Japanese / English


Associate Professor Shintaro Ishida



Date of Birth

February 19, 1976



Ph.D Tohoku University (2003) (Supervisor Prof. Mitsuo Kira)

MSc Tohoku University (2000) (Supervisor Prof. Mitsuo Kira)

BSc Tohoku University (1998) (Supervisor Prof. Mitsuo Kira)


Research Experiences

2009-present: Lecturer, Graduate School of Science, Tohoku University

2006-2009: Research Assistant, Graduate School of Engineering, Gunma University


Research Interests

Organosilicon Chemistry, Structural Organic Chemistry



Incentive Award in Synthetic Organic Chemistry, Japan (2014)

Award for Encouragement of Research, The Society of Silicon Chemistry, Japan (2012)

President’s Award of Tohoku University (2003)

Inoue Research Award for Young Scientists (2003)








Strctures and Properties of Phenylene-bridged 1,3-Diaza-2-silole and Related 2H-Azasilirenes Obtained by the Reactions of a Dialkylsilylene with Arylnitriles

Shintaro Ishida, Kenya Uchida, Maiko Mori, Takeaki Iwamoto, Eur. J. Inorg. Chem., accepted.


An Isolable Silicon Analogue of a Ketone that Contains an Unperturbed Si=O Double Bond

Ryo Kobayashi, Shintaro Ishida, Takeaki, Iwamoto, Angew. Chem. int. ed., 2019,58(28), 9425-9428. (Selected as a Very Important Paper (VIP) and a cover picture. (DOI: 10.1002/anie.201905198)


Reactions of a tetrasilabicyclo[1.1.0]but-1(3)-ene with carbon tetrachloride and methanol

Takumi Nukazawa, Tomoyuki Kosai, Shunya Honda, Shintaro Ishida, Takeaki, Iwamoto, Dalton Trans., accepted.


Virtual Reaction Condition Optimization based on Machine Learning for a Small Number of Experiments in High-dimensional Continuous and Discrete Variables

Mikito Fujinami, Junji Seino, Takumi Nukazawa, Shintaro Ishida, Takeaki Iwamoto, Hiromi Nakai, Chem. Lett., accepted.


A Tetrasilicon Analogue of Bicyclo[1.1.0]but-1(3)-ene Containing a Si=Si Double Bond with an Inverted Geometry

Takeaki Iwamoto, Takashi Abe, Kunihisa Sugimoto, Daisuke Hashizume, Hiroshi Matsui, Ryohei Kishi, Masayoshi Nakano, Shintaro Ishida, Angew. Chem. Int. Ed. 2019,58(13), 4371-4375. (DOI: 10.1002/anie.201900824)


Transformative Si8R8 Siliconoids

Naohiko Akasaka, Shintaro Ishida, Takeaki Iwamoto, Inorganics., 2018, 6(4), 107.(DOI: 10.3390/inorganics6040107)


Alkoxy(tetraaryl)silicates bearing 9,10-disilatriptycene skeleton

Shintaro Ishida, Minori Takiguchi, Takeaki Iwamoto, Heteroat. Chem., 2018, 29, e21481.(DOI: 10.1002/hc.21481)


Dearomative Cycloadditions of a Silylene with Pyrazine and Quinoxaline

Shintaro Ishida, Tomofumi Tamura, Takeaki Iwamoto, Dalton Trans., 2018, 47, 11317-11321.(DOI: 10.1039/C8DT02802H)


Facile Skeletal Rearrangement of Polycyclic Disilenes with Bicyclo[1.1.1]pentasilanyl Groups

Yuki Yokouchi, Shintaro Ishida, Takeaki Iwamoto, Chem. Eur. J., 2018, 24, 11393-11401.(DOI: 10.1002/chem.201801517)


A Series of Two-coordinate Group-15 Element (P, As, Sb, Bi) Centered Radicals Having Bulky Alkyl Groups

Shintaro Ishida, Fumiya Hirakawa, Takeaki Iwamoto, Bull. Chem. Soc. Jpn., 2018, 91, 1168-1175.(DOI: 10.1246/bcsj.20180057)


Synthesis and Functionalization of a 1,2-Bis(trimethylsilyl)-1,2-disilacyclohexene That Can Serve as a Unit of cis-1,2-Dialkyldisilene

Naohiko Akasaka, Kaho Tanaka, Shintaro Ishida, Takeaki Iwamoto, Inorganics, 2018, 6(1), 21.(DOI: 10.3390/inorganics6010021)


Structural Change upon One-Electron Reduction of an Isolable Dialkylsilylene

Takashi Abe, Shintaro Ishida, Takeaki Iwamoto, Bull. Chem. Soc. Jpn., 2018, 91, 684-686.(DOI:10.1246/bcsj.20170380)


Facile synthesis and bridgehead-functionalization of bicyclo[3.3.3]pentasiloxanes

Yuki Yokouchi, Shintaro Ishida, Tsunenobu Onodera, Hidetoