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Kuratsu M, Suzuki S, Kozaki M, Shiomi D, Sato K, Takui T, Kanzawa T, Hosokoshi Y, Lan X, Miyazaki Y, Inaba A, Okada K. (Nitronyl Nitroxide)‐Substituted Trioxytriphenylamine Radical Cation Tetrachlorogallate Salt: A 2p‐Electron‐Based Weak Ferromagnet Composed of a Triplet Diradical Cation. Chem Asian J 2012; 7:1604-9. [DOI: 10.1002/asia.201200084] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2012] [Revised: 03/03/2012] [Indexed: 11/10/2022]
Affiliation(s)
- Masato Kuratsu
- Department of Chemistry, Graduate School of Science, Osaka City University, Sugimoto, Sumiyoshi‐ku, Osaka 558‐8585 (Japan), Fax: (+81) 6‐6605‐2568
| | - Shuichi Suzuki
- Department of Chemistry, Graduate School of Science, Osaka City University, Sugimoto, Sumiyoshi‐ku, Osaka 558‐8585 (Japan), Fax: (+81) 6‐6605‐2568
| | - Masatoshi Kozaki
- Department of Chemistry, Graduate School of Science, Osaka City University, Sugimoto, Sumiyoshi‐ku, Osaka 558‐8585 (Japan), Fax: (+81) 6‐6605‐2568
| | - Daisuke Shiomi
- Department of Chemistry, Graduate School of Science, Osaka City University, Sugimoto, Sumiyoshi‐ku, Osaka 558‐8585 (Japan), Fax: (+81) 6‐6605‐2568
| | - Kazunobu Sato
- Department of Chemistry, Graduate School of Science, Osaka City University, Sugimoto, Sumiyoshi‐ku, Osaka 558‐8585 (Japan), Fax: (+81) 6‐6605‐2568
| | - Takeji Takui
- Department of Chemistry, Graduate School of Science, Osaka City University, Sugimoto, Sumiyoshi‐ku, Osaka 558‐8585 (Japan), Fax: (+81) 6‐6605‐2568
| | - Tsuneki Kanzawa
- Department of Physical Science, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599‐8531 (Japan)
| | - Yuko Hosokoshi
- Department of Physical Science, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599‐8531 (Japan)
| | - Xiao‐Zheng Lan
- Research Center for Structural Themodynamics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560‐0043 (Japan), Fax: (+81) 6‐6850‐5526
| | - Yuji Miyazaki
- Research Center for Structural Themodynamics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560‐0043 (Japan), Fax: (+81) 6‐6850‐5526
| | - Akira Inaba
- Research Center for Structural Themodynamics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560‐0043 (Japan), Fax: (+81) 6‐6850‐5526
| | - Keiji Okada
- Department of Chemistry, Graduate School of Science, Osaka City University, Sugimoto, Sumiyoshi‐ku, Osaka 558‐8585 (Japan), Fax: (+81) 6‐6605‐2568
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Conductive Materials Based on M(dmit)2 Complexes and Their Combination with Magnetic Complexes. TOP ORGANOMETAL CHEM 2009. [DOI: 10.1007/978-3-642-00408-7_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Fujita W, Kikuchi K. Magneto-Structural Correlations in a 1,3,2-Dithiazolyl Radical Crystal, BBDTA⋅GaBr4: Structure and Magnetic Properties of its Three Polymorphs. Chem Asian J 2009; 4:400-5. [DOI: 10.1002/asia.200800362] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Palacio F, Castro M, Antorrena G, Burriel R, Ritter C, Bricklebank N, Rawson J, B. Smith JN. Spontaneous Magnetisation at 36k in a Sulfur-Nitrogen Radical. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/10587259708044579] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Fernando Palacio
- a Instituto de Ciencia de Materiales de Aragón, CSIC - Universidad de Zaragoza , 50009 , Zaragoza , Spain
| | - Miguel Castro
- a Instituto de Ciencia de Materiales de Aragón, CSIC - Universidad de Zaragoza , 50009 , Zaragoza , Spain
| | - Guillermo Antorrena
- a Instituto de Ciencia de Materiales de Aragón, CSIC - Universidad de Zaragoza , 50009 , Zaragoza , Spain
| | - Ramón Burriel
- a Instituto de Ciencia de Materiales de Aragón, CSIC - Universidad de Zaragoza , 50009 , Zaragoza , Spain
| | - Clemens Ritter
- b Institut Laue Langevin , 38042 , Grenoble Cedex , France
| | - Neil Bricklebank
- c Division of Chemistry, School of Science , Sheffield Hallam University , Pond Street, Sheffield , S1 1WB , UK
| | - Jeremy Rawson
- d Department of Chemistry , University of Cambridge , Lensfield Road, Cambridge , CB2 1EW , UK
| | - J. Nicholas B. Smith
- d Department of Chemistry , University of Cambridge , Lensfield Road, Cambridge , CB2 1EW , UK
