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Chakraborty P, Bera S, Mickel P, Paul A, Shimon LJW, Arnon ZA, Segal D, Král P, Gazit E. Inhibitor-Mediated Structural Transition in a Minimal Amyloid Model. Angew Chem Int Ed Engl 2022; 61:e202113845. [PMID: 34791758 DOI: 10.1002/anie.202113845] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Indexed: 11/06/2022]
Abstract
Despite the fundamental clinical importance of amyloid fibril formation, its mechanism is still enigmatic. Crystallography of minimal amyloid models was a milestone in the understanding of the architecture and biological activities of amyloid fibers. However, the crystal structure of ultimate dipeptide-based amyloids is not yet reported. Herein, we present the crystal structure of a typical amyloid-forming minimal dipeptide, Ac-Phe-Phe-NH2 (Ac-FF-NH2 ), showing a canonical β-sheet structure at the atomic level. The simplicity of the structure helped in investigating amyloid-inhibition using crystallography, never previously reported for larger peptide models. Interestingly, in the presence of an inhibitor, the supramolecular packing of Ac-FF-NH2 molecules rearranged into a supramolecular 2-fold helix (21 helix). This study promotes our understanding of the mechanism of amyloid formation and of the structural transitions that occur during the inhibition process in a most fundamental model.
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Affiliation(s)
- Priyadarshi Chakraborty
- Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Santu Bera
- Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Phil Mickel
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor St, Chicago, IL, 60607, USA
| | - Ashim Paul
- Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Linda J W Shimon
- Department of Chemical Research Support, Weizmann Institute of Science, Rehovot, 76100, Israel
| | - Zohar A Arnon
- Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Daniel Segal
- Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Petr Král
- Departments of Chemistry, Physics, Pharmaceutical Sciences, and Chemical Engineering, University of Illinois at Chicago, 845 West Taylor St, Chicago, IL, 60607, USA
| | - Ehud Gazit
- Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, 6997801, Israel
- Department of Materials Science and Engineering, Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University, Tel Aviv, 6997801, Israel
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2
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Chakraborty P, Bera S, Mickel P, Paul A, Shimon LJW, Arnon ZA, Segal D, Král P, Gazit E. Inhibitor‐Mediated Structural Transition in a Minimal Amyloid Model. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202113845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Priyadarshi Chakraborty
- Shmunis School of Biomedicine and Cancer Research George S. Wise Faculty of Life Sciences Tel Aviv University Tel Aviv 6997801 Israel
| | - Santu Bera
- Shmunis School of Biomedicine and Cancer Research George S. Wise Faculty of Life Sciences Tel Aviv University Tel Aviv 6997801 Israel
| | - Phil Mickel
- Department of Chemistry University of Illinois at Chicago 845 West Taylor St Chicago IL 60607 USA
| | - Ashim Paul
- Shmunis School of Biomedicine and Cancer Research George S. Wise Faculty of Life Sciences Tel Aviv University Tel Aviv 6997801 Israel
| | - Linda J. W. Shimon
- Department of Chemical Research Support Weizmann Institute of Science Rehovot 76100 Israel
| | - Zohar A. Arnon
- Shmunis School of Biomedicine and Cancer Research George S. Wise Faculty of Life Sciences Tel Aviv University Tel Aviv 6997801 Israel
| | - Daniel Segal
- Shmunis School of Biomedicine and Cancer Research George S. Wise Faculty of Life Sciences Tel Aviv University Tel Aviv 6997801 Israel
| | - Petr Král
- Departments of Chemistry Physics Pharmaceutical Sciences and Chemical Engineering University of Illinois at Chicago 845 West Taylor St Chicago IL 60607 USA
| | - Ehud Gazit
- Shmunis School of Biomedicine and Cancer Research George S. Wise Faculty of Life Sciences Tel Aviv University Tel Aviv 6997801 Israel
- Department of Materials Science and Engineering Iby and Aladar Fleischman Faculty of Engineering Tel Aviv University Tel Aviv 6997801 Israel
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3
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Affiliation(s)
- Yunying Xu
- School of Chemistry and Chemical Engineering Shandong University Jinan 250100 P. R. China
| | - Aiyou Hao
- School of Chemistry and Chemical Engineering Shandong University Jinan 250100 P. R. China
| | - Pengyao Xing
- School of Chemistry and Chemical Engineering Shandong University Jinan 250100 P. R. China
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4
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Xu Y, Hao A, Xing P. X⋅⋅⋅X Halogen Bond-Induced Supramolecular Helices. Angew Chem Int Ed Engl 2021; 61:e202113786. [PMID: 34729878 DOI: 10.1002/anie.202113786] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Indexed: 12/28/2022]
Abstract
The halogen bond is the attractive interaction between the electrophilic region of a halogen atom and the nucleophilic region of another molecular entity, emerging as a favorable manner to manipulate supramolecular chirality in self-assemblies. Engineering halogen bonded helical structures remains a challenge due to its sensitivity to solvent polarity and competitive forces like hydrogen bonds. Herein, we report a X⋅⋅⋅X (X=Cl, Br, I) type weak halogen bond that induces the formation and evolution of supramolecular helical structures both in solid and solution state. The π-conjugated phenylalanine derivatives with F, Cl, Br and I substitution self-assembled into 21 helical packing driven by hydrogen bond and halogen bond, respectively. The specific molecular geometries of π-conjugated amino acids gave rise to multiple noncovalent forces to stabilize the X⋅⋅⋅X halogen bond with small bond energies ranging from -0.69 to -1.49 kcal mol-1 . Halogen bond induced an opposite helicity compared to the fluorinated species, accompanied by the inversed circularly polarized luminescence.
