1
|
Carlotto S, Sambi M, Sedona F, Vittadini A, Casarin M. A Theoretical Study of the Occupied and Unoccupied Electronic Structure of High- and Intermediate-Spin Transition Metal Phthalocyaninato (Pc) Complexes: VPc, CrPc, MnPc, and FePc. NANOMATERIALS 2020; 11:nano11010054. [PMID: 33379291 PMCID: PMC7824030 DOI: 10.3390/nano11010054] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 12/18/2020] [Accepted: 12/22/2020] [Indexed: 11/16/2022]
Abstract
The structural, electronic, and spectroscopic properties of high- and intermediate-spin transition metal phthalocyaninato complexes (MPc; M = V, Cr, Mn and Fe) have been theoretically investigated to look into the origin, symmetry and strength of the M–Pc bonding. DFT calculations coupled to the Ziegler’s extended transition state method and to an advanced charge density and bond order analysis allowed us to assess that the M–Pc bonding is dominated by σ interactions, with FePc having the strongest and most covalent M–Pc bond. According to experimental evidence, the lightest MPcs (VPc and CrPc) have a high-spin ground state (GS), while the MnPc and FePc GS spin is intermediate. Insights into the MPc unoccupied electronic structure have been gained by modelling M L2,3-edges X-ray absorption spectroscopy data from the literature through the exploitation of the current Density Functional Theory variant of the Restricted Open-Shell Configuration Interaction Singles (DFT/ROCIS) method. Besides the overall agreement between theory and experiment, the DFT/ROCIS results indicate that spectral features lying at the lowest excitation energies (EEs) are systematically generated by electronic states having the same GS spin multiplicity and involving M-based single electronic excitations; just as systematically, the L3-edge higher EE region of all the MPcs herein considered includes electronic states generated by metal-to-ligand-charge-transfer transitions involving the lowest-lying π* orbital (7eg) of the phthalocyaninato ligand.
Collapse
Affiliation(s)
- Silvia Carlotto
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, via F. Marzolo 1, 35131 Padova, Italy; (M.S.); (F.S.)
- Istituto di Chimica della Materia Condensata e di Tecnologie per l’Energia (ICMATE-CNR), via F. Marzolo 1, 35131 Padova, Italy;
- Correspondence: (S.C.); (M.C.)
| | - Mauro Sambi
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, via F. Marzolo 1, 35131 Padova, Italy; (M.S.); (F.S.)
| | - Francesco Sedona
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, via F. Marzolo 1, 35131 Padova, Italy; (M.S.); (F.S.)
| | - Andrea Vittadini
- Istituto di Chimica della Materia Condensata e di Tecnologie per l’Energia (ICMATE-CNR), via F. Marzolo 1, 35131 Padova, Italy;
| | - Maurizio Casarin
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, via F. Marzolo 1, 35131 Padova, Italy; (M.S.); (F.S.)
- Istituto di Chimica della Materia Condensata e di Tecnologie per l’Energia (ICMATE-CNR), via F. Marzolo 1, 35131 Padova, Italy;
- Correspondence: (S.C.); (M.C.)
| |
Collapse
|
2
|
Konarev DV. Radical anion and coordination compounds of polyconjugated molecules:potential organic materials with unusual magnetic, conducting and optical properties. MENDELEEV COMMUNICATIONS 2020. [DOI: 10.1016/j.mencom.2020.05.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
3
|
Comparison of spectroscopic, electronic, theoretical, optical and surface morphological properties of functional manganese(III) phthalocyanine compounds for various conditions. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.05.045] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
4
|
Vashurin A, Maizlish V, Tikhomirova T, Nemtseva M, Znoyko S, Aleksandriiskii V. Novel non-symmetrical bifunctionally-substituted phthalonitriles and corresponding d-metal phthalocyaninates. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.02.040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
5
|
|
6
|
Rückerl F, Waas D, Büchner B, Knupfer M, Zahn DRT, Haidu F, Hahn T, Kortus J. Charge transfer from and to manganese phthalocyanine: bulk materials and interfaces. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2017; 8:1601-1615. [PMID: 28884064 PMCID: PMC5550819 DOI: 10.3762/bjnano.8.160] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 06/13/2017] [Indexed: 05/09/2023]
Abstract
Manganese phthalocyanine (MnPc) is a member of the family of transition-metal phthalocyanines, which combines interesting electronic behavior in the fields of organic and molecular electronics with local magnetic moments. MnPc is characterized by hybrid states between the Mn 3d orbitals and the π orbitals of the ligand very close to the Fermi level. This causes particular physical properties, different from those of the other phthalocyanines, such as a rather small ionization potential, a small band gap and a large electron affinity. These can be exploited to prepare particular compounds and interfaces with appropriate partners, which are characterized by a charge transfer from or to MnPc. We summarize recent spectroscopic and theoretical results that have been achieved in this regard.
