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Frąckowiak A, Świetlik R, Jeannin O, Fourmigué M, Li W, Dressel M. Charge localization in 1D tetramerized organic conductors: the special case of (tTTF) 2ClO 4. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2019; 31:155601. [PMID: 30669131 DOI: 10.1088/1361-648x/ab00b5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We report a detailed structural and spectroscopic study of the 1D 2:1 cation radical salt (tTTF)2ClO4, where tTTF = trimethylenetetrathiafulvalene, which exhibits a semiconductor-semiconductor phase transition at ca. T = 137 K. Crystal structures are determined above and below the transition; the tTTF molecules in stacks are grouped into weakly interacting tetramers. The reorganization of tTTF stacks is accompanied with an order-disorder transition in anion sublattice. Polarized infrared and Raman spectra of (tTTF)2ClO4 are measured in the broad frequency range as a function of the temperature (10-293 K). The structural and vibrational features are investigated to elucidate the origin of the semiconductor-semiconductor phase transition. We discuss the electron-intramolecular vibration coupling effects in the vibrational spectra of (tTTF)2ClO4 and identify signatures of high- and low-temperature states of charge localization in the tetramerized system. Both the C=C and C-S stretching modes of tTTF give evidence of strong charge distribution fluctuations in conducting stacks for T > 137 K, which are responsible for the appearance of molecules with charge +1e, and charge localization in tTTF tetramers for T < 137 K. The uniqueness of the salt (tTTF)2ClO4 in comparison with other tetramerized 1D systems is discussed.
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Affiliation(s)
- Arkadiusz Frąckowiak
- Institute of Molecular Physics, Polish Academy of Sciences, ul. Mariana Smoluchowskiego 17, 60-179 Poznań, Poland
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Bartashevich E, Mukhitdinova S, Yushina I, Tsirelson V. Electronic criterion for categorizing the chalcogen and halogen bonds: sulfur–iodine interactions in crystals. ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS 2019; 75:117-126. [DOI: 10.1107/s2052520618018280] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 12/24/2018] [Indexed: 11/10/2022]
Abstract
Diversity of mutual orientations of Y–S and I–X and covalent bonds in molecular crystals complicate categorizing noncovalent chalcogen and halogen bonds. Here, the different types of S...I interactions with short interatomic distances are analysed. The selection of S...I interactions for the categorization of the chalcogen and halogen bonds has been made using angles that determine the mutual orientation of electron lone pairs and σ-holes interacted S and I atoms. In complicated cases of noncovalent interactions with `hole-to-hole' of S and I orientations, distinguishing the chalcogen and halogen bonds is only possible if the atom is uniquely determined, which also provides the electrophilic site. The electronic criterion for chalcogen/halogen bonds categorizing that is based on analysis of dispositions of electron density and electrostatic potential minima along the interatomic lines has been suggested and its effectiveness has been demonstrated.
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Abstract
The halogen bond occurs when there is evidence of a net attractive interaction between an electrophilic region associated with a halogen atom in a molecular entity and a nucleophilic region in another, or the same, molecular entity. In this fairly extensive review, after a brief history of the interaction, we will provide the reader with a snapshot of where the research on the halogen bond is now, and, perhaps, where it is going. The specific advantages brought up by a design based on the use of the halogen bond will be demonstrated in quite different fields spanning from material sciences to biomolecular recognition and drug design.
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Affiliation(s)
- Gabriella Cavallo
- Laboratory
of Nanostructured Fluorinated Materials (NFMLab), Department of Chemistry,
Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Via L. Mancinelli 7, I-20131 Milano, Italy
| | - Pierangelo Metrangolo
- Laboratory
of Nanostructured Fluorinated Materials (NFMLab), Department of Chemistry,
Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Via L. Mancinelli 7, I-20131 Milano, Italy
- VTT-Technical
Research Centre of Finland, Biologinkuja 7, 02150 Espoo, Finland
| | - Roberto Milani
- VTT-Technical
Research Centre of Finland, Biologinkuja 7, 02150 Espoo, Finland
| | - Tullio Pilati
- Laboratory
of Nanostructured Fluorinated Materials (NFMLab), Department of Chemistry,
Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Via L. Mancinelli 7, I-20131 Milano, Italy
| | - Arri Priimagi
- Department
of Chemistry and Bioengineering, Tampere
University of Technology, Korkeakoulunkatu 8, FI-33101 Tampere, Finland
| | - Giuseppe Resnati
- Laboratory
of Nanostructured Fluorinated Materials (NFMLab), Department of Chemistry,
Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Via L. Mancinelli 7, I-20131 Milano, Italy
| | - Giancarlo Terraneo
- Laboratory
of Nanostructured Fluorinated Materials (NFMLab), Department of Chemistry,
Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Via L. Mancinelli 7, I-20131 Milano, Italy
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Jeannin O, Canadell E, Auban-Senzier P, Fourmigué M. Correlating conduction properties with the molecular symmetry: segregation of Z and E isomers in the charge-assisted, halogen-bonded cocrystal [(Z,E)-Me2I2TTF]2Br. Chem Commun (Camb) 2016; 52:308-11. [DOI: 10.1039/c5cc08176a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Co-crystallization of theZandEisomers of Me2I2TTF in a mixed-valence bromide salt leads to segregated stacks with two different charge order patterns and associated charge-assisted halogen bonding.