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Affiliation(s)
- Yunying Xu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Aiyou Hao
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Pengyao Xing
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
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5
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Liang J, Hao A, Xing P, Zhao Y. Inverse Evolution of Helicity from the Molecular to the Macroscopic Level Based on N-Terminal Aromatic Amino Acids. ACS NANO 2021; 15:5322-5332. [PMID: 33683099 DOI: 10.1021/acsnano.0c10876] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Precise control of the emergence of macroscopic helicity with specific handedness is promising in rationally designing chiral nanomaterials, but it is rather challenging. Herein, we present a protocol to address the transmission of helicity at a molecularly resolved level to a macroscopically resolved level, in which process supramolecular chirality undergoes an inversion. A series of N-terminal aromatic amino acids could self-assemble in water, enabling the occurrence of helicity at the molecularly resolved scale, evidenced by the single crystal structure and chiroptical responses. While it failed to transmit the helicity to the macroscopic scale for individual self-assembly, the coassembly with small organic binder through hydrogen bonding interactions allows for the emergence of helical structures at the nano/micrometer scale. Experimental and theoretical results demonstrate that the introduction of extra hydrogen bonds enables a moderate crystallinity of coassemblies with remaining one-dimensional orientation to enhance the helical growth. The transmission of helicity to higher levels by coassembly is accompanied by the helicity inversion, resulting from the exchange of hydrogen bonds. This study presents a rational protocol to precisely control the emergence of macroscopic helicity from molecularly resolved helicity with finely tailored handedness, providing a deeper understanding of the chirality origin in the assembled systems in order to facilitate the design and construction of functional chiral nanomaterials.
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Affiliation(s)
- Juncong Liang
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, People's Republic of China
| | - Aiyou Hao
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, People's Republic of China
| | - Pengyao Xing
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, People's Republic of China
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Yanli Zhao
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
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Monika, Verma A, Tiwari MK, Show B, Saha S. Modulation of Weak Interactions in Structural Isomers: Positional Isomeric Effects on Crystal Packing and Physical Properties and Solid-State Thin-Film Fabrication. ACS OMEGA 2020; 5:448-459. [PMID: 31956791 PMCID: PMC6964309 DOI: 10.1021/acsomega.9b02962] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 12/16/2019] [Indexed: 09/26/2024]
Abstract
Selective formation of positional isomers and accordingly tuning the physicochemical properties of small conjugated organic molecules through structural isomers is an effective crystal engineering for a fascinating successful delivery of thermally stable and photophysically exciting compounds. By small structural skeleton changes, the single crystal of the naphthalenemaleonitrile isomers is found to exhibit a drastic change in crystal packing array, which in turn is found to tune the thermal and physicochemical properties. The α-isomer (A) forms the "herringbone packing" (HP) due to peri-interaction-sensitive C-H···(Ar)π (Ar = naphthalene ring) interactions, and the β-isomer (B) forms the "bricklayer packing" (BP) due to π(C≡N)···π(Ar) stacking interactions. These two positional isomers have revealed insight of molecular packing-dependent structure-property relationship. In this report, we show that a simple modification of relatively less common weak interactions, such as C-H···π(Ar) ↔ π(C≡N)···π(Ar), through the preparation of isomers, can lead to a drastic change in crystal packing (HP ↔ BP). Also, this report demonstrates that by a small structural diversity, one can obtain significant changes in the physicochemical properties like melting behavior, enthalpy, entropy, and electrical properties in the solid state. Therefore, it transpires from this study that structural isomer provides a useful complement to intermolecular nonbonding interactions as a tool to design new promising materials.
