日本化学会

Intermediate Color Emission via Nanographenes with Organic Fluorophores

Saki Arimura, Ikuya Matsumoto, Ryo Sekiya, Takeharu Haino

Angewandte Chemie International Edition   63 ( 14 )   2024.1

Selective Encapsulation of Carboxylic Acid Dimeric Pairs within a Size-regulable Resorcinarene-based Hemicarcerand

Kentaro Harada, Yudai Ono, Ryo Sekiya, Takeharu Haino

Chemical Communications   60 ( 52 )   2024

Molecular Recognition Process in Resorcinarene‐based Coordination Capsules

Kentaro Harada, Ryo Sekiya, Takeharu Haino

Chemistry – A European Journal   29 ( 68 )   2023.9

Induction of Chirality on Nanographenes

Saki Arimura, Ikuya Matsumoto, Shohei Nishitani, Ryo Sekiya, Takeharu Haino

Chemistry – An Asian Journal   18 ( 11 )   2023.4

Substituent‐Induced Supramolecular Aggregates of Edge Functionalized Nanographenes

Haruka Moriguchi, Ryo Sekiya, Takeharu Haino

Small   19 ( 31 )   2207475 - 2207475   2023.3

Effects of Edge Functionalization of Nanographenes with Small Aromatic Systems

Shusaku Takahashi, Ryo Sekiya, Takeharu Haino

ChemPhysChem   24 ( 12 )   2023.3

Computational Studies on the Structures of Nanographenes with Various Edge Functionalities

Shusaku Takahashi, Ryo Sekiya, Takeharu Haino

ChemPhysChem   24 ( 5 )   2022.11

Integration of Nanographenes and Organic Chemistry - Toward Nanographene-based Two-Dimensional Materials

Sekiya, R; Haino, T

CHEMPHYSCHEM   23 ( 21 )   2022.11

Metal Nanoparticles on Lipophilic Nanographenes

Shusaku Takahashi, Ryo Sekiya, Takeharu Haino

Angewandte Chemie International Edition   61 ( 42 )   2022.8

Chirality Induction on a Coordination Capsule for Circularly Polarized Luminescence

Kentaro Harada, Ryo Sekiya, Takeharu Haino

Angewandte Chemie International Edition   61 ( 39 )   2022.7

Chirality Induction in a Hydrophilic Metallohelicate

Masayuki Morie, Ryo Sekiya, Takeharu Haino

Chemistry – An Asian Journal   17 ( 12 )   2022.4

Electrochromism of Nanographenes in the Near‐Infrared Region

Ikuya Matsumoto, Ryo Sekiya, Hiroji Fukui, Ren-De Sun, Takeharu Haino

Angewandte Chemie International Edition   61 ( 17 )   2022.2

Nanographene – A Scaffold of Two‐Dimensional Materials

Ryo Sekiya, Takeharu Haino

The Chemical Record   22 ( 3 )   2021.12

Resorcinarene-based Supramolecular Capsules – Supramolecular Functions and Applications

Ryo Sekiya, Kentaro Harada, Natsumi Nitta, Takeharu Haino

Synlett   33 ( 06 )   518 - 530   2021.10

Synthesis and Conformational Characteristics of Calix[4]arene Oligomers

Masauki Morie, Ryo Sekiya, Takeharu Haino

Bulletin of the Chemical Society of Japan   94 ( 11 )   2792 - 2799   2021.10

Chemical Modification of Nanographenes and Their Functions

Ryo Sekiya, Takeharu Haino

Journal of Synthetic Organic Chemistry, Japan   79 ( 8 )   743 - 754   2021.8

Self‐Assembly of Nanographenes

Ikuya Matsumoto, Ryo Sekiya, Takeharu Haino

Angewandte Chemie International Edition   60 ( 23 )   12706 - 12711   2021.3

Folding and Unfolding of Acetoxy Group-Terminated Alkyl Chains Inside a Size-Regulable Hemicarcerand

Kentaro Harada, Ryo Sekiya, Takeharu Haino

The Journal of Organic Chemistry   86 ( 6 )   4440 - 4447   2021.2

Nanographenes from Distinct Carbon Sources

Ikuya Matsumoto, Ryo Sekiya, Takeharu Haino

Bulletin of the Chemical Society of Japan   94 ( 4 )   1394 - 1399   2021.1

Blueish-white-light-emitting Nanographenes Developed by Pd-Catalyzed Suzuki-Miyaura Cross Coupling Reactions