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Plater MJ, Kemp S, Coronado E, Gómez-García CJ, Harrington RW, Clegg W. A stable oxoverdazyl free radical: Structural and magnetic characterization. Polyhedron 2006. [DOI: 10.1016/j.poly.2006.02.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Mukai K, Shiba D, Yoshida K, Mukai K, Hisatou H, Ohara K, Hosokoshi Y, Azuma N. Paramagnetic Semiconductors: Hybrid Molecular Materials Based on Ethyl- and Methyl-pyridinium-Substituted Verdazyl Radical Cations and the Ni(dmit)2Anion (dmit = 1,3-Dithiol-2-thione-4,5-dithiolate). BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2005. [DOI: 10.1246/bcsj.78.2114] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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8
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Magnetic semiconductors: Molecular materials based on alkyl-pyridinium-substituted verdazyl radical cations and Ni(dmit)2 anion. Polyhedron 2005. [DOI: 10.1016/j.poly.2005.03.073] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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9
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Datta SN, Navada GK. On the variation of magnetic susceptibility of a molecular crystal with temperature: The 2,4,6-triphenylverdazyl system. J Chem Phys 2004; 120:2382-91. [PMID: 15268378 DOI: 10.1063/1.1636718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Magnetic susceptibilities of spin-1/2 systems of orthorhombic and higher crystal symmetries have been numerically investigated while taking possible anisotropy in the coupling constants along different crystal axes into account. The work relies on the magnon-based theory of ferromagnetic (FM) and antiferromagnetic (AFM) crystal systems of types FFF, AFF, AAF, and AAA [J. Chem. Phys. 111, 9009 (1999)]. The AAF crystal, in particular, shows interesting changes in the temperature dependence of magnetic susceptibility when the ferromagnetic exchange coupling constant is varied. We especially show that the susceptibility anomalies of molecular crystals fit naturally within the framework of the extended magnon-theoretical formalism, and do not necessarily imply a FM --> AFM or a reverse phase transition. A real system, molecular crystal of 2,4,6-triphenylverdazyl (2,4,6-TPV), has been investigated here. It was previously interpreted as an AAF system from observed susceptibility data [Tomiyoshi et al., Phys. Rev. B 49, 16031 (1994)]. The trend of the temperature dependence of magnetic susceptibility studied in the present work also indicates that the crystal belongs to the AAF category with a less prominent FM exchange coupling constant. To reinforce our conclusions, we have adopted a two-pronged strategy. First, the geometry of the 2,4,6-TPV monomer has been optimized here by ab initio unrestricted Hartree-Fock (UHF) calculations using the STO-3G basis set. The optimized geometry is almost planar. A subsequent calculation has been carried out with the phenyl rings twisted out of the plane of the nitrogen atoms. The STO-3G optimized geometry, and the same geometry except for the twisted phenyl rings, have been used to perform ab initio coupled-cluster (UCCSD-T) calculations with the same basis, and UHF as well as density-functional (UB3LYP) calculations using the 6-31G basis set. The calculated data can easily rationalize the twists while the species remains in crystal. The magnetic category of the crystal has been unambiguously confirmed as AFA from ab initio UHF and UB3LYP calculations of the total energy in different spin states of dimers and trimers along the crystal axes. The computed energy values, however, fail to yield accurate estimates of the exchange coupling constants Ja, Jb, and Jc, because the latter are on the order of 1kBK corresponding to energy differences on the order of 10(-6) hartree between different spin states. In the second approach, the observed features of the susceptibility minimum and maximum have been used to determine the best values of the exchange coupling constants from the theoretical formulas for an anisotropic AFA crystal. The AFM (Ja and Jc) and FM (Jb) exchange coupling constants and the Neel temperature (TN) found from this analysis correspond to Ja + Jc = -1.05 kBK, Jb = 1.35 kBK, and TN = 1.75 K. The calculated J values significantly differ from those estimated from a linear Heisenberg chain model, but generate a susceptibility versus temperature graph that mimics the experimental plot.