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Affiliation(s)
- Monika
- Department
of Chemistry, Institute of Science, Banaras
Hindu University, Varanasi 221005, India
| | - Abhineet Verma
- Department
of Chemistry, Institute of Science, Banaras
Hindu University, Varanasi 221005, India
| | - Manish Kumar Tiwari
- Department
of Chemistry, Institute of Science, Banaras
Hindu University, Varanasi 221005, India
| | | | - Satyen Saha
- Department
of Chemistry, Institute of Science, Banaras
Hindu University, Varanasi 221005, India
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7
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Abstract
A β-strand is a component of a β-sheet and is an important structural motif in biomolecules. An α-helix has clear helicity, while chirality of a β-strand had been discussed on the basis of molecular twists generated by forming hydrogen bonds in parallel or non-parallel β-sheets. Herein we describe handedness determination of two-fold helicity in a zig-zag β-strand structure. Left- (M) and right-handedness (P) of the two-fold helicity was defined by application of two concepts: tilt-chirality and multi-point approximation. We call the two-fold helicity in a β-strand, whose handedness has been unrecognized and unclarified, as hidden chirality. Such hidden chirality enables us to clarify precise chiral characteristics of biopolymers. It is also noteworthy that characterization of chirality of high dimensional structures like a β-strand and α-helix, referred to as high dimensional chirality (HDC) in the present study, will contribute to elucidation of the possible origins of chirality and homochirality in nature because such HDC originates from not only asymmetric centers but also conformations in a polypeptide chain.
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8
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Miyata M. Supramolecular Chirality Generated in Organic Crystals: Stereochemical Course for Conglomerates. J SYN ORG CHEM JPN 2017. [DOI: 10.5059/yukigoseikyokaishi.75.503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Mikiji Miyata
- The Institute of Scientific and Industrial Research, Osaka University
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9
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Serdechnova M, Salak AN, Barbosa FS, Vieira DE, Tedim J, Zheludkevich ML, Ferreira MG. Interlayer intercalation and arrangement of 2-mercaptobenzothiazolate and 1,2,3-benzotriazolate anions in layered double hydroxides: In situ X-ray diffraction study. J SOLID STATE CHEM 2016. [DOI: 10.1016/j.jssc.2015.10.023] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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10
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Generation of Supramolecular Chirality around Twofold Rotational or Helical Axes in Crystalline Assemblies of Achiral Components. Symmetry (Basel) 2015. [DOI: 10.3390/sym7041914] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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11
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Wang H, Pietropaolo A, Wang W, Chou CY, Hisaki I, Tohnai N, Miyata M, Nakano T. Right-handed 2/1 helical arrangement of benzene molecules in cholic acid crystal established by experimental and theoretical circular dichroism spectroscopy. RSC Adv 2015. [DOI: 10.1039/c5ra20853j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Right handed 2/1 helical arrangement of benzene included in cholic acid (CA) crystals was directly established by experimental and theoretical circular dichroism spectral studies.
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Affiliation(s)
- Heng Wang
- Institute for Catalysis (ICAT) and Graduate School of Chemical Sciences and Engineering
- Hokkaido University
- Sapporo 001-0021
- Japan
| | - Adriana Pietropaolo
- Dipartimento di Scienze della Salute
- Università di Catanzaro
- 88100 Catanzaro
- Italy
| | - Wenbin Wang
- Institute for Catalysis (ICAT) and Graduate School of Chemical Sciences and Engineering
- Hokkaido University
- Sapporo 001-0021
- Japan
| | - Chen-Yi Chou
- Institute for Catalysis (ICAT) and Graduate School of Chemical Sciences and Engineering
- Hokkaido University
- Sapporo 001-0021
- Japan
| | - Ichiro Hisaki
- Department of Material and Life Science
- Graduate School of Engineering
- Osaka University
- Osaka 565-0871
- Japan
| | - Norimitsu Tohnai
- Department of Material and Life Science
- Graduate School of Engineering
- Osaka University
- Osaka 565-0871
- Japan
| | - Mikiji Miyata
- Department of Material and Life Science
- Graduate School of Engineering
- Osaka University
- Osaka 565-0871
- Japan
| | - Tamaki Nakano
- Institute for Catalysis (ICAT) and Graduate School of Chemical Sciences and Engineering
- Hokkaido University
- Sapporo 001-0021
- Japan
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12
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Sasaki T, Ida Y, Hisaki I, Yuge T, Uchida Y, Tohnai N, Miyata M. Characterization of Supramolecular Hidden Chirality of Hydrogen-Bonded Networks by Advanced Graph Set Analysis. Chemistry 2014; 20:2478-87. [PMID: 24677311 DOI: 10.1002/chem.201303770] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Indexed: 11/09/2022]
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13
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Pandeeswar M, Khare H, Ramakumar S, Govindaraju T. Biomimetic molecular organization of naphthalene diimide in the solid state: tunable (chiro-) optical, viscoelastic and nanoscale properties. RSC Adv 2014. [DOI: 10.1039/c3ra47257d] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Biomimetic molecular organization of naphthalene diimide in the solid state: tunable (chiro-) optical, viscoelastic and nanoscale properties.