Shohei Nishitani, Ryo Sekiya, Ikuya Matsumoto, Takeharu Haino

Chemistry Letters   50 ( 4 )   664 - 667   2021.1

Translational isomers of N-sulfonylated [3]catenane: synthesis and isomerization

Hajime Iwamoto, Yuki Ishizu, Eietsu Hasegawa, Ryo Sekiya, Takeharu Haino

Chemical Communications   57 ( 15 )   1915 - 1918   2021

Programmed Dynamic Covalent Chemistry System of Addition-Condensation Reaction of Phenols and Aldehydes

Hiroto Kudo, Daisuke Shimoyama, Ryo Sekiya, Takeharu Haino

Chemistry Letters   50 ( 4 )   825 - 831   2020.12

Calix[4]arene‐Based Triple‐Stranded Metallohelicate in Water

Masayuki Morie, Ryo Sekiya, Takeharu Haino

Chemistry – An Asian Journal   16 ( 1 )   49 - 55   2020.11

Edge Functionalized Nanographenes

Ryo Sekiya

Chemistry – A European Journal   27 ( 1 )   187 - 199   2020.8

Chemically Functionalized Two‐Dimensional Carbon Materials

Ryo Sekiya, Takeharu Haino

Chemistry – An Asian Journal   15 ( 15 )   2316 - 2328   2020.7

A Regulable Internal Cavity inside a Resorcinarene‐Based Hemicarcerand

Kentaro Harada, Ryo Sekiya, Takeharu Haino

Chemistry – A European Journal   26 ( 26 )   5810 - 5817   2020.5

Feet-to-Feet Connected Trisresorcinarenes

Daisuke Shimoyama, Ryo Sekiya, Hiroto Kudo, Takeharu Haino

Organic Letters   22 ( 2 )   352 - 356   2020.1

Upper-Rim Functionalization and Supramolecular Polymerization of a Feet-to-Feet-Connected Biscavitand

Ryo Sekiya

Chemical Communications   56 ( 26 )   3733 - 3736   2020

One-dimensional arrangement of NORIA in the solid-state

Ryo Sekiya

CrystEngComm   22 ( 28 )   4740 - 4747   2020

Absorption of Chemicals in Amorphous Trisresorcinarene

Ryo Sekiya

Chemical Communications   56 ( 83 )   12582 - 12585   2020

Chirality-Embedded Nanographenes

Ryo Sekiya

Angewandte Chemie International Edition   59 ( 2 )   669 - 673   2019.10

Intrinsic Emission from Nanographenes

Kairi Yamato, Ryo Sekiya, Shohei Nishitani, Takeharu Haino

Chemistry – An Asian Journal   14 ( 18 )   3213 - 3220   2019.9

Near-Infrared-Emitting Nitrogen-Doped Nanographenes

Ryo Sekiya

Angewandte Chemie International Edition   58 ( 27 )   9022 - 9026   2019.7

Separation of Spectroscopically Uniform Nanographenes

Kairi Yamato, Ryo Sekiya, Manabu Abe, Takeharu Haino

Chemistry – An Asian Journal   14 ( 10 )   1786 - 1791   2019.5

Organogelators of 5,17-Difunctionalized Calix[4]arenes

Lai Nang Duy, Ryo Sekiya, Masatoshi Tosaka, Shigeru Yamago, Takuya Matsumoto, Takashi Nishino, Takayuki Ichikawa, Takeharu Haino

Chemistry Letters   48 ( 1 )   43 - 46   2019.1

A protocol for size separation of nanographenes

Ryo Sekiya

RSC Advances   9 ( 58 )   33843 - 33846   2019

Tunable enforced cavities inside self-assembled capsules

Ryo Sekiya

Organic Chemistry Frontiers   6 ( 10 )   1561 - 1566   2019

Substituent-controlled racemization of dissymmetric coordination capsules

Kentaro Harada, Ryo Sekiya, Takeshi Maehara, Takeharu Haino

Organic & Biomolecular Chemistry   17 ( 19 )   4729 - 4735   2019

Correction: Substituent-controlled racemization of dissymmetric coordination capsules (Organic and Biomolecular Chemistry (2019) DOI: 10.1039/c9ob00388f)

Kentaro Harada, Ryo Sekiya, Takeshi Maehara, Takeharu Haino

Organic and Biomolecular Chemistry   17 ( 19 )   4917 - 4918   2019

Facile Synthesis of an Eight-Armed Star-Shaped Polymer via Coordination-Driven Self-Assembly of a Four-Armed Cavitand

Nitta, N; Takatsuka, M; Kihara, SI; Sekiya, R; Haino, T

ACS MACRO LETTERS   7 ( 11 )   1308 - 1311   2018.11

Pseudorotaxanes in the gas phase: structure and energetics of protonated dibenzylamine-crown ether complexes

