1
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Cox T, Gvozdetskyi V, Bertolami M, Lee S, Shipley K, Lebedev OI, Zaikina JV. Clathrate XI K
58
Zn
122
Sb
207
: A New Branch on the Clathrate Family Tree. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202011120] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tori Cox
- Department of Chemistry Iowa State University Ames Iowa 50011 USA
| | | | - Mark Bertolami
- Department of Chemistry Iowa State University Ames Iowa 50011 USA
| | - Shannon Lee
- Department of Chemistry Iowa State University Ames Iowa 50011 USA
- Ames Laboratory US DOE Iowa State University Ames Iowa 50011 USA
| | - Kristian Shipley
- Department of Chemistry Iowa State University Ames Iowa 50011 USA
| | - Oleg I. Lebedev
- Laboratoire CRISMAT ENSICAEN CNRS UMR 6508 14050 Caen France
| | - Julia V. Zaikina
- Department of Chemistry Iowa State University Ames Iowa 50011 USA
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2
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Cox T, Gvozdetskyi V, Bertolami M, Lee S, Shipley K, Lebedev OI, Zaikina JV. Clathrate XI K
58
Zn
122
Sb
207
: A New Branch on the Clathrate Family Tree. Angew Chem Int Ed Engl 2020; 60:415-423. [DOI: 10.1002/anie.202011120] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Indexed: 11/09/2022]
Affiliation(s)
- Tori Cox
- Department of Chemistry Iowa State University Ames Iowa 50011 USA
| | | | - Mark Bertolami
- Department of Chemistry Iowa State University Ames Iowa 50011 USA
| | - Shannon Lee
- Department of Chemistry Iowa State University Ames Iowa 50011 USA
- Ames Laboratory US DOE Iowa State University Ames Iowa 50011 USA
| | - Kristian Shipley
- Department of Chemistry Iowa State University Ames Iowa 50011 USA
| | - Oleg I. Lebedev
- Laboratoire CRISMAT ENSICAEN CNRS UMR 6508 14050 Caen France
| | - Julia V. Zaikina
- Department of Chemistry Iowa State University Ames Iowa 50011 USA
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3
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Baran V, Hlukhyy V, Fässler TF. A New Type of 2 × 2 × 2 Superstructure of Clathrate-I with I43 dSymmetry in A8Sn 46-x-yTl x⬜ y( A= Rb, Cs). Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201800290] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Volodymyr Baran
- Department of Chemistry; Technische Universität München; Lichtenbergstr. 4 85747 Garching Germany
| | - Viktor Hlukhyy
- Department of Chemistry; Technische Universität München; Lichtenbergstr. 4 85747 Garching Germany
| | - Thomas. F. Fässler
- Department of Chemistry; Technische Universität München; Lichtenbergstr. 4 85747 Garching Germany
- Heinz Maier-Leibnitz Zentrum; Technische Universität München; Lichtenbergstr. 1 85747 Garching Germany
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4
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Abstract
Empty spaces are abhorred by nature, which immediately rushes in to fill the void. Humans have learnt pretty well how to make ordered empty nanocontainers, and to get useful products out of them. When such an order is imparted to molecules, new properties may appear, often yielding advanced applications. This review illustrates how the organized void space inherently present in various materials: zeolites, clathrates, mesoporous silica/organosilica, and metal organic frameworks (MOF), for example, can be exploited to create confined, organized, and self-assembled supramolecular structures of low dimensionality. Features of the confining matrices relevant to organization are presented with special focus on molecular-level aspects. Selected examples of confined supramolecular assemblies - from small molecules to quantum dots or luminescent species - are aimed to show the complexity and potential of this approach. Natural confinement (minerals) and hyperconfinement (high pressure) provide further opportunities to understand and master the atomistic-level interactions governing supramolecular organization under nanospace restrictions.