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Affiliation(s)
- M. Pandeeswar
- Bioorganic Chemistry Laboratory
- New Chemistry Unit
- Jawaharlal Nehru Centre for Advanced Scientific Research
- Bangalore 560064, India
| | | | | | - T. Govindaraju
- Bioorganic Chemistry Laboratory
- New Chemistry Unit
- Jawaharlal Nehru Centre for Advanced Scientific Research
- Bangalore 560064, India
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14
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Sasaki T, Hisaki I, Miyano T, Tohnai N, Morimoto K, Sato H, Tsuzuki S, Miyata M. Linkage control between molecular and supramolecular chirality in 2₁-helical hydrogen-bonded networks using achiral components. Nat Commun 2013; 4:1787. [PMID: 23653199 PMCID: PMC3644081 DOI: 10.1038/ncomms2756] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Accepted: 03/18/2013] [Indexed: 01/07/2023] Open
Abstract
Chiral molecules preferentially form one-handed supramolecular assemblies that reflect the absolute configuration of the molecules. Under specific conditions, however, the opposite-handed supramolecular assemblies are also obtained because of flexibility in the bond length and reversibility of non-covalent interactions. The mechanism of the handedness selectivity or switching phenomenon remains ambiguous, and most phenomena are observed by chance. Here we demonstrate the construction of chiral hydrogen-bonded twofold helical assemblies with controlled handedness in the crystalline state based on crystallographic studies. Detailed investigation of the obtained crystal structures enabled us to clarify the mechanism, and the handedness of the supramolecular chirality was successfully controlled by exploiting achiral factors. This study clearly reveals a connection between molecular chirality and supramolecular chirality in the crystalline state.
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Affiliation(s)
- Toshiyuki Sasaki
- Department of Material and Life Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Ichiro Hisaki
- Department of Material and Life Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Tetsuya Miyano
- Department of Material and Life Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Norimitsu Tohnai
- Department of Material and Life Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Kazuya Morimoto
- Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University, 2-5, Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Hisako Sato
- Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University, 2-5, Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Seiji Tsuzuki
- Research Initiative of Computational Sciences (RICS), Nanosystem Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
| | - Mikiji Miyata
- Department of Material and Life Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan,
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15
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Liu WT, Kin Y, Nakano K, Hisaki I, Tohnai N, Miyata M. Inclusion Crystals of 3α,7α,12α,24-Tetrahydroxycholane with Haloaromatic Compounds: Pitches and Stability of Herringbone Assemblies in Channels. CHEM LETT 2013. [DOI: 10.1246/cl.2013.143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Wen-Tzu Liu
- Department of Material and Life Science, Graduate School of Engineering, Osaka University
| | - Yute Kin
- Department of Material and Life Science, Graduate School of Engineering, Osaka University
| | | | - Ichiro Hisaki
- Department of Material and Life Science, Graduate School of Engineering, Osaka University
| | - Norimitsu Tohnai
- Department of Material and Life Science, Graduate School of Engineering, Osaka University
| | - Mikiji Miyata
- Department of Material and Life Science, Graduate School of Engineering, Osaka University
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16
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Sasaki T, Ida Y, Tanaka A, Hisaki I, Tohnai N, Miyata M. Chiral crystallization by non-parallel face contacts on the basis of three-axially asymmetric twofold helices. CrystEngComm 2013. [DOI: 10.1039/c3ce41504j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Hisaki I, Sasaki T, Tohnai N, Miyata M. Supramolecular-Tilt-Chirality on Twofold Helical Assemblies. Chemistry 2012; 18:10066-73. [DOI: 10.1002/chem.201200688] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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18
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Sasaki T, Hisaki I, Tsuzuki S, Tohnai N, Miyata M. Halogen bond effect on bundling of hydrogen bonded 2-fold helical columns. CrystEngComm 2012. [DOI: 10.1039/c2ce26081f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Sasaki T, Shizuki N, Hiraishi E, Hisaki I, Tohnai N, Miyata M. Construction of multi-component supramolecular architectures of bile acids and cinchona alkaloids through helical-pitch-synchronized crystallization. Org Biomol Chem 2012; 10:5985-92. [DOI: 10.1039/c2ob25072a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Hisaki I, Sasaki T, Tohnai N, Miyata M. Multipoint Approximation Method for Handedness Determination of Two-fold Helical Assemblies and Their Bundles. J SYN ORG CHEM JPN 2012. [DOI: 10.5059/yukigoseikyokaishi.70.908] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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