Kida, M; Shimoyama, D; Ikeda, T; Sekiya, R; Haino, T; Ebata, T; Jouvet, C; Inokuchi, Y

PHYSICAL CHEMISTRY CHEMICAL PHYSICS   20 ( 27 )   18678 - 18687   2018.7

Majority-Rules Effect and Allostery in Molecular Recognition of Calix[4]arene-Based Triple-Stranded Metallohelicates

Yamasaki, Y; Shio, H; Amimoto, T; Sekiya, R; Haino, T

CHEMISTRY-A EUROPEAN JOURNAL   24 ( 34 )   8558 - 8568   2018.6

A Supramolecular Polymer Network of Graphene Quantum Dots

Uemura, Y; Yamato, K; Sekiya, R; Haino, T

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   57 ( 18 )   4960 - 4964   2018.4

Synthesis and Dimerization Studies of a Lipophilic Photoresponsive Aryl-Extended Tetraurea-Calix[4]pyrrole

Sekiya, R; Díaz-Moscoso, A; Ballester, P

CHEMISTRY-A EUROPEAN JOURNAL   24 ( 9 )   2182 - 2191   2018.2

Synthesis and Structure of Feet-to-Feet Connected Bisresorcinarenes

Shimoyama, D; Ikeda, T; Sekiya, R; Haino, T

JOURNAL OF ORGANIC CHEMISTRY   82 ( 24 )   13220 - 13230   2017.12

Hexameric assembly of 5,17-di-substituted calix[4] arene in the solid state

Yamasaki, Y; Sekiya, R; Haino, T

CRYSTENGCOMM   19 ( 45 )   6744 - 6751   2017.12

Site-selective anion recognition of an interlocked dimer

Sekiya, R; Fukuda, M; Kuroda, R

ORGANIC & BIOMOLECULAR CHEMISTRY   15 ( 20 )   4328 - 4335   2017.5

Vanadium(V) complexes of some bidentate hydrazone ligands and their bromoperoxidase activity

Adak, P; Ghosh, B; Pakhira, B; Sekiya, R; Kuroda, R; Chattopadhyay, SK

POLYHEDRON   127   135 - 143   2017.5

Photoluminescence responses of graphene quantum dots toward organic bases and an acid

Suzuki, K; Yamato, K; Sekiya, R; Haino, T

PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES   16 ( 5 )   623 - 626   2017.5

Supramolecular Graft Copolymerization of a Polyester by Guest-Selective Encapsulation of a Self-Assembled Capsule

Tsunoda, Y; Takatsuka, M; Sekiya, R; Haino, T

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   56 ( 10 )   2613 - 2618   2017.3

Cooperative Self-Assembly of Carbazole Derivatives Driven by Multiple Dipole-Dipole Interactions

Ikeda, T; Iijima, T; Sekiya, R; Takahashi, O; Haino, T

JOURNAL OF ORGANIC CHEMISTRY   81 ( 15 )   6832 - 6837   2016.8

Allostery in Guest Binding of Rim-to-Rim-Connected Homoditopic Biscavitands

Shimoyama, D; Yamada, H; Ikeda, T; Sekiya, R; Haino, T

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY   2016 ( 20 )   3300 - 3303   2016.7

Chemical Functionalisation and Photoluminescence of Graphene Quantum Dots

Sekiya, R; Uemura, Y; Naito, H; Naka, K; Haino, T

CHEMISTRY-A EUROPEAN JOURNAL   22 ( 24 )   8198 - 8206   2016.6

Hydrogen-bonded hexameric cluster of benzyl alcohol in the solid state polymeric organization of <i>p</i>-<i>tert</i>-Butylcalix[5]arene

Kajiki, Y; Sekiya, R; Haino, T

SUPRAMOLECULAR CHEMISTRY   28 ( 5-6 )   444 - 449   2016.6

Frozen Dissymmetric Cavities in Resorcinarene-Based Coordination Capsules

Imamura, T; Maehara, T; Sekiya, R; Haino, T

CHEMISTRY-A EUROPEAN JOURNAL   22 ( 10 )   3250 - 3254   2016.3

Induced-Fit Molecular Recognition of Alkyl Chains in <i>p</i>-<i>tert</i>-Butylcalix[5]arene in the Solid State

Kajiki, Y; Sekiya, R; Yamasaki, Y; Uemura, Y; Haino, T

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   89 ( 2 )   220 - 225   2016.2

Molecular recognition of upper rim functionalized cavitand and its unique dimeric capsule in the solid state