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Affiliation(s)
- Sambhu N Datta
- Department of Chemistry, Indian Institute of Technology-Bombay, Powai, Mumbai 400076, India.
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Mukai K, Senba N, Hatanaka T, Minakuchi H, Ohara K, Taniguchi M, Misaki Y, Hosokoshi Y, Inoue K, Azuma N. Molecular Paramagnetic Semiconductor: Crystal Structures and Magnetic and Conducting Properties of the Ni(dmit)2 Salts of 6-Oxoverdazyl Radical Cations (dmit = 1,3-Dithiol-2-thione-4,5-dithiolate). Inorg Chem 2003; 43:566-76. [PMID: 14731018 DOI: 10.1021/ic030068q] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Four kinds of 1:1 and 1:3 salts of 3-[4-(trimethylammonio)phenyl]-1,5-diphenyl-6-oxoverdazyl radical cation ([1](+)) and its mono- and dimethyl derivatives ([2](+) and [3](+)) with Ni(dmit)(2) anions (dmit = 1,3-dithiol-2-thione-4,5-dithiolate) ([1](+)[Ni(dmit)(2)](-) (4), [2](+)[Ni(dmit)(2)](-) (5), [3](+)[Ni(dmit)(2)](-) (6), and [1](+)[Ni(dmit)(2)](3)(-) (7)) have been prepared, and the magnetic susceptibilities (chi(M)) have been measured between 1.8 and 300 K. The chi(M) values of salts 5 and 7 can be well reproduced by the sum of the contributions from (i). a Curie-Weiss system with a Curie constant of 0.376 (K emu)/mol and negative Weiss constants (THETAV;) of -0.4 and -1.7 K and (ii). a dimer system with strong negative exchange interactions of 2J/k(B) = -354 and -258 K, respectively. The dimer formations in Ni(dmit)(2) anions have been ascertained by the crystal structure analyses of salts 4-6. In salts 4 and 6, Ni(dmit)(2) dimer molecules are sandwiched between two verdazyl cations, indicating the formation of a linear tetramer in 4 and 6. The magnetic susceptibility data for salts 4 and 6 have been fitted to a linear tetramer model using an end exchange interaction of 2J(1)/k(B) = -600 K and a central interaction of 2J(2)/k(B) = -280 K for 4 and 2J(1)/k(B) = -30 K and 2J(2)/k(B) = -580 K for 6, respectively. The results of the temperature dependence of the g(T) value in salts 4-6 obtained by ESR measurement also support the above analyses. The 1:1 salts 4-6 are insulators. On the other hand, the conductivity of the 1:3 salt 7 at 20 degrees C was sigma = 0.10 S cm(-)(1) with an activation energy E(A) = 0.099 eV, showing the semiconductor property. Salt 7 is a new molecular paramagnetic semiconductor.
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Affiliation(s)
- K Mukai
- Department of Chemistry, Faculty of Science, Ehime University, Matsuyama 790-8577, Graduate School of Engineering, Kyoto University, Kyoto 606-8501, Japan.
