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Katoono R, Obara Y, Sakamoto K, Miyashita R. Study of optical rotation based on the molecular structure in fused oligomers of macrocycles. RSC Adv 2024; 14:20735-20742. [PMID: 38952942 PMCID: PMC11215750 DOI: 10.1039/d4ra03709j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Accepted: 06/16/2024] [Indexed: 07/03/2024] Open
Abstract
We designed a unique oligomer form in which several helically twisted macrocycles (M- or P-helicity) are arranged through fusion. We investigated the optical rotation of a series of fused oligomers of macrocycles with a difference in the number and arrangement of elements associated with point-chiral auxiliary. Some oligomers cooperatively attained a situation where an identical sense of twisting was preferred throughout the entire molecule. On the basis of these results, we estimated diastereomeric excess induced in each oligomer. We revealed that the molar optical rotation per element was modulated with a rotational angle between elements: an increase via 0° rotational arrangement, a decrease via 180° rotational arrangement, or a decrease via cyclic arrangement. Alternatively, for other oligomers in which several diastereomeric conformers coexist, we uniquely attempted to consider the optical rotation based on the molecular structure through the assessment of a change ratio of the absorption dissymmetry factor before and after complexation with an achiral guest. We found that molar optical rotation could be different based on the arrangement, although actual measured values were similar.
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Affiliation(s)
- Ryo Katoono
- Department of Chemistry, Faculty of Science, Hokkaido University Sapporo 060-0810 Japan +81 11 706-4616
| | - Yudai Obara
- Department of Chemistry, Faculty of Science, Hokkaido University Sapporo 060-0810 Japan +81 11 706-4616
| | - Kazuki Sakamoto
- Department of Chemistry, Faculty of Science, Hokkaido University Sapporo 060-0810 Japan +81 11 706-4616
| | - Rei Miyashita
- Department of Chemistry, Faculty of Science, Hokkaido University Sapporo 060-0810 Japan +81 11 706-4616
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2
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Devkota GP, Carson WP, Hartley CS. Conformational Control of ortho-Phenylenes by Terminal Amides. J Org Chem 2023; 88:1331-1338. [PMID: 36650119 DOI: 10.1021/acs.joc.2c01858] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Control over the folding of oligomers, be it broad induction of a preferred helical handedness or subtle changes in the orientations of individual functional groups, is important for applications ranging from molecular recognition to long-range conformational communication. Here, we report a series of ortho-phenylene hexamers functionalized with achiral and chiral amides at their termini. NMR spectroscopy, taking advantage of 19F labeling, allows multiple conformers to be detected for each compound. In combination with CD spectroscopy and DFT calculations, specific geometries corresponding to each conformer have been identified and quantified. General conclusions about the effect of sterics and the amide linker on conformational behavior have been drawn, revealing some similarities to and key differences from previously reported imines. A model for twist sense control has been developed that is supported by computational models.
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Affiliation(s)
- Govinda Prasad Devkota
- Department of Chemistry & Biochemistry, Miami University, Oxford, Ohio 45056, United States
| | - William P Carson
- Department of Chemistry & Biochemistry, Miami University, Oxford, Ohio 45056, United States
| | - C Scott Hartley
- Department of Chemistry & Biochemistry, Miami University, Oxford, Ohio 45056, United States
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3
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Resa S, Reiné P, Álvarez de Cienfuegos L, Guisán-Ceinos S, Ribagorda M, Longhi G, Mazzeo G, Abbate S, Mota AJ, Miguel D, Cuerva JM. Optically active Ag(i): o-OPE helicates using a single homochiral sulfoxide as chiral inducer. Org Biomol Chem 2019; 17:8425-8434. [PMID: 31469142 DOI: 10.1039/c9ob01573f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work we describe the ability of a simple enantiopure sulfoxide group to promote folding of oligo ortho-phenylene ethynylenes (o-OPEs) with one helical sense. A family of foldamers with up to seven triple bonds was synthesized and fully characterized. Moreover, changes in structure and chiroptical properties caused by Ag(i) coordination have been studied by NMR, UV, VCD and ECD measurements. Quantum mechanical DFT calculations support experimental results.