Kobayashi, M; Takatsuka, M; Sekiya, R; Haino, T

ORGANIC & BIOMOLECULAR CHEMISTRY   13 ( 6 )   1647 - 1653   2015

UV photodissociation spectroscopy of cryogenically cooled gas phase host-guest complex ions of crown ethers

Inokuchi, Y; Haino, T; Sekiya, R; Morishima, F; Dedonder, C; Féraud, G; Jouvet, C; Ebata, T

PHYSICAL CHEMISTRY CHEMICAL PHYSICS   17 ( 39 )   25925 - 25934   2015

Synthesis, Characterization, X-ray Crystal Structure, DFT Calculations, and Catalytic Properties of a Dioxidovanadium(V) Complex Derived from Oxamohydrazide and Pyridoxal: A Model Complex of Vanadate-Dependent Bromoperoxidase

Das, C; Adak, P; Mondal, S; Sekiya, R; Kuroda, R; Gorelsky, SI; Chattopadhyay, SK

INORGANIC CHEMISTRY   53 ( 21 )   11426 - 11437   2014.11

High Diastereoselection of a Dissymmetric Capsule by Chiral Guest Complexation

Tsunoda, Y; Fukuta, K; Imamura, T; Sekiya, R; Furuyama, T; Kobayashi, N; Haino, T

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   53 ( 28 )   7243 - 7247   2014.7

White-Light-Emitting Edge-Functionalized Graphene Quantum Dots

Sekiya, R; Uemura, Y; Murakami, H; Haino, T

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   53 ( 22 )   5619 - 5623   2014.5

Heteroleptic Ru(II) complexes containing aroyl hydrazone and 2,2'-bipyridyl: Synthesis, X-ray crystal structures, electrochemical and DFT studies

Ghosh, B; Naskar, S; Naskar, S; Espinosa, A; Hau, SCK; Mak, TCW; Sekiya, R; Kuroda, R; Chattopadhyay, SK

POLYHEDRON   72   115 - 121   2014.4

Development of Ultraviolet-Ultraviolet Hole-Burning Spectroscopy for Cold Gas-Phase Ions

Féraud, G; Dedonder, C; Jouvet, C; Inokuchi, Y; Haino, T; Sekiya, R; Ebata, T

JOURNAL OF PHYSICAL CHEMISTRY LETTERS   5 ( 7 )   1236 - 1240   2014.4

Guest induced head-to-tail columnar assembly of 5,17-difunctionalized calix[4] arene

Sekiya, R; Yamasaki, Y; Tada, W; Shio, H; Haino, T

CRYSTENGCOMM   16 ( 27 )   6023 - 6032   2014

Ion-based assemblies of planar anion complexes and cationic Pt<SUP>II</SUP> complexes

Sekiya, R; Tsutsui, Y; Choi, W; Sakurai, T; Seki, S; Bando, Y; Maeda, H

CHEMICAL COMMUNICATIONS   50 ( 73 )   10615 - 10618   2014

Head-to-tail polymeric columnar structure of calix[4] arene possessing catechol arms in the solid state

Sekiya, R; Yamasaki, Y; Katayama, S; Shio, H; Haino, T

CRYSTENGCOMM   15 ( 42 )   8404 - 8407   2013

Anion-Directed Formation and Degradation of an Interlocked Metallohelicate

Sekiya, R; Fukuda, M; Kuroda, R

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   134 ( 26 )   10987 - 10997   2012.7

Adsorption and separation of poly-aromatic hydrocarbons by a hydrogen-bonded coordination polymer

Sekiya, R; Nishikiori, S

CHEMICAL COMMUNICATIONS   48 ( 41 )   5022 - 5024   2012

Structural Extension from an Isonicotinic Acid Dimer to 4-(4-Pyridyl)benzoic Acid (pybenH) Dimer: X-ray Crystal Structure Analysis and Inclusion Properties of a Hydrogen-Bonded Coordination Polymer [Ni(SCN)₂(pybenH)₂]_∞

Sekiya, R; Nishildori, S

CRYSTAL GROWTH & DESIGN   11 ( 12 )   5574 - 5591   2011.12

Changing solid-state reaction stereochemistry: Heavy-atom - co-crystal method

Kuroda, R; Sekiya, R

ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES   67   C362 - C362   2011

Synthesis, X-ray crystal structures and inclusion properties of a hydrogen-bonded coordination polymer [Ni(SCN)₂(pppeH)₂]•(guest)<i>_x</i>

Sekiya, R; Nishikiori, S

CRYSTENGCOMM   13 ( 21 )   6405 - 6414   2011

Pd<SUP>2+</SUP>•••O₃SR<SUP>-</SUP> interaction encourages anion encapsulation of a quadruply-stranded Pd complex to achieve chirality or high solubility