Collapse
Affiliation(s)
| | - Daniel Waas
- IFW Dresden, Helmholtzstr. 20, D-01069 Dresden, Germany
| | - Bernd Büchner
- IFW Dresden, Helmholtzstr. 20, D-01069 Dresden, Germany
| | | | - Dietrich R T Zahn
- Semiconductor Physics, Chemnitz University of Technology, D-09107 Chemnitz, Germany
| | - Francisc Haidu
- Semiconductor Physics, Chemnitz University of Technology, D-09107 Chemnitz, Germany
| | - Torsten Hahn
- Institute of Theoretical Physics, TU Bergakademie Freiberg, Leipziger Str. 23, D-09596 Freiberg, Germany
| | - Jens Kortus
- Institute of Theoretical Physics, TU Bergakademie Freiberg, Leipziger Str. 23, D-09596 Freiberg, Germany
| |
Collapse
|
7
|
Robaschik P, Ma Y, Din S, Heutz S. Formation of ferromagnetic molecular thin films from blends by annealing. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2017; 8:1469-1475. [PMID: 28900600 PMCID: PMC5530637 DOI: 10.3762/bjnano.8.146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 06/20/2017] [Indexed: 06/07/2023]
Abstract
We report on a new approach for the fabrication of ferromagnetic molecular thin films. Co-evaporated films of manganese phthalocyanine (MnPc) and tetracyanoquinodimethane (TCNQ) have been produced by organic molecular beam deposition (OMBD) on rigid (glass, silicon) and flexible (Kapton) substrates kept at room temperature. The MnPc:TCNQ films are found to be entirely amorphous due to the size mismatch of the molecules. However, by annealing while covering the samples highly crystalline MnPc films in the β-polymorph can be obtained at 60 °C lower than when starting with pure MnPc films. The resulting films exhibit substantial coercivity (13 mT) at 2 K and a Curie temperature of 11.5 K.
Collapse
Affiliation(s)
- Peter Robaschik
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Rd, London SW7 2AZ, United Kingdom
| | - Ye Ma
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Rd, London SW7 2AZ, United Kingdom
| | - Salahud Din
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Rd, London SW7 2AZ, United Kingdom
- Kurt J. Lesker Company, Sidney Little Rd, St Leonard’s on Sea TN38 9PU, United Kingdom
| | - Sandrine Heutz
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Rd, London SW7 2AZ, United Kingdom
| |
Collapse
|
8
|
Konarev DV, Faraonov MA, Kuzmin AV, Khasanov SS, Nakano Y, Norko SI, Batov MS, Otsuka A, Yamochi H, Saito G, Lyubovskaya RN. Crystalline salts of metal phthalocyanine radical anions [M(Pc˙3−)]˙− (M = CuII, PbII, VIVO, SnIVCl2) with cryptand(Na+) cations: structure, optical and magnetic properties. NEW J CHEM 2017. [DOI: 10.1039/c7nj00530j] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Radical anion salts of metal phthalocyanines (M = CuII, PbII, VIVO and SnIVCl2) with the {cryptand(Na+)} cations have been obtained and studied.
