.53.13150] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
37
|
Gránásy L, Pekker S, Forró L. Thermodynamics of polymorphism in the AC60 (A=K, Rb, Cs) alkali fullerides. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:5059-5062. [PMID: 9984089 DOI: 10.1103/physrevb.53.5059] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
38
|
Thier K, Zimmer G, Mehring M, Rachdi F. NMR investigation of the electronic structure of the RbC60 polymer phase. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:R496-R499. [PMID: 9983064 DOI: 10.1103/physrevb.53.r496] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
39
|
Kamarás K, Gránásy L, Tanner DB, Forró L. Infrared and differential-scanning-calorimetry study of the room-temperature cubic phase of RbC60. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:11488-11491. [PMID: 9980257 DOI: 10.1103/physrevb.52.11488] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
40
|
Winter J, Kuzmany H. Face-centered-cubic to orthorhombic phase transition in single-crystal RbC60 analyzed by Raman scattering. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:7115-7123. [PMID: 9979652 DOI: 10.1103/physrevb.52.7115] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
41
|
Faigel G, Bortel G, Tegze M, Granasy L, Pekker S, Oszlanyi G, Chauvet O, Baumgartner G, Forro L, Stephens PW, Mihaly G, Janossy A. Distribution of K ions in intermediate KC60. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:3199-3205. [PMID: 9981436 DOI: 10.1103/physrevb.52.3199] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
42
|
Oszlányi G, Bortel G, Faigel G, Tegze M, Gránásy L, Pekker S, Stephens PW, Bendele G, Dinnebier R, Mihály G, Jánossy A, Chauvet O, Forró L. Dimerization in KC60 and RbC60. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:12228-12232. [PMID: 9977993 DOI: 10.1103/physrevb.51.12228] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
43
|
Petit P, Robert J, Fischer JE. Electron-spin-resonance study of the dimer state of KC60 and its transformations. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:11924-11927. [PMID: 9977934 DOI: 10.1103/physrevb.51.11924] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
44
|
Ōsawa S, Ōsawa E, Hirose Y. Doubly Bonded C60Dimers and Congeners: Computational Studies of Structures, Bond Energies and Transformations. ACTA ACUST UNITED AC 1995. [DOI: 10.1080/153638x9508543808] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|