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Mukai K, Hatanaka T, Senba N, Nakayashiki T, Misaki Y, Tanaka K, Ueda K, Sugimoto T, Azuma N. Magnetic semiconductor: structural, magnetic, and conducting properties of the salts of the 6-oxoverdazyl radical cation with M(dmit)(2) anions (M = Ni, Zn, Pd, and Pt, dmit = 1,3-dithiol-2-thione-4,5-dithiolate). Inorg Chem 2002; 41:5066-74. [PMID: 12354039 DOI: 10.1021/ic020212s] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Five kinds of (1:1), (1:3), and (2:1) salts of 3-[4-(diethylmethylammonio)phenyl]-1,5-diphenyl-6-oxoverdazyl radical cation [V](+) with M(dmit)(2) anions (M = Ni, Zn, Pd, and Pt, dmit = 1,3-dithiol-2-thione-4,5-dithiolate) ([V](+)[Ni(dmit)(2)](-) (1), [V](+)[Ni(dmit)(2)](3)(-) (2), [V](+)(2)[Zn(dmit)(2)](2-) (3), [V](+)(2)[Pd(dmit)(2)](2-) (4), and [V](+)(2)[Pt(dmit)(2)](2-) (5)) and an iodide salt of [V](+) ([V](+)[I](-) (6)) have been prepared, and the magnetic susceptibilities (chi(M) values) have been measured between 1.8 and 300 K. The chi(M) of the (1:1) Ni salt (1) can be well reproduced by the sum of the contributions from (i) a Curie-Weiss system with a Curie constant (C) of 0.376 K emu/mol and a negative Weiss constant (theta) of -1.5 K and (ii) the one-dimensional Heisenberg antiferromagnetic alternating chain system with 2J(A-B)/k(B) = -274 K (alternation parameter alpha = J(A-C)/J(A-B) = 0.2). The chi(M) of the (1:3) Ni salt (2) can be well explained by the two-term contributions from (i) the Curie-Weiss system with C = 0.376 K emu/mol and theta = -5.0 K and (ii) the dimer system with 2J/k(B) = -258 K. The magnetic properties of 1 and 2 were discussed based on the results obtained by crystal structure analysis and ESR measurements of 1 and 2. The chi(M) values of the (2:1) Zn, Pd, Pt salts 3, 4, and 5 and [V](+)[I](-) salt 6 follow the Curie-Weiss law with C = 0.723, 0.713, 0.712, and 0.342 K emu/mol and theta = -2.8, -3.1, -2.6, and +0.02 K, respectively, indicating that only the spins of the verdazyl radical cation contribute to the magnetic property of these salts. The salts 1, 3, and 5 are insulators. On the other hand, the conductivity (sigma) of the Ni salt 2 and Pd salt 4 at 20 degrees C was sigma = 8.9 x 10(-2) and 1.3 x 10(-4) S cm(-)(1) with an activation energy E(A) = 0.11 and 0.40 eV, respectively. The salts 2 and 4 are new molecular magnetic semiconductors.
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Affiliation(s)
- K Mukai
- Department of Chemistry, Faculty of Science, Ehime University, Matsuyama 790-8577, Japan.
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Mukai K, Matsubara M, Hisatou H, Hosokoshi Y, Inoue K, Azuma N. Anomalous Magnetic Behavior in Three Kinds of 3-(Aryl-substituted)-1,5-diphenylverdazyl Radical Crystals (p-FPDV, p-PyDV and m-PyDV) Induced by Frustrated Spin Interaction. J Phys Chem B 2002. [DOI: 10.1021/jp020801j] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- K. Mukai
- Department of Chemistry, Faculty of Science, Ehime University, Matsuyama 790-8577, Japan, and Institute for Molecular Science, Myodaiji, Okazaki 444-8585, Japan
| | - M. Matsubara
- Department of Chemistry, Faculty of Science, Ehime University, Matsuyama 790-8577, Japan, and Institute for Molecular Science, Myodaiji, Okazaki 444-8585, Japan
| | - H. Hisatou
- Department of Chemistry, Faculty of Science, Ehime University, Matsuyama 790-8577, Japan, and Institute for Molecular Science, Myodaiji, Okazaki 444-8585, Japan
| | - Y. Hosokoshi
- Department of Chemistry, Faculty of Science, Ehime University, Matsuyama 790-8577, Japan, and Institute for Molecular Science, Myodaiji, Okazaki 444-8585, Japan
| | - K. Inoue
- Department of Chemistry, Faculty of Science, Ehime University, Matsuyama 790-8577, Japan, and Institute for Molecular Science, Myodaiji, Okazaki 444-8585, Japan
| | - N. Azuma
- Department of Chemistry, Faculty of Science, Ehime University, Matsuyama 790-8577, Japan, and Institute for Molecular Science, Myodaiji, Okazaki 444-8585, Japan
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Miyazaki Y, Sakakibara T, Ferrer JR, Lahti PM, Antorrena G, Palacio F, Sorai M. Heat Capacity and Antiferromagnetic Phase Transition of the Organic Free Radical Magnet, 2-tert-Butylaminoxylbenzimidazole (BABI). J Phys Chem B 2002. [DOI: 10.1021/jp020630i] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuji Miyazaki