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Affiliation(s)
- Olivier Jeannin
- Institut des Sciences Chimiques de Rennes
- Université Rennes 1
- UMR CNRS 6226
- 35042 Rennes
- France
| | - Enric Canadell
- Institut de Ciència de Materials de Barcelona (CSIC)
- E-08193 Bellaterra
- Spain
| | - Pascale Auban-Senzier
- Laboratoire de Physique des Solides
- Université Paris-Sud
- UMR CNRS 8502
- 91405 Orsay
- France
| | - Marc Fourmigué
- Institut des Sciences Chimiques de Rennes
- Université Rennes 1
- UMR CNRS 6226
- 35042 Rennes
- France
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Oliveira S, Ministro J, Santos IC, Belo D, Lopes EB, Rabaça S, Canadell E, Almeida M. Bilayer Molecular Metals Based on Dissymmetrical Electron Donors. Inorg Chem 2015; 54:6677-9. [PMID: 26125110 DOI: 10.1021/acs.inorgchem.5b01240] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The electrocrystallization from solutions of cyanobenzene-ethylenedithio-tetrathiafulvalene (CNB-EDT-TTF) in the presence of different anions X = ClO4(-), PF6(-), and I3(-), affords a new type of 2D molecular metals with composition (CNB-EDT-TTF)4X based on an unprecedented bilayer structure of the donors induced by effective head to head interdonor interactions through the nitrile groups, which is responsible for 2D metallic systems with unusual properties such as the higher band filling, larger effective mass of carriers, and almost degenerated double Fermi surfaces.
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Affiliation(s)
- Sandrina Oliveira
- †C2TN, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, P-2695-066 Bobadela LRS, Portugal
| | - José Ministro
- †C2TN, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, P-2695-066 Bobadela LRS, Portugal
| | - Isabel C Santos
- †C2TN, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, P-2695-066 Bobadela LRS, Portugal
| | - Dulce Belo
- †C2TN, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, P-2695-066 Bobadela LRS, Portugal
| | - Elsa B Lopes
- †C2TN, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, P-2695-066 Bobadela LRS, Portugal
| | - Sandra Rabaça
- †C2TN, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, P-2695-066 Bobadela LRS, Portugal
| | - Enric Canadell
- ‡Institut de Ciencia de Materials de Barcelona (ICMAB-CSIC), Campus UAB, E-08193 Bellaterra, Spain
| | - Manuel Almeida
- †C2TN, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, P-2695-066 Bobadela LRS, Portugal
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Gerhardt V, Egert E. Cocrystals of 6-chlorouracil and 6-chloro-3-methyluracil: exploring their hydrogen-bond-based synthon motifs with several triazine and pyrimidine derivatives. ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS 2015; 71:209-20. [DOI: 10.1107/s2052520615003790] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 02/23/2015] [Indexed: 11/11/2022]
Abstract
In order to obtain complexes held together by hydrogen as well as halogen bonds, 6-chlorouracil [6-chloropyrimidin-2,4(1H,3H)-dione; 6CU] and its 3-methyl derivative [6-chloro-3-methylpyrimidin-2,4(1H,3H)-dione; M6CU] were cocrystallized with 2,4,6-triaminopyrimidine and the three triazine derivatives 2,4,6-triamino-1,3,5-triazine (melamine), 2,4-diamino-6-methyl-1,3,5-triazine and 2-chloro-4,6-diamino-1,3,5-triazine, which all offer complementary hydrogen-bonding sites. Three of these compounds form cocrystals with 6CU; however, melamine yielded only a new pseudopolymorph with 6CU, but formed a cocrystal with M6CU. All six cocrystals contain solvent molecules (N,N-dimethylformamide,N,N-dimethylacetamide orN-methylpyrrolidin-2-one), whose intermolecular interactions contribute significantly to the stabilization of the crystal packing. Each of these structures comprises chains, which are primarily formed by strong hydrogen bonds with a basic framework built byR22(8) hydrogen bonds of either pure N—H...N or mixed patterns. Solvent molecules are aligned to the border of these chainsviaN—H...O hydrogen bonds. Two of the reported crystal structures containing 6CU show additional Cl...O halogen bonds, which connect the chains to two-dimensional layers, while one weak and one strong Cl...Cl interaction are observed in the two structures in which molecules of M6CU are present.
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Lieffrig J, Niassy AG, Jeannin O, Fourmigué M. Halogen-bonded halide networks from chiral neutral spacers. CrystEngComm 2015. [DOI: 10.1039/c4ce01935k] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Chiral, ditopic, bis-iodinated molecules can form helical networks due to halogen bonding interactions when co-crystallised with halide tetraalkylammonium salts.
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Affiliation(s)
- Julien Lieffrig
- Institut des Sciences Chimiques de Rennes
- Université Rennes 1
- CNRS UMR 6226
- Campus de Beaulieu
- 35042 Rennes, France
| | - Arnode G. Niassy
- Institut des Sciences Chimiques de Rennes
- Université Rennes 1
- CNRS UMR 6226
- Campus de Beaulieu
- 35042 Rennes, France
| | - Olivier Jeannin
- Institut des Sciences Chimiques de Rennes
- Université Rennes 1
- CNRS UMR 6226
- Campus de Beaulieu
- 35042 Rennes, France
| | - Marc Fourmigué
- Institut des Sciences Chimiques de Rennes
- Université Rennes 1
- CNRS UMR 6226
- Campus de Beaulieu
- 35042 Rennes, France
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Organizing Radical Species in the Solid State with Halogen Bonding. Top Curr Chem (Cham) 2014; 359:91-113. [DOI: 10.1007/128_2014_604] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
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