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Affiliation(s)
- Gloria Tabacchi
- Department of Science and High Technology, University of Insubria, Via Valleggio, 9 I-22100, Como, Italy
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5
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Novikov VV, Pilipenko KS, Matovnikov AV, Mitroshenkov NV, Kornev BI, Likhanov MS, Tyablikov AS, Shevelkov AV. Dynamics of the crystal structure of tin-based type-I clathrates with different degrees of disorder in their cationic frameworks. Phys Chem Chem Phys 2017; 19:27725-27730. [PMID: 28984324 DOI: 10.1039/c7cp05023b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The temperature dependencies of heat capacity, CP(T), and cubic unit cell parameter, a(T), were experimentally obtained in the range of 2-300 K for the compounds Sn24P19.2I8, Sn20Zn4P20.8I8, and Sn17Zn7P22I8, which belong to a family of type-I clathrates. The experimental data were analyzed in the frames of the Debye-Einstein approximation, further accounting for the contributions of positional disorder in the clathrate frameworks as well as those of defect modes arising from the distribution of guest atoms over unequal in energy but close in space positions inside the framework cages. By fitting the experimental data, the Debye and Einstein characteristic temperatures describing the dynamics of the framework and guest atoms, respectively, were obtained. Their analysis revealed peculiar dependencies of the characteristic temperatures upon the number of substituted zinc atoms and the concentration of vacancies in the framework, which are discussed in this paper.
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Affiliation(s)
- V V Novikov
- Bryansk Physical Laboratory Petrovsky Bryansk State University, 14, Bezhitskaja St., 241036 Bryansk, Russia.
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6
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Zhang H, Peng W, Mu G, Hu T, Huang F, Xie X. Synthesis, Structure, and Properties of Clathrate Si30.3(8)P15.7(8)Se7.930(3). Chemistry 2017; 23:9505-9516. [DOI: 10.1002/chem.201700972] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Hui Zhang
- Key Laboratory of Functional Materials for InformaticsShanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences 865 Changning Road Shanghai 200050 P.R. China
- CAS Center for Excellence in Superconducting Electronics Shanghai 200050 P.R. China
| | - Wei Peng
- Key Laboratory of Functional Materials for InformaticsShanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences 865 Changning Road Shanghai 200050 P.R. China
- CAS Center for Excellence in Superconducting Electronics Shanghai 200050 P.R. China
| | - Gang Mu
- Key Laboratory of Functional Materials for InformaticsShanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences 865 Changning Road Shanghai 200050 P.R. China
- CAS Center for Excellence in Superconducting Electronics Shanghai 200050 P.R. China
| | - Tao Hu
- Key Laboratory of Functional Materials for InformaticsShanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences 865 Changning Road Shanghai 200050 P.R. China
- CAS Center for Excellence in Superconducting Electronics Shanghai 200050 P.R. China
| | - Fuqiang Huang
- CAS Center for Excellence in Superconducting Electronics Shanghai 200050 P.R. China
- State Key Laboratory of High Performance Ceramics and Superfine MicrostructureShanghai Institute of Ceramics InstitutionChinese Academy of Sciences 1295 Dingxi Road Shanghai 200050 P.R. China
| | - Xiaoming Xie
- Key Laboratory of Functional Materials for InformaticsShanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences 865 Changning Road Shanghai 200050 P.R. China
- CAS Center for Excellence in Superconducting Electronics Shanghai 200050 P.R. China
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7
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Synthesis and structures of type-I clathrates: Rb6Na2Ge44.89(1), Cs6Na2Zn4Ge42 and Cs6.40(1)Na1.60(1)Ga8Ge38. J SOLID STATE CHEM 2016. [DOI: 10.1016/j.jssc.2016.07.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Zhang H, Mu G, Huang F, Xie X. New clathrates of Rb7.50(1)Tl0.50(1)Ge46and K7.62(1)Tl0.38(1)Ge45.34(3). RSC Adv 2016. [DOI: 10.1039/c6ra14614g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Rb7.50(1)Tl0.50(1)Ge46and K7.62(1)Tl0.38(1)Ge45.34(3)are synthesized and characterized.