- Research Center for Molecular Thermodynamics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan, Department of Chemistry 701, University of Massachusetts, Amherst, Massachusetts 01003-9336, and Instituto de Ciencia de Materiales de Aragón, CSIC−Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Takeshi Sakakibara
- Research Center for Molecular Thermodynamics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan, Department of Chemistry 701, University of Massachusetts, Amherst, Massachusetts 01003-9336, and Instituto de Ciencia de Materiales de Aragón, CSIC−Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Jacqueline R. Ferrer
- Research Center for Molecular Thermodynamics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan, Department of Chemistry 701, University of Massachusetts, Amherst, Massachusetts 01003-9336, and Instituto de Ciencia de Materiales de Aragón, CSIC−Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Paul M. Lahti
- Research Center for Molecular Thermodynamics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan, Department of Chemistry 701, University of Massachusetts, Amherst, Massachusetts 01003-9336, and Instituto de Ciencia de Materiales de Aragón, CSIC−Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Guillermo Antorrena
- Research Center for Molecular Thermodynamics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan, Department of Chemistry 701, University of Massachusetts, Amherst, Massachusetts 01003-9336, and Instituto de Ciencia de Materiales de Aragón, CSIC−Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Fernando Palacio
- Research Center for Molecular Thermodynamics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan, Department of Chemistry 701, University of Massachusetts, Amherst, Massachusetts 01003-9336, and Instituto de Ciencia de Materiales de Aragón, CSIC−Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Michio Sorai
- Research Center for Molecular Thermodynamics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan, Department of Chemistry 701, University of Massachusetts, Amherst, Massachusetts 01003-9336, and Instituto de Ciencia de Materiales de Aragón, CSIC−Universidad de Zaragoza, 50009 Zaragoza, Spain
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Mukai K, Jinno S, Shimobe Y, Azuma N, Hosokoshi Y, Inoue K, Taniguchi M, Misaki Y, Tanaka K. Syntheses and properties of genuine organic magnetic conductors: (1:1) and (1:2) salts of ethyl-pyridinium-substituted verdazyl radicals with TCNQ. Polyhedron 2001. [DOI: 10.1016/s0277-5387(01)00651-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Datta SN, Misra A. On the ferromagnetic and antiferromagnetic properties of molecular crystals. J Chem Phys 1999. [DOI: 10.1063/1.480244] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Magneto-Structural Correlation in Two Isomeric Series of Nitronyl Nitroxide Molecular Magnets: Intermolecular Interactions Relevant to Ferromagnetic Exchange in Naphthyl and Quinolyl Derivatives. J SOLID STATE CHEM 1999. [DOI: 10.1006/jssc.1999.8144] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Mukai K, Nuwa M, Morishita T, Muramatsu T, Kobayashi TC, Amaya K. Observation of weak ferromagnetism in organic verdazyl radical crystal, p-CyDpTV. Chem Phys Lett 1997. [DOI: 10.1016/s0009-2614(97)00529-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Mukai K, Wada N, Jamali JB, Achiwa N, Narumi Y, Kindo K, Kobayashi T, Amaya K. Magnetic properties of 1,5-dimethyl-6-oxoverdazyl radical crystals. Observation of a spin-Peierls transition in 3-(4-cyanophenyl)-1,5-dimethyl-6-oxoverdazyl radical, p-CyDOV. Chem Phys Lett 1996. [DOI: 10.1016/0009-2614(96)00577-5] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Wang YQ, Xiong YS, Yi L, Yao KL. Spin-wave excitation in a quasi-one-dimensional organic ferromagnet. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:8481-8485. [PMID: 9982352 DOI: 10.1103/physrevb.53.8481] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Kremer RK, Kanellakopulos B, Bele P, Brunner H, Neugebauer FA. Weak ferromagnetism and magnetically modulated microwave absorption at low magnetic fields in 1,3,5-triphenyl-6-oxoverdazyl. Chem Phys Lett 1994. [DOI: 10.1016/0009-2614(94)01137-0] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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