2016-2020

68. Peripherally Donor-Installed 7,8-Diaza[5]helicenes as a Platform for Helical Luminophores
Y. Takeda, P. Data, B. Esser, Y. Ikari, T. Kaihara, S. Goto, M. Bovenkerk, D.C. Grenz, M. Ferreira, P. Stachelek, T. Yoshida, T. Ikai, N. Tohnai, and S. Minakata
Synthesis, 53, 1584-1596 (2020)
DOI: 10.1055/a-1343-5810

67. Chiral Guest-Induced Catalytic Deracemization of a Spiroborate-Based Double-Stranded Helicate Bearing a Bisporphyrin Unit with Acids
M. Ito, T. Ikai, S. Yamamoto, D. Taura, N. Ousaka, and E. Yashima
Chem. Lett., 49, 1030-1033 (2020)
DOI: 10.1246/cl.200352
Selected as Editor’s Choice and Inside Cover

66. Helical Assemblies of One-Dimensional Supramolecular Polymers Composed of Helical Macromolecules: Generation of Circularly Polarized Light Using an Infinitesimal Chiral Source
T. Ikai, M. Okubo, and Y. Wada
J. Am. Chem. Soc., 142, 3254-3261 (2020)
DOI: 10.1021/jacs.9b13584

65. Catalytic One-Handed Helix-Induction and Memory of Amphiphilic Poly(Biphenylylacetylene)s in Water
T. Ikai, K. Mizumoto, R. Ishidate, W. R. Kitzmann, R. Ikeda, C. Yokota, K. Maeda, and E. Yashima
Giant, 2, 100016 (2020)
DOI: 10.1016/j.giant.2020.100016
Highlighted in Giant, 2, 10015 (2020) by Prof. R.-M. Ho.

64. Helix-Sense-Selective Encapsulation of Helical Poly(lactic acid)s within a Helical Cavity of Syndiotactic Poly(methyl methacrylate) with Helicity Memory
T. Ikai, S. Kawabata, F. Mamiya, D. Taura, N. Ousaka, and E. Yashima
J. Am. Chem. Soc., 142, 21913-21925 (2020)
DOI: 10.1021/jacs.0c11204
Selected as Supplementary Cover

63. Chiral/Achiral Copolymers of Biphenylylacetylenes Bearing Various Substituents: Chiral Amplification through Copolymerization Followed by Enhancement/Inversion and Memory of the Macromolecular Helicity
T. Ikai, R. Ishidate, K. Inoue, J. Kaygisiz, K. Maeda, and E. Yashima
Macromolecules, 53, 973-981 (2020)
DOI: 10.1021/acs.macromol.9b02727

62. Optically Active Triptycenes Containing Hexa-peri-Hexabenzocoronene Units
Y. Wada, K. Shinohara, and T. Ikai
Chem. Commun., 55, 11386-11389 (2019)
DOI: 10.1039/C9CC06025A

61. One-Step Synthesis of One-Dimensional Supramolecular Assemblies Composed of Helical Macromolecular Building Blocks
Y. Wada, K. Shinohara, H. Asakawa, S. Matsui, T. Taima, and T. Ikai
J. Am. Chem. Soc., 141, 13995-14002 (2019)
DOI: 10.1021/jacs.9b07417

60. Helicity Induction and Memory Effect in Poly(biphenylylacetylene)s Bearing Various Functional Groups and Their Use as Switchable Chiral Stationary Phases for HPLC
R. Ishidate, T. Sato, T. Ikai, S. Kanoh, E. Yashima, and K. Maeda
Polym. Chem., 10, 6260-6268 (2019)
DOI: 10.1039/C9PY01425J
Selected as Inside Front Cover

59. Triptycene-Based Ladder Polymers with One-Handed Helical Geometry
T. Ikai, T. Yoshida, K. Shinohara, T. Taniguchi, Y. Wada, and T.M. Swager
J. Am. Chem. Soc., 141, 4696-4703 (2019)
DOI: 10.1021/jacs.8b13865

58. Synthesis of Helical π-Conjugated Polymers Bearing Pyridine N-Oxide Pendants and Asymmetric Allylation of Aldehydes in the Helical Cavity
T. Ikai and T. Yoshida
Org. Biomol. Chem., 17, 8537-8540 (2019)
DOI: 10.1039/C9OB01828J

57. Synthesis of a One-Handed Helical Polythiophene: A New Approach Using an Axially Chiral Bithiophene with a Fixed Syn-Conformation
T. Ikai, K. Takayama, Y. Wada, S. Minami, C. Apiboon, and K. Shinohara
Chem. Sci., 10, 4890-4895 (2019)
DOI: 10.1039/C9SC00342H