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Affiliation(s)
- Hui Zhang
- State Key Laboratory of Functional Materials for Informatics and Shanghai Center for Superconductivity
- Shanghai Institute of Microsystem and Information Technology
- Chinese Academy of Sciences
- Shanghai 200050
- China
| | - Gang Mu
- State Key Laboratory of Functional Materials for Informatics and Shanghai Center for Superconductivity
- Shanghai Institute of Microsystem and Information Technology
- Chinese Academy of Sciences
- Shanghai 200050
- China
| | - Fuqiang Huang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures
- Shanghai Institute of Ceramics
- Chinese Academy of Sciences
- Shanghai 200050
- China
| | - Xiaoming Xie
- State Key Laboratory of Functional Materials for Informatics and Shanghai Center for Superconductivity
- Shanghai Institute of Microsystem and Information Technology
- Chinese Academy of Sciences
- Shanghai 200050
- China
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9
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Zhang H, Xu X, Li W, Mu G, Huang FQ, Xie XM. Type-I clathrates of K7.69(2)Cu2.94(6)Ge43.06(6)and Rb8Ag2.79(4)Ge43.21(4). RSC Adv 2015. [DOI: 10.1039/c5ra09382a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Type-I clathrates of K7.69(2)Cu2.94(6)Ge43.06(6)and Rb8Ag2.79(4)Ge43.21(4)are successfully synthesized.
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Affiliation(s)
- Hui Zhang
- CAS Key Laboratory of Materials for Energy Conversion
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures
- Shanghai Institute of Ceramics
- Chinese Academy of Sciences
- Shanghai 200050
| | - Xuguang Xu
- State Key Laboratory of Functional Materials for Informatics and Shanghai Center for Superconductivity
- Shanghai Institute of Microsystem and Information Technology
- Chinese Academy of Sciences
- Shanghai 200050
- P. R. China
| | - Wei Li
- State Key Laboratory of Functional Materials for Informatics and Shanghai Center for Superconductivity
- Shanghai Institute of Microsystem and Information Technology
- Chinese Academy of Sciences
- Shanghai 200050
- P. R. China
| | - Gang Mu
- State Key Laboratory of Functional Materials for Informatics and Shanghai Center for Superconductivity
- Shanghai Institute of Microsystem and Information Technology
- Chinese Academy of Sciences
- Shanghai 200050
- P. R. China
| | - Fu-Qiang Huang
- CAS Key Laboratory of Materials for Energy Conversion
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures
- Shanghai Institute of Ceramics
- Chinese Academy of Sciences
- Shanghai 200050
| | - Xiao-Ming Xie
- State Key Laboratory of Functional Materials for Informatics and Shanghai Center for Superconductivity
- Shanghai Institute of Microsystem and Information Technology
- Chinese Academy of Sciences
- Shanghai 200050
- P. R. China
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10
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Charkin DO, Demchyna R, Prots Y, Borrmann H, Burkhardt U, Schwarz U, Schnelle W, Plokhikh IV, Kazakov SM, Abakumov AM, Batuk D, Verchenko VY, Tsirlin AA, Curfs C, Grin Y, Shevelkov AV. Two New Arsenides, Eu7Cu44As23 and Sr7Cu44As23, With a New Filled Variety of the BaHg11 Structure. Inorg Chem 2014; 53:11173-84. [PMID: 25265469 DOI: 10.1021/ic5017615] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dmitri O. Charkin
- Department
of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - Roman Demchyna
- National University of Forestry and Wood Technology of Ukraine, Lviv, Ukraine
- Max-Planck-Institut für Chemische Physik fester Stoffe, Dresden, Germany
| | - Yurii Prots
- Max-Planck-Institut für Chemische Physik fester Stoffe, Dresden, Germany
| | - Horst Borrmann
- Max-Planck-Institut für Chemische Physik fester Stoffe, Dresden, Germany
| | - Ulrich Burkhardt
- Max-Planck-Institut für Chemische Physik fester Stoffe, Dresden, Germany
| | - Ulrich Schwarz
- Max-Planck-Institut für Chemische Physik fester Stoffe, Dresden, Germany
| | - Walter Schnelle
- Max-Planck-Institut für Chemische Physik fester Stoffe, Dresden, Germany
| | - Igor V. Plokhikh
- Department
of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - Sergey M. Kazakov
- Department
of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - Artem M. Abakumov
- Department
of Chemistry, Lomonosov Moscow State University, Moscow, Russia
- EMAT, University of Antwerp, Antwerp, Belgium
| | | | - Valery Yu. Verchenko
- Department
of Chemistry, Lomonosov Moscow State University, Moscow, Russia
- National Institute of Chemical Physics and Biophysics, Tallinn, Estonia
| | | | - Caroline Curfs
- European Synchrotron Radiation Facility, Grenoble, France