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Affiliation(s)
- Sandra Resa
- Department of Organic Chemistry, Unidad de Excelencia de Química (UEQ), University of Granada, C.U. Fuentenueva, Granada, Spain.
| | - Pablo Reiné
- Department of Organic Chemistry, Unidad de Excelencia de Química (UEQ), University of Granada, C.U. Fuentenueva, Granada, Spain.
| | - Luis Álvarez de Cienfuegos
- Department of Organic Chemistry, Unidad de Excelencia de Química (UEQ), University of Granada, C.U. Fuentenueva, Granada, Spain.
| | - Santiago Guisán-Ceinos
- Department of Organic Chemistry, C.U. Cantoblanco, Universidad Autónoma de Madrid, Spain
| | - María Ribagorda
- Department of Organic Chemistry, C.U. Cantoblanco, Universidad Autónoma de Madrid, Spain
| | - Giovanna Longhi
- Dipartimento di Medicina Molecolare e Traslazionale, Universitá di Brescia, Viale Europa 11, Brescia, Italy
| | - Giuseppe Mazzeo
- Dipartimento di Medicina Molecolare e Traslazionale, Universitá di Brescia, Viale Europa 11, Brescia, Italy
| | - Sergio Abbate
- Dipartimento di Medicina Molecolare e Traslazionale, Universitá di Brescia, Viale Europa 11, Brescia, Italy
| | - Antonio J Mota
- Department of Inorganic Chemistry, UEQ, University of Granada, C.U. Fuentenueva, Granada, Spain
| | - Delia Miguel
- Department of Physical Chemistry, UEQ, University of Granada, C.U. Cartuja, Granada, Spain.
| | - Juan M Cuerva
- Department of Organic Chemistry, Unidad de Excelencia de Química (UEQ), University of Granada, C.U. Fuentenueva, Granada, Spain.
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4
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Vemuri GN, Pandian RR, Spinello BJ, Stopler EB, Kinney ZJ, Hartley CS. Twist sense control in terminally functionalized ortho-phenylenes. Chem Sci 2018; 9:8260-8270. [PMID: 30542575 PMCID: PMC6240895 DOI: 10.1039/c8sc02821d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 09/05/2018] [Indexed: 01/19/2023] Open
Abstract
Chiral groups induce opposite twist senses of o-phenylene helices depending on their positions in dynamic mixtures.
Many abiotic foldamers are based on achiral repeat units but adopt chiral geometries, especially helices. In these systems, there is no inherent preference for one handedness of the fold; however, it is well-established that the point chirality of substituents can be communicated to the helix. This capability represents a basic level of control over folding that is necessary for applications in molecular recognition and in the assembly of higher-order structures. The ortho-phenylenes are a structurally simple class of aromatic foldamers that fold into helices driven by arene–arene stacking interactions. Although their folding is now reasonably well-understood, access to o-phenylenes enriched in one twist sense has been limited to resolution, yielding conformationally dynamic samples that racemize over the course of minutes to hours. Here, we report a detailed structure–property study of chiral induction from o-phenylene termini using a combination of NMR spectroscopy, CD spectroscopy, and computational chemistry. We uncover mechanistic details of chiral induction and show that the same substituents can give effective twist sense control in opposite directions in mixtures of interconverting conformers; that is, they are “ambidextrous”. This behavior should be general and can be rationalized using a simple model based on sterics, noting that arene–arene stacking is, to a first approximation, unaffected by flipping either partner. We demonstrate control over this mechanism by showing that chiral groups can be chosen such that they both favor one orientation and provide effective chiral induction.
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Affiliation(s)
- Gopi Nath Vemuri
- Department of Chemistry & Biochemistry , Miami University , Oxford , OH 45056 , USA .
| | - Rathiesh R Pandian
- Department of Chemistry & Biochemistry , Miami University , Oxford , OH 45056 , USA .
| | - Brian J Spinello
- Department of Chemistry & Biochemistry , Miami University , Oxford , OH 45056 , USA .
| | - Erika B Stopler
- Department of Chemistry & Biochemistry , Miami University , Oxford , OH 45056 , USA .
| | - Zacharias J Kinney
- Department of Chemistry & Biochemistry , Miami University , Oxford , OH 45056 , USA .
| | - C Scott Hartley
- Department of Chemistry & Biochemistry , Miami University , Oxford , OH 45056 , USA .
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5
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Lehnherr D, Chen C, Pedramrazi Z, DeBlase CR, Alzola JM, Keresztes I, Lobkovsky EB, Crommie MF, Dichtel WR. Sequence-defined oligo( ortho-arylene) foldamers derived from the benzannulation of ortho(arylene ethynylene)s. Chem Sci 2016; 7:6357-6364. [PMID: 28567248 PMCID: PMC5450445 DOI: 10.1039/c6sc02520j] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 07/06/2016] [Indexed: 01/10/2023] Open
Abstract
A Cu-catalyzed benzannulation reaction transforms ortho(arylene ethynylene) oligomers into ortho-arylenes.