56. Helicity Induction and Its Static Memory of Poly(biphenylylacetylene)s Bearing Pyridine N-Oxide Groups and Their Use as Asymmetric Organocatalysts
M. Ando, R. Ishidate, T. Ikai, K. Maeda, and E. Yashima
J. Polym. Sci., Part A: Polym. Chem., 57, 2481-2490 (2019)
DOI: 10.1002/pola.29501

55. Dithiocarbamate-Modified Cellulose Resins: A Novel Adsorbent for Selective Removal of Arsenite from Aqueous Media
K. Nakakubo, H. Hasegawa, M. Ito, K. Yamazaki, M. Miyaguchi, F.B. Biswas, T. Ikai, and K. Maeda
J. Hazard. Mater., 380, 120816 (2019)
DOI: 10.1016/j.jhazmat.2019.120816

54. Direct Detection of Minute- and Crypto-chirality of Tertiary and Quaternary Hydrocarbons and Isotopically Chiral Compounds by a Helical Polyacetylene through Chiral Amplification and Memory
K. Maeda, D. Hirose, N. Okoshi, K. Shimomura, Y. Wada, T. Ikai, S. Kanoh, and E. Yashima
J. Am. Chem. Soc., 140, 3270-3276 (2018)
DOI: 10.1021/jacs.7b10981
Selected as Front Cover and highlighted in JACS Spotlights.

53. Circularly Polarized Luminescent Triptycene-Based Polymers
T. Ikai, T. Yoshida, S. Awata, Y. Wada, K. Maeda, M. Mizuno, and T.M. Swager
ACS Macro Lett., 7, 364-369 (2018)
DOI: 10.1021/acsmacrolett.8b00106

52. Chiral Amplification in π-Conjugated Helical Polymers with Circularly Polarized Luminescence
T. Ikai, S. Shimizu, S. Awata, and K. Shinohara
Macromolecules, 51, 2328－2334 (2018)
DOI: 10.1021/acs.macromol.8b00229

51. Optically Active Distorted Cyclic Triptycenes: Chiral Stationary Phases for HPLC
T. Ikai, N. Nagata, S. Awata, Y. Wada, K. Maeda, M. Mizuno, and T.M. Swager
RSC Adv., 8, 20483-20487 (2018)
DOI: 10.1039/C8RA04434A

50. Helicity Control of π-Conjugated Foldamers Containing D-Glucose-Based Single Enantiomeric Units as a Chiral Source
T. Ikai, S. Minami, S. Awata, S. Shimizu, T. Yoshida, M. Okubo, and K. Shinohara
Polym. Chem., 9, 5504-5510 (2018)
DOI: 10.1039/C8PY01436A

49. Synthesis of a Helical π-Conjugated Polymer with Dynamic Hydrogen-Bonded Network in the Helical Cavity and Its Circularly Polarized Luminescence Property
T. Ikai, S. Awata, and K. Shinohara
Polym. Chem., 9, 1541-1546 (2018)
DOI: 10.1039/C7PY01867C
Selected as Front Cover

48. Static Memory of Enantiomeric Helices Induced in a Poly(biphenylylacetylene) by a Single Enantiomer Assisted by Temperature- and Solvent-Driven Helix Inversion
K. Maeda, K. Shimomura, T. Ikai, S. Kanoh, and E. Yashima
Macromolecules, 50, 7801-7806 (2017)
DOI: 10.1021/acs.macromol.7b01955

47. Chromatographic Enantioseparation by Poly(biphenylylacetylene) Derivatives with Memory of Both Axial Chirality and Macromolecular HelicityR. Ishidate,
T. Ikai, S. Kanoh, E. Yashima, and K. Maeda
Chirality, 29, 120-129 (2017)
DOI: 10.1002/chir.22687
Selected as Front Cover

46. Chiral Triptycene-Pyrene π-Conjugated Chromophores with Circularly Polarized Luminescence
T. Ikai, Y. Wada, S. Awata, C. Yun, K. Maeda, M. Mizuno, and T.M. Swager
Org. Biomol. Chem., 15, 8440-8447 (2017)
DOI: 10.1039/C7OB02046E

45. A Cellulose-Based Chiral Fluorescent Sensor for Aromatic Nitro Compounds with Central, Axial and Planar Chirality
T. Ikai, D. Suzuki, K. Shinohara, K. Maeda, and S. Kanoh
Polym. Chem., 8, 2257-2265 (2017)
DOI: 10.1039/C7PY00285H

44. Helical Folding of π-Conjugated Polymers Bearing Glucose-Linked Biphenyl Units in the Main Chain: Application to Circularly Polarized Luminescence Materials
T. Ikai, S. Shimizu, T. Kudo, K. Maeda, and S. Kanoh
Bull. Chem. Soc. Jpn., 90, 910-918 (2017)
DOI: 10.1246/bcsj.20170122

43. Cellulose Derivatives Bearing Pyrene-Based π-Conjugated Pendants with Circularly Polarized Luminescence in Molecularly Dispersed State
T. Ikai, Y. Kojima, K. Shinohara, K. Maeda, and S. Kanoh
Polymer, 117, 220-224 (2017)
DOI: 10.1016/j.polymer.2017.04.032

42. Chiral Stationary Phases Consisting of π-Conjugated Polymers Bearing Glucose-Linked Biphenyl Units: Reversible Switching of Resolution Abilities Based on a Coil-to-Helix Transition
T. Ikai, S. Awata, T. Kudo, R. Ishidate, K. Maeda, and S. Kanoh
Polym. Chem., 8, 4190-4198 (2017)
DOI: 10.1039/C7PY00804J
Selected as Back Cover

41. A mechanistic Insight into the Organocatalytic Properties of Imidazolium-Based Ionic Liquids and a Positive Co-solvent Effect on Cellulose Modification Reactions in an Ionic Liquid
R. Kakuchi, R. Ito, S. Nomura, H. Abroshan, K. Ninomiya, T. Ikai, K. Maeda, H.J. Kim, and K. Takahashi
RSC Adv., 7, 9423-9430 (2017)
DOI: 10.1039/C6RA28659C

40. Synthesis of Thieno[3,4-b]thiophene-Based Donor Molecules with Phenyl Ester Pendants for Organic Solar Cells: Control of Photovoltaic Properties via Single Substituent Replacement
Y. Wada, Y. Asada, T. Ikai, K. Maeda, T. Kuwabara, K. Takahashi, and S. Kanoh
ChemistrySelect, 1, 703-709 (2016)
DOI: 10.1002/slct.201600205

39. Chiral Recognition Ability of an Optically Active Poly(diphenylacetylene) as a Chiral Stationary Phase for HPLC
K. Maeda, M. Maruta, K. Shimomura, T. Ikai, and S. Kanoh
Chem. Lett., 45, 1063-1065 (2016)
DOI: 10.1246/cl.160542

38. Synthesis of Optically Active Poly(diphenylacetylene)s Using Polymer Reactions and an Evaluation of Their Chiral Recognition Abilities as Chiral Stationary Phases for HPLC
K. Maeda, M. Maruta, Y. Sakai, T. Ikai, and S. Kanoh
Molecules, 21, 1487-1500 (2016)
DOI: 10.3390/molecules21111487

37. Development of Amylose- and β-Cyclodextrin-Based Chiral Fluorescent Sensors Bearing Terthienyl Pendants
T. Ikai, C. Yun, Y. Kojima, D. Suzuki, K. Maeda, and S. Kanoh
Molecules, 21, 1518-1529 (2016)
DOI: 10.3390/molecules21111518

36. Impact of a Minority Enantiomer on the Polymerization of Alanine-Based Isocyanides with an Oligothiophene Pendant
T. Ikai, Y. Wada, Y. Takagi, and K. Shinohara
Polym. Chem., 7, 7057-7067 (2016)
DOI: 10.1039/C6PY01351A
Selected as Front Cover

35. Chiral Fluorescent Sensors Based on Cellulose Derivatives Bearing Terthienyl Pendants
T. Ikai, D. Suzuki, Y. Kojima, C. Yun, K. Maeda, and S. Kanoh
Polym. Chem., 7, 4793-4801 (2016)
DOI: 10.1039/C6PY00967K

34. Synthesis and Chiroptical Properties of a π-Conjugated Polymer Containing Glucose-Linked Biphenyl Units in the Main Chain Capable of Folding into a Helical Conformation
T. Ikai, S. Shimizu, S. Awata, T. Kudo, T. Yamada, K. Maeda, and S. Kanoh
Polym. Chem., 7, 7522-7529 (2016)
DOI: 10.1039/C6PY01759B

33. Achieving High ON/OFF Ratio and Good Stability in Organic Nonvolatile Resistive Memory Devices with Polyisocyanide Bearing Oligothiophene
Y. Sakuragawa, Y. Takagi, T. Ikai, K. Maeda, T.T. Dao, H. Sakai, and H. Murata
Jpn. J. Appl. Phys., 55, 03DC10 (2016)
DOI: 10.7567/JJAP.55.03DC10