Sekiya, R; Kuroda, R

CHEMICAL COMMUNICATIONS   47 ( 45 )   12346 - 12348   2011

Controlling stereoselectivity of solid-state photoreactions by co-crystal formation

Sekiya, R; Kuroda, R

CHEMICAL COMMUNICATIONS   47 ( 36 )   10097 - 10099   2011

FLUO 27-Enantioselective photoreaction and supramolecular chirality in the solid

Kuroda, R; Sekiya, R; Asano, N; Harada, T

ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   238   2009.8

Combination between metal-ligand coordination and hydrogen bond interaction: a facile route for the construction of 3D coordination networks with the ability to include relatively large aromatic molecules

Sekiya, R; Nishikiori, S; Kuroda, R

CRYSTENGCOMM   11 ( 11 )   2251 - 2253   2009

A quadruply stranded metallohelicate and its spontaneous dimerization into an interlocked metallohelicate

Fukuda, M; Sekiya, R; Kuroda, R

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   47 ( 4 )   706 - 710   2008

Decelerated chirality interconversion of an optically inactive 3₁₀-helical peptide by metal chelation

Ousaka, N; Tani, N; Sekiya, R; Kuroda, R

CHEMICAL COMMUNICATIONS   ( 25 )   2894 - 2896   2008

Chirality realized only in the crystalline state: Inorganic and organic compounds

Kuroda, R; Harada, T; Sekiya, R

ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES   64   C34 - C34   2008

Coordination framework hosts consisting of 4-pyridyl-substituted carboxylic acid (PCA) dimers and 1D chains of Ni<SUP>2+</SUP> and SCN-:: A rational structural extension toward coordination framework hosts with large rectangular cavities

Sekiya, R; Nishikiori, S; Ogura, K

INORGANIC CHEMISTRY   45 ( 23 )   9233 - 9244   2006.11

A Hofmann pyridine complex: poly[tetra-μ-cyano-dipyridinemanganese(II)nickel(II)]

Hosoya, K; Sekiya, R; Nishikiori, S

ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS   62   M1627 - M1629   2006.7

4-(4-pyridyl)benzoic acid (PybenH) dimer: An efficient and reasonable design for a long linear bidentate building block employed in metal-organic coordination framework

Sekiya, R; Nishikiori, S; Ogura, K

CHEMISTRY LETTERS   35 ( 6 )   614 - 615   2006.6

Cu₃(CN)₄(NH₃)₂Hg(CN)₂: a novel interpenetrating framework formed from Cu<SUP>I</SUP>, Cu<SUP>II</SUP>, Hg<SUP>II</SUP> and cyanide bridges

Nishikiori, S; Sekiya, R; Hosoya, K

ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY   62   I32 - I34   2006.5

A new inclusion compound consisting of 2D coordination layers of [Cd(SCN)₂]_∞ and pillars of isonicotinamide dimers

Sekiya, R; Nishikiori, S

CHEMISTRY LETTERS   34 ( 8 )   1076 - 1077   2005.8

Crystalline inclusion compounds constructed through self-assembly of isonicotinic acid and thiocyanato coordination bridges

Sekiya, R; Nishikiori, S; Ogura, K

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   126 ( 50 )   16587 - 16600   2004.12

Design and structural extension of a supramolecular inclusion-compound host made by the formation of dimers of isonicotinic acid and thiocyanato coordinating bridges

Sekiya, R; Nishikiori, S

CHEMISTRY-A EUROPEAN JOURNAL   8 ( 20 )   4803 - 4810   2002.10

A preparative strategy for supramolecular inclusion compounds by combination of dimer formation of isonicotinic acid and coordination bonding

Sekiya, R; Nishikiori, S

CHEMICAL COMMUNICATIONS   ( 24 )   2612 - 2613   2001.12

Microwave spectroscopic and ab initio studies of pyrolysis products of 2-nitrosopropene (<i>syn</i> form) and its pyrolysis mechanism

Sakaizumi, T; Imajo, H; Sekiya, R; Kuze, N; Ohashi, O

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS   60 ( 2 )   131 - 144   2001.8

Intramolecular migration of bulky substituents in the solid state: Vinylogous pinacol rearrangements induced thermally and by acid catalysis

Sekiya, R; Kiyo-oka, K; Imakubo, T; Kobayashi, K

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   122 ( 42 )   10282 - 10288   2000.10

Mass and microwave spectroscopic studies of pyrolysates and pyrolysis mechanism of 1,1,2-trichloronitrosoethane

Sakaizumi, T; Sekiya, R; Kuze, N; Ohashi, O

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS   53 ( 2 )   177 - 184   2000.2