| | - Yuri Grin
- Max-Planck-Institut für Chemische Physik fester Stoffe, Dresden, Germany
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11
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Huai WJ, Shen JN, Lin H, Chen L, Wu LM. Electron-Deficient Telluride Cs3Cu20Te13 with Sodalite-Type Network: Syntheses, Structures, and Physical Properties. Inorg Chem 2014; 53:5575-80. [PMID: 24823445 DOI: 10.1021/ic500291v] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wen-Juan Huai
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, People’s Republic of China
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing, 100049, People’s Republic of China
| | - Jin-Ni Shen
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, People’s Republic of China
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing, 100049, People’s Republic of China
| | - Hua Lin
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, People’s Republic of China
| | - Ling Chen
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, People’s Republic of China
| | - Li-Ming Wu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, People’s Republic of China
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12
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Zhang H, Baitinger M, Fang L, Schnelle W, Borrmann H, Burkhardt U, Ormeci A, Zhao JT, Grin Y. Synthesis and Properties of Type-I Clathrate Phases Rb8–x–tKx□tAuyGe46–y. Inorg Chem 2013; 52:9720-6. [DOI: 10.1021/ic3024315] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- H. Zhang
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden,
Germany
- Key Laboratory
of Transparent Opto-Functional Inorganic Materials, Shanghai Institute
of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China
| | - M. Baitinger
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden,
Germany
| | - L. Fang
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden,
Germany
- Key Laboratory of Nonferrous Materials and New Processing
Technology, Ministry of Education, Guilin University of Technology, 12 Jiangan Road, Qixing, Guilin, Guangxi,
China
| | - W. Schnelle
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden,
Germany
| | - H. Borrmann
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden,
Germany
| | - U. Burkhardt
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden,
Germany
| | - A. Ormeci
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden,
Germany
| | - J. T. Zhao
- Key Laboratory
of Transparent Opto-Functional Inorganic Materials, Shanghai Institute
of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China
| | - Yu. Grin
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden,
Germany
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13
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Kirsanova MA, Mori T, Maruyama S, Abakumov AM, Tendeloo GV, Olenev A, Shevelkov AV. Cationic Clathrate of Type-III Ge172–xPxTey (y ≈ 21.5, x ≈ 2y): Synthesis, Crystal Structure and Thermoelectric Properties. Inorg Chem 2013; 52:8272-9. [DOI: 10.1021/ic401203r] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Maria A. Kirsanova
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, Moscow 119991, Russia
| | - Takao Mori
- International Center for Materials Nanoarchitectonics
(MANA), National Institute for Materials Science (NIMS), 305-0044 Tsukuba, Japan
| | - Satofumi Maruyama
- International Center for Materials Nanoarchitectonics
(MANA), National Institute for Materials Science (NIMS), 305-0044 Tsukuba, Japan
| | - Artem M. Abakumov
- EMAT, University of Antwerp, Groenenborgerlaan
171, B-2020, Antwerp, Belgium
| | | | - Andrei Olenev
- “SineTheta” Ltd., scientific
park of Lomonosov Moscow State University, Leninskie Gory, 1-77, Moscow
119991, Russia
| | - Andrei V. Shevelkov
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, Moscow 119991, Russia
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14
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Kirsanova MA, Shevelkov AV. Clathrates and semiclathrates of Type-I: crystal structure and superstructures. Z KRIST-CRYST MATER 2013. [DOI: 10.1524/zkri.2013.1608] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
The review surveys the crystal chemistry of inorganic compounds belonging to the structure type of clathrate-I. The compounds of this family exhibit an unexpected variety of both chemical composition and features of the crystal structure. The basic crystal structure of clathrate-I and different variants of its modification, such as siting, position splitting, and superstructure formation including transformation to semiclathrates, are considered in terms of the group-subgroup relationship.