A Cu-catalyzed benzannulation reaction transforms ortho(arylene ethynylene) oligomers into ortho-arylenes. This approach circumvents iterative Suzuki cross-coupling reactions previously used to assemble hindered ortho-arylene backbones. These derivatives form helical folded structures in the solid-state and in solution, as demonstrated by X-ray crystallography and solution-state NMR analysis. DFT calculations of misfolded conformations are correlated with variable-temperature 1H and EXSY NMR to reveal that folding is cooperative and more favorable in halide-substituted naphthalenes. Helical ortho-arylene foldamers with specific aromatic sequences organize functional π-electron systems into arrangements ideal for ambipolar charge transport and show preliminary promise for the surface-mediated synthesis of structurally defined graphene nanoribbons.
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Affiliation(s)
- Dan Lehnherr
- Department of Chemistry and Chemical Biology , Baker Laboratory , Cornell University , Ithaca , New York 14853-1301 , USA .
| | - Chen Chen
- Department of Physics , University of California at Berkeley , Berkeley , California 94720 , USA .
| | - Zahra Pedramrazi
- Department of Physics , University of California at Berkeley , Berkeley , California 94720 , USA .
| | - Catherine R DeBlase
- Department of Chemistry and Chemical Biology , Baker Laboratory , Cornell University , Ithaca , New York 14853-1301 , USA .
| | - Joaquin M Alzola
- Department of Chemistry and Chemical Biology , Baker Laboratory , Cornell University , Ithaca , New York 14853-1301 , USA .
| | - Ivan Keresztes
- Nuclear Magnetic Resonance Laboratory , Cornell University , Ithaca , New York 14853-1301 , USA
| | - Emil B Lobkovsky
- X-ray Crystallography Laboratory , Cornell University , Ithaca , New York 14853-1301 , USA
| | - Michael F Crommie
- Department of Physics , University of California at Berkeley , Berkeley , California 94720 , USA .
| | - William R Dichtel
- Department of Chemistry and Chemical Biology , Baker Laboratory , Cornell University , Ithaca , New York 14853-1301 , USA . .,Department of Chemistry , Northwestern University , Evanston , Illinois 60208 , USA
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6
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Sale AC, Murray AH, Prenzel D, Hampel F, De Luca L, Tykwinski RR. Diels-Alder Cycloaddition of Tetraphenylcyclopentadienone and 1,3,5-Hexatriynes. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600116] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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7
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Katoono R, Tanaka Y, Fujiwara K, Suzuki T. A Foldable Cyclic Oligomer: Chiroptical Modulation through Molecular Folding upon Complexation and a Change in Temperature. J Org Chem 2014; 79:10218-25. [PMID: 25265438 DOI: 10.1021/jo501883m] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Ryo Katoono
- Department of Chemistry,
Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Yuki Tanaka
- Department of Chemistry,
Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Kenshu Fujiwara
- Department of Chemistry,
Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Takanori Suzuki
- Department of Chemistry,
Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
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8
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Martín-Lasanta A, Álvarez de Cienfuegos L, Johnson A, Miguel D, Mota AJ, Orte A, Ruedas-Rama MJ, Ribagorda M, Cárdenas DJ, Carmen Carreño M, Echavarren AM, Cuerva JM. Novel ortho-OPE metallofoldamers: binding-induced folding promoted by nucleating Ag(i)–alkyne interactions. Chem Sci 2014. [DOI: 10.1039/c4sc01988a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Ag(i)–alkyne interactions induce the folding of o-OPE foldamers, yielding a new class of metallofoldamers.
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Affiliation(s)
- Ana Martín-Lasanta
- Department of Organic Chemistry
- Faculty of Science
- University of Granada
- Granada, Spain
| | | | - Alice Johnson
- Institute of Chemical Research of Catalonia (ICIQ)
- Tarragona, Spain
| | - Delia Miguel
- Department of Organic Chemistry
- Faculty of Science
- University of Granada
- Granada, Spain
| | - Antonio J. Mota
- Inorganic Chemistry
- Faculty of Science
- University of Granada
- Granada, Spain
| | - Angel Orte
- Department of Physical Chemistry
- Faculty of Pharmacy
- University of Granada
- Granada, Spain
| | | | - Maria Ribagorda
- Department of Organic Chemistry
- Universidad Autónoma de Madrid
- Madrid, Spain
| | - Diego J. Cárdenas
- Department of Organic Chemistry
- Universidad Autónoma de Madrid
- Madrid, Spain
| | - M. Carmen Carreño
- Department of Organic Chemistry
- Universidad Autónoma de Madrid
- Madrid, Spain
| | | | - Juan M. Cuerva
- Department of Organic Chemistry
- Faculty of Science
- University of Granada
- Granada, Spain
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9
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Sogawa H, Miyagi Y, Shiotsuki M, Sanda F. Synthesis of Novel Optically Active Poly(phenyleneethynylene–aryleneethynylene)s Bearing Hydroxy Groups. Examination of the Chiroptical Properties and Conjugation Length. Macromolecules 2013. [DOI: 10.1021/ma401730e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hiromitsu Sogawa
- Department
of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura Campus, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yu Miyagi
- Department
of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura Campus, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Masashi Shiotsuki
- Molecular
Engineering Institute, Kinki University, Kayanomori, Iizuka, Fukuoka 820-8555, Japan
| | - Fumio Sanda
- Department
of Chemistry and Materials Engineering, Faculty of Chemistry, Materials
and Bioengineering, Kansai University, 3-3-35 Yamate-cho, Suita, Osaka 564-8680, Japan
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10
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Sogawa H, Shiotsuki M, Hirao T, Haino T, Sanda F. Synthesis of Optically Active Poly(m-phenyleneethynylene–aryleneethynylene)s Bearing Hydroxy Groups and Examination of the Higher Order Structures. Macromolecules 2013. [DOI: 10.1021/ma4017295] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hiromitsu Sogawa
- Department of Polymer Chemistry, Graduate
School of Engineering, Kyoto University, Katsura
Campus, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Masashi Shiotsuki
- Molecular
Engineering Institute, Kinki University, Kayanomori, Iizuka, Fukuoka 820-8555, Japan
| | - Takehiro Hirao
- Graduate
School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - Takeharu Haino
- Graduate
School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - Fumio Sanda
- Department
of Chemistry and Materials Engineering, Faculty of Chemistry, Materials
and Bioengineering, Kansai University, 3-3-35 Yamate-cho, Suita, Osaka 564-8680, Japan
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11
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Sogawa H, Shiotsuki M, Sanda F. Synthesis and Photoresponse of Helically Folded Poly(phenyleneethynylene)s Bearing Azobenzene Moieties in the Main Chains. Macromolecules 2013. [DOI: 10.1021/ma4002947] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Hiromitsu Sogawa
- Department
of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura Campus, Nishikyo-ku, Kyoto
615-8510, Japan
| | - Masashi Shiotsuki
- Department
of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura Campus, Nishikyo-ku, Kyoto
615-8510, Japan
| | - Fumio Sanda
- Department
of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura Campus, Nishikyo-ku, Kyoto
615-8510, Japan
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12
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Fuentes N, Martin-Lasanta A, Alvarez de Cienfuegos L, Robles R, Choquesillo-Lazarte D, García-Ruiz JM, Martínez-Fernández L, Corral I, Ribagorda M, Mota AJ, Cárdenas DJ, Carreño MC, Cuerva JM. Versatile Bottom-up Approach to Stapled π-Conjugated Helical Scaffolds: Synthesis and Chiroptical Properties of Cyclico-Phenylene Ethynylene Oligomers. Angew Chem Int Ed Engl 2012; 51:13036-40. [DOI: 10.1002/anie.201206259] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2012] [Revised: 09/13/2012] [Indexed: 11/06/2022]
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13
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Fuentes N, Martin-Lasanta A, Alvarez de Cienfuegos L, Robles R, Choquesillo-Lazarte D, García-Ruiz JM, Martínez-Fernández L, Corral I, Ribagorda M, Mota AJ, Cárdenas DJ, Carreño MC, Cuerva JM. Versatile Bottom-up Approach to Stapled π-Conjugated Helical Scaffolds: Synthesis and Chiroptical Properties of Cyclico-Phenylene Ethynylene Oligomers. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201206259] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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15
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Saito N, Terakawa R, Shigeno M, Amemiya R, Yamaguchi M. Side Chain Effect on the Double Helix Formation of Ethynylhelicene Oligomers. J Org Chem 2011; 76:4841-58. [DOI: 10.1021/jo200658q] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
| | | | | | | | - Masahiko Yamaguchi
- WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
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16
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Hartley CS, He J. Conformational Analysis of o-Phenylenes: Helical Oligomers with Frayed Ends. J Org Chem 2010; 75:8627-36. [DOI: 10.1021/jo1021025] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- C. Scott Hartley
- Department of Chemistry and Biochemistry, Miami University, Oxford, Ohio 45056, United States
| | - Jian He
- Department of Chemistry and Biochemistry, Miami University, Oxford, Ohio 45056, United States
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17
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Affiliation(s)
- Shinji Toyota
- Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridaicho, Kita-ku, Okayama 700-0005, Japan
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