Collapse
Affiliation(s)
| | | | | | | | - Yoshiaki Nakano
- Division of Chemistry
- Graduate School of Science
- Kyoto University
- Kyoto 606-8502
- Japan
| | - Semen I. Norko
- Institute of Problems of Chemical Physics RAS
- Chernogolovka
- Russia
- Moscow State University
- 119991 Moscow
| | - Mikhail S. Batov
- Institute of Problems of Chemical Physics RAS
- Chernogolovka
- Russia
- Moscow State University
- 119991 Moscow
| | - Akihiro Otsuka
- Division of Chemistry
- Graduate School of Science
- Kyoto University
- Kyoto 606-8502
- Japan
| | - Hideki Yamochi
- Division of Chemistry
- Graduate School of Science
- Kyoto University
- Kyoto 606-8502
- Japan
| | - Gunzi Saito
- Toyota Physical and Chemical Research Institute
- Nagakute
- Japan
| | | |
Collapse
|
9
|
Wang Z, Seehra MS. Ising-like chain magnetism, Arrhenius magnetic relaxation, and case against 3D magnetic ordering in β-manganese phthalocyanine (C₃₂H₁₆MnN₈). JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2016; 28:136002. [PMID: 26954989 DOI: 10.1088/0953-8984/28/13/136002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Previous magnetic studies in the organic semiconductor β-manganese phthalocyanine (β-MnPc) have reported it to be a canted ferromagnet below T(C) ≈ 8.6 K. However, the recent result of the lack of a λ-type anomaly in the specific heat versus temperature data near the quoted T(C) has questioned the presence of long-range 3-dimensional (3D) magnetic ordering in this system. In this paper, detailed measurements and analysis of the temperature (2 K-300 K) and magnetic field (up to 90 kOe) dependence of the dc and ac magnetic susceptibilities in a powder sample of β-MnPc leads us to conclude that 3D long-range magnetic ordering is absent in this material. This is supported by the Arrott plots and the lack of a peak in the ac susceptibilities, χ' and χ″, near the quoted T(C). Instead, the system can be best described as an Ising-like chain magnet with Arrhenius relaxation of the magnetization governed by an intra-layer ferromagnetic exchange constant J/k(B) = 2.6 K and the single ion anisotropy energy parameter |D|/k(B) = 8.3 K. The absence of 3D long range order is consistent with the measured |D|/ > J.
Collapse
Affiliation(s)
- Zhengjun Wang
- Department of Physics & Astronomy, West Virginia University, Morgantown, WV 26506-6315, USA
| | | |
Collapse
|
10
|
Wang Z, Jia K, Liu X. Effect of elevated annealing temperature on electrical conductivity and magnetic properties of iron phthalocyanine polymer. JOURNAL OF POLYMER RESEARCH 2016. [DOI: 10.1007/s10965-016-0940-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
11
|
Ji X, Zou T, Gong H, Wu Q, Qiao Z, Wu W, Wang H. Cobalt phthalocyanine nanowires: Growth, crystal structure, and optical properties. CRYSTAL RESEARCH AND TECHNOLOGY 2015. [DOI: 10.1002/crat.201500244] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xiaolin Ji
- Key Laboratory of Yunnan Provincial Higher Education Institutions for Organic Optoelectronic Materials and Devices; Kunming University; Kunming 650214 People's Republic of China
- College of Physical Science and Technology; Yunnan University; Kunming 650091 People's Republic of China
| | - Taoyu Zou
- Key Laboratory of Yunnan Provincial Higher Education Institutions for Organic Optoelectronic Materials and Devices; Kunming University; Kunming 650214 People's Republic of China
- College of Physical Science and Technology; Yunnan University; Kunming 650091 People's Republic of China
| | - Hao Gong
- Department of Materials Science and Engineering; National University of Singapore; Singapore 119260 Singapore
| | - Qiong Wu
- Department of Chemical Science and Technology; Kunming University; Yunnan Kunming 65200 People's Republic of China
| | - Zhenfang Qiao
- Key Laboratory of Yunnan Provincial Higher Education Institutions for Organic Optoelectronic Materials and Devices; Kunming University; Kunming 650214 People's Republic of China
- College of Physical Science and Technology; Yunnan University; Kunming 650091 People's Republic of China
| | - Wei Wu
- Department of Physics and Astronomy and London Centre for Nanotechnology; University College London; Gower Street London WC1E 6BT United Kingdom
| | - Hai Wang
- Key Laboratory of Yunnan Provincial Higher Education Institutions for Organic Optoelectronic Materials and Devices; Kunming University; Kunming 650214 People's Republic of China