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15
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Kirsanova MA, Mori T, Maruyama S, Matveeva M, Batuk D, Abakumov AM, Gerasimenko AV, Olenev AV, Grin Y, Shevelkov AV. Synthesis, Structure, and Transport Properties of Type-I Derived Clathrate Ge46–xPxSe8–y (x = 15.4(1); y = 0–2.65) with Diverse Host–Guest Bonding. Inorg Chem 2012; 52:577-88. [DOI: 10.1021/ic3011025] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Maria A. Kirsanova
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Takao Mori
- International Center for Materials
Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 305-0044 Tsukuba, Japan
| | - Satofumi Maruyama
- International Center for Materials
Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 305-0044 Tsukuba, Japan
| | - Maria Matveeva
- EMAT, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
| | - Dmitry Batuk
- EMAT, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
| | - Artem M. Abakumov
- EMAT, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
| | | | - Andrei V. Olenev
- “SineTheta” Ltd., Scientific Park of Lomonosov Moscow State University, 119991 Moscow,
Russia
| | - Yuri Grin
- Max-Planck-Institut für Chemische Physik fester Stoffe, Dresden,
Germany
| | - Andrei V. Shevelkov
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
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16
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Abramchuk NS, Carrillo-Cabrera W, Veremchuk I, Oeschler N, Olenev AV, Prots Y, Burkhardt U, Dikarev EV, Grin J, Shevelkov AV. Homo- and heterovalent substitutions in the new clathrates I Si30P16Te(8-x)Se(x) and Si(30+x)P(16-x)Te(8-x)Br(x): synthesis, crystal structure, and thermoelectric properties. Inorg Chem 2012; 51:11396-405. [PMID: 23072375 DOI: 10.1021/ic3010097] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The new cationic clathrates I Si(30)P(16)Te(8-x)Se(x) and Si(30+x)P(16-x)Te(8-x)Br(x) were synthesized by the standard ampule technique. The Si(30)P(16)Te(8-x)Se(x) (x = 0-2.3) clathrates crystallize in the cubic space group Pm3̅n with the unit cell parameter a ranging from 9.9382(2) to 9.9696(1) Å. In the case of the Si(30+x)P(16-x)Te(8-x)Br(x) (x = 1-6.4) clathrates, the lattice parameter varies from 9.9720(8) to 10.0405(1) Å; at lower Si/P ratios (x = 1-3) the ordering of bromine atoms induces the splitting of the guest positions and causes the transformation from the space group Pm3n to Pm3. Irrespective of the structure peculiarities, the normal temperature motion of the guest atoms inside the oversized cages of the framework is observed. The title clathrates possess very low thermal expansion coefficients ranging from 6.6 × 10(-6) to 1.0 × 10(-5) K(-1) in the temperature range of 298-1100 K. The characteristic Debye temperature is about 490 K. Measurements of the electrical resistivity and thermopower showed typical behavior of p-type thermally activated semiconductors, whereas the temperature behavior of the thermal conductivity is glasslike and in general consistent with the PGEC concept. The highest value of the thermoelectric figure of merit (ZT = 0.1) was achieved for the Br-bearing clathrate Si(32.1(2))P(13.9(2))Te(6.6(2))Br(1.0(1)) at 750 K.
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Affiliation(s)
- Nikolay S Abramchuk
- Max-Planck-Institute für Chemische Physik fester Stoffe, Noethnitzer Str. 40, 01187 Dresden, Germany.
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17
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Kirsanova MA, Reshetova LN, Olenev AV, Shevelkov AV. On the crystal structure of the germanium-based cationic clathrates [Ge38.3Sb7.7]I7.44, [Ge38.1P7.9]I8, and [Ge30.5Sn7.7P7.75]I7.88. RUSS J COORD CHEM+ 2012. [DOI: 10.1134/s1070328412030062] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Kelm EA, Olenev AV, Bykov MA, Sobolev AV, Presniakov IA, Kulbachinskii VA, Kytin VG, Shevelkov AV. Synthesis, Crystal Structure, and Thermoelectric Properties of Clathrates in the Sn-In-As-I System. Z Anorg Allg Chem 2011. [DOI: 10.1002/zaac.201100287] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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