| |
Collapse
|
12
|
Konarev DV, Troyanov SI, Faraonov MA, Ishikawa M, Otsuka A, Yamochi H, Saito G, Lyubovskaya RN. Molecular structure, optical and magnetic properties of the {SnIVPc(3-)Cl2}•- radical anions containing negatively charged Pc ligands. J PORPHYR PHTHALOCYA 2015. [DOI: 10.1142/s1088424614501077] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Radical anion salt ( PPN +){ Sn IV Pc (3-) Cl 2}•- (1) was obtained by the reduction of tin(IV) phthalocyanine dichloride { Sn IV Pc (2-) Cl 2} with ( PPN +)( C 60•-) ( PPN + is bis(triphenylphosphoranylidene)-ammonium cation). It was shown that the reduction is centered mainly on the Pc ligand providing the appearance of a new band in the spectrum of 1 in the NIR range at 1006 nm and blue-shift of Soret and Q-bands of Sn IV Pc (2-) Cl 2. The alternation of short and long C – N imine bonds for two oppositely located isoindole units in 1 indicates possible disruption of aromaticity of the Pc ligand under reduction. Salt 1 has effective magnetic moment of 1.69 μB at 300 K corresponding to the contribution of one non-interacting S = 1/2 spin per formula unit and manifests antiferromagnetic coupling of spins with Weiss temperature of -7.3 K in the 400–30 K range. The salt shows a broad EPR signal with g = 1.9957 and linewidth of 19.3 mT at room temperature. The signal splits into two components below 120 K. Strong broadening of the EPR signal and shift of g-factors to smaller values in comparison with the EPR signal from radical anions of metal-free phthalocyanine { H 2 Pc (3-)}•- were attributed to the contribution of the { Sn III Pc (2-) Cl 2}- admixture with paramagnetic Sn III . There are π–π stacking one-dimensional chains composed of { Sn IV Pc (3-) Cl 2}•- in 1 along the a axis with weak overlapping between phenylene groups of phthalocyanine radical anions. The calculated HOMO–HOMO overlap integral is 0.0033 and the SOMO–SOMO overlap integral is only 0.0004. Metallic conductivity is not realized in 1 most probably due to weak SOMO–SOMO overlapping.
Collapse
Affiliation(s)
- Dmitri V. Konarev
- Institute of Problems of Chemical Physics RAS, Chernogolovka, Moscow region, 142432, Russia
| | - Sergey I. Troyanov
- Chemistry Department, Moscow State University, Leninskie Gory, 119991 Moscow, Russia
| | - Maxim A. Faraonov
- Institute of Problems of Chemical Physics RAS, Chernogolovka, Moscow region, 142432, Russia
| | - Manabu Ishikawa
- Research Center for Low Temperature and Materials Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
- Faculty of Agriculture, Meijo University, 1-501 Shiogamaguchi, Tempaku-ku, Nagoya 468-8502, Japan
| | - 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
- Faculty of Agriculture, 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
|
13
|
Konarev DV, Kuzmin AV, Faraonov MA, Ishikawa M, Khasanov SS, Nakano Y, Otsuka A, Yamochi H, Saito G, Lyubovskaya RN. Synthesis, Structures, and Properties of Crystalline Salts with Radical Anions of Metal-Containing and Metal-Free Phthalocyanines. Chemistry 2014; 21:1014-28. [DOI: 10.1002/chem.201404925] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Indexed: 11/12/2022]
|
14
|
Konarev DV, Kuzmin AV, Khasanov SS, Lyubovskaya RN. The molecular structure of high-spin (S = 5/2) manganese(II) phthalocyanine in tetrabutylammonium bromido(phthalocyaninato)manganese(II). Acta Crystallogr C Struct Chem 2014; 70:449-51. [PMID: 24816011 DOI: 10.1107/s2053229614007475] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Accepted: 04/03/2014] [Indexed: 11/11/2022] Open
Abstract
The title complex salt, (C16H36N)[MnBr(C32H16N8)] or (TBA)[Mn(II)Br(Pc)] (TBA is tetrabutylammonium and Pc is phthalocyaninate), has been obtained as single crystals by the diffusion technique and its crystal structure was determined using X-ray diffraction. The high-spin (S = 5/2) [Mn(II)Br(Pc)](-) macrocycle has a concave conformation, with an average equatorial Mn-N(Pc) bond length of 2.1187 (19) Å, an axial Mn-Br bond length of 2.5493 (7) Å and with the Mn(II) cation displaced out of the 24-atom Pc plane by 0.894 (2) Å. The geometry of the Mn(II)N4 fragment in [Mn(II)Br(Pc)](-) is similar to that of the high-spin (S = 5/2) manganese(II) tetraphenylporphyrin (TPP) in [Mn(II)(1-MeIm)(TPP)] (1-MeIm is 1-methylimidazole).
Collapse
Affiliation(s)
- Dmitri V Konarev
- Institute of Problems of Chemical Physics, Russian Academy of Science, Chernogolovka 142432, Russian Federation
| | - Alexey V Kuzmin
- Institute of Solid State Physics, Russian Academy of Science, Chernogolovka 142432, Russian Federation
| | - Salavat S Khasanov
- Institute of Solid State Physics, Russian Academy of Science, Chernogolovka 142432, Russian Federation
| | - Rimma N Lyubovskaya
- Institute of Problems of Chemical Physics, Russian Academy of Science, Chernogolovka 142432, Russian Federation
| |
Collapse
|
15
|
Konarev DV, Kuzmin AV, Ishikawa M, Nakano Y, Faraonov MA, Khasanov SS, Otsuka A, Yamochi H, Saito G, Lyubovskaya RN. Layered Salts with Iron Hexadecachlorophthalocyanine Anions - The Formation of [{FeCl16Pc}2]3-Dimers Containing [FeICl16Pc(2-)]-and Diamagnetic [Fe0Cl16Pc(2-)]2-. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201400126] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
16
|
Stepanow S, Lodi Rizzini A, Krull C, Kavich J, Cezar JC, Yakhou-Harris F, Sheverdyaeva PM, Moras P, Carbone C, Ceballos G, Mugarza A, Gambardella P. Spin tuning of electron-doped metal-phthalocyanine layers. J Am Chem Soc 2014; 136:5451-9. [PMID: 24635343 DOI: 10.1021/ja501204q] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The spin state of organic-based magnets at interfaces is to a great extent determined by the organic environment and the nature of the spin-carrying metal center, which is further subject to modifications by the adsorbate-substrate coupling. Direct chemical doping offers an additional route for tailoring the electronic and magnetic characteristics of molecular magnets. Here we present a systematic investigation of the effects of alkali metal doping on the charge state and crystal field of 3d metal ions in Cu, Ni, Fe, and Mn phthalocyanine (Pc) monolayers adsorbed on Ag. Combined X-ray absorption spectroscopy and ligand field multiplet calculations show that Cu(II), Ni(II), and Fe(II) ions reduce to Cu(I), Ni(I), and Fe(I) upon alkali metal adsorption, whereas Mn maintains its formal oxidation state. The strength of the crystal field at the Ni, Fe, and Mn sites is strongly reduced upon doping. The combined effect of these changes is that the magnetic moment of high- and low-spin ions such as Cu and Ni can be entirely turned off or on, respectively, whereas the magnetic configuration of MnPc can be changed from intermediate (3/2) to high (5/2) spin. In the case of FePc a 10-fold increase of the orbital magnetic moment accompanies charge transfer and a transition to a high-spin state.
Collapse
Affiliation(s)
- Sebastian Stepanow
- Department of Materials, ETH Zürich , Hönggerbergring 64, 8093 Zürich, Switzerland
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
17
|
Konarev DV, Kuzmin AV, Khasanov SS, Otsuka A, Yamochi H, Saito G, Lyubovskaya RN. Design, crystal structures and magnetic properties of anionic salts containing fullerene C60 and indium(iii) bromide phthalocyanine radical anions. Dalton Trans 2014; 43:13061-9. [DOI: 10.1039/c4dt01153h] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Salts containing fullerene C60 and indium(iii) bromide phthalocyanine (Pc) radical anions, (TBA+)3(C60˙−){InIII(Br)(Pc)˙−}(Br−)·C6H4Cl2 (1) and (TEA+)2(C60˙−){InIII(Br)(Pc)˙−}·C6H4Cl2·C6H14 (2), have been obtained and their structures, optical and magnetic properties are discussed.
Collapse
Affiliation(s)
| | | | | | - Akihiro Otsuka
- Research Center for Low Temperature and Materials Sciences
- Kyoto University
- Kyoto 606-8501, Japan
| | - Hideki Yamochi
- Research Center for Low Temperature and Materials Sciences
- Kyoto University
- Kyoto 606-8501, Japan
| | - Gunzi Saito
- Faculty of Agriculture
- Meijo University
- Nagoya 468-8502, Japan
| | | |
Collapse
|
18
|
Konarev DV, Ishikawa M, Khasanov SS, Otsuka A, Yamochi H, Saito G, Lyubovskaya RN. Synthesis, Structural and Magnetic Properties of Ternary Complexes of (Me4P+)·{[Fe(I)Pc(−2)]−}·Triptycene and (Me4P+)·{[Fe(I)Pc(−2)]−}·(N,N,N′,N′-Tetrabenzyl-p-phenylenediamine)0.5 with Iron(I) Phthalocyanine Anions. Inorg Chem 2013; 52:3851-9. [DOI: 10.1021/ic3025364] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dmitri V. Konarev
- Institute of Problems of Chemical Physics RAS, Chernogolovka, Moscow Region,
142432 Russia
| | - Manabu Ishikawa
- Research
Center for Low Temperature
and Materials Sciences, Kyoto University, Kyoto 606-8501, Japan
| | - 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, Kyoto 606-8501, Japan
| | - Hideki Yamochi
- Research
Center for Low Temperature
and Materials Sciences, Kyoto University, Kyoto 606-8501, Japan
| | - Gunzi Saito
- Faculty of Agriculture, 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
|
19
|
Konarev DV, Kuzmin AV, Khasanov SS, Lyubovskaya RN. Zwitterionic {Fe(i)Pc(−2)−}·(TMP+) assemblies comprising anionic iron(i) phthalocyanines and coordinating N,N,N′-trimethylpiperazinium cations. Dalton Trans 2013; 42:9870-6. [DOI: 10.1039/c3dt50855b] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
20
|
Konarev DV, Zorina LV, Khasanov SS, Litvinov AL, Otsuka A, Yamochi H, Saito G, Lyubovskaya RN. Molecular structure, optical and magnetic properties of metal-free phthalocyanine radical anions in crystalline salts (H2Pc˙−)(cryptand[2,2,2][Na+])·1.5C6H4Cl2 and (H2Pc˙−)(TOA+)·C6H4Cl2 (TOA+ is tetraoctylammonium cation). Dalton Trans 2013; 42:6810-6. [DOI: 10.1039/c3dt50245g] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
21
|
Konarev DV, Kuzmin AV, Simonov SV, Khasanov SS, Otsuka A, Yamochi H, Saito G, Lyubovskaya RN. Ionic compound containing iron phthalocyanine (FeIPc)− anions and (C70−)2 dimers. Optical and magnetic properties of (FeIPc)− in the solid state. Dalton Trans 2012; 41:13841-7. [DOI: 10.1039/c2dt31587d] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
22
|
Meng F, Zhan Y, Lei Y, Zhao R, Xu M, Liu X. Rose thorns-like polymer micro/nanofibers via electrospinning and controlled temperature-induced self-assembly. Eur Polym J 2011. [DOI: 10.1016/j.eurpolymj.2011.05.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
23
|
Mahns B, Roth F, Grobosch M, Zahn DRT, Knupfer M. Electronic excitations of potassium intercalated manganese phthalocyanine investigated by electron energy-loss spectroscopy. J Chem Phys 2011; 134:194504. [PMID: 21599070 DOI: 10.1063/1.3591347] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
24
|
Identification of the electronic states of manganese phthalocyanine close to the Fermi level. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2011.02.039] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
25
|
Meng F, Zhao R, Xu M, Zhan Y, Lei Y, Zhong J, Liu X. Fe–phthalocyanine oligomer/Fe3O4 nano-hybrid particles and their effect on the properties of polyarylene ether nitriles magnetic nanocomposites. Colloids Surf A Physicochem Eng Asp 2011. [DOI: 10.1016/j.colsurfa.2010.12.031] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
26
|
Kraus R, Grobosch M, Knupfer M. Full electronic excitation spectrum of condensed manganese phthalocyanine. Chem Phys Lett 2009. [DOI: 10.1016/j.cplett.2008.12.090] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
27
|
Schulte K, Yan C, Ahola-Tuomi M, Stróżecka A, Moriarty PJ, Khlobystov AN. Encapsulation of cobalt phthalocyanine molecules in carbon nanotubes. ACTA ACUST UNITED AC 2008. [DOI: 10.1088/1742-6596/100/1/012017] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
28
|
Filibian M, Carretta P, Mozzati MC, Ghigna P, Zoppellaro G, Ruben M. Strong electronic correlations in LixZnPc organic metals. PHYSICAL REVIEW LETTERS 2008; 100:117601. [PMID: 18517827 DOI: 10.1103/physrevlett.100.117601] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2007] [Indexed: 05/26/2023]
Abstract
Nuclear magnetic resonance, electron paramagnetic resonance and magnetization measurements show that bulk LixZnPc are strongly correlated one-dimensional metals. The temperature dependence of the nuclear spin-lattice relaxation rate 1/T_{1} and of the static uniform susceptibility chi_{S} on approaching room temperature are characteristic of a Fermi liquid. Moreover, while for x approximately 2 the electrons are delocalized down to low temperature, for x-->4 a tendency towards localization is noticed upon cooling, yielding an increase both in 1/T_{1} and chi_{s}. The x dependence of the effective density of states at the Fermi level D(E_{F}) displays a sharp enhancement for x approximately 2, at the half filling of the ZnPc lowest unoccupied molecular orbitals. This suggests that LixZnPc is on the edge of a metal-insulator transition where enhanced superconducting fluctuations could develop.
Collapse
Affiliation(s)
- M Filibian
- Department of Physics A. Volta, University of Pavia, Via Bassi 6, I-27100 Pavia, Italy
| | | | | | | | | | | |
Collapse
|
29
|
|
30
|
Du X, Li Q, Chen Y, Su H, Yang J. Pair-hopping characteristic of lithium diffusive motion in Li-doped beta-phase manganese phthalocyanine. J Phys Chem B 2007; 111:10064-8. [PMID: 17683134 DOI: 10.1021/jp072304e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report a first-principles molecular dynamics study on Li-doped beta-phase manganese phthalocyanine (MnPc). Four electronegative sites next to pyrrole-bridging nitrogen atoms in single MnPc were characterized by analyzing electrostatic potentials. In one-dimensional stacked MnPc, six binding sites were unambiguously located, among which two were newly identified by both static and dynamic simulations. Molecular dynamics simulations were conducted to explore the underlying mechanism governing the diffusive motion of Li dopants. The continuous diffusion of Li atoms among these six binding sites of adjacent MnPc molecules has a distinct cooperative pair-hopping character. The activation energy is significantly lower for pair-hopping than for a single jump.
Collapse
Affiliation(s)
- Xiaosong Du
- Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, Anhui 230026, P.R. China
| | | | | | | | | |
Collapse
|
31
|
Margadonna S, Prassides K, Iwasa Y, Taguchi Y, Craciun MF, Rogge S, Morpurgo AF. Potassium Phthalocyanine, KPc: one-dimensional molecular stacks bridged by K+ ions. Inorg Chem 2007; 45:10472-8. [PMID: 17173402 DOI: 10.1021/ic060727+] [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
We report the synthesis of potassium phthalocyanine (KPc) and its structural characterization by synchrotron X-ray powder diffraction. We find that while KPc adopts the beta-polymorphic structural type (monoclinic space group P21/a) common for many MPc solids, its structure is characterized by unique features. The K+ ions, which are statistically disordered over two symmetry-equivalent positions, reside in the intrastack spacing of the rodlike molecular assemblies and strongly bond equidistantly to selected N atoms of the two neighboring Pc rings along the chain direction with an unusual 5-fold coordination. The K+-stuffed slipped stacks of Pc units display much greater intrastack and slippage distances than those of other beta-MPc polymorphs. They may be thought as comprising disordered dimeric (Pc)22- units; this leads to electron pairing and is consistent with the observed nonmagnetic response of the system.
Collapse
Affiliation(s)
- Serena Margadonna
- School of Chemistry, University of Edinburgh, Edinburgh EH9 3JJ, U.K.
| | | | | | | | | | | | | |
Collapse
|
32
|
de la Torre G, Claessens CG, Torres T. Phthalocyanines: old dyes, new materials. Putting color in nanotechnology. Chem Commun (Camb) 2007:2000-15. [PMID: 17713062 DOI: 10.1039/b614234f] [Citation(s) in RCA: 509] [Impact Index Per Article: 29.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Phthalocyanines are versatile building blocks for fabricating materials at the nanometer scale. These colored macrocycles exhibit fascinating physical properties which arise from their delocalized pi-electronic structure. This article describes why these molecules are targets for different scientific purposes and technological applications.
Collapse
Affiliation(s)
- Gema de la Torre
- Departamento de Quimica Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid, Spain
| | | | | |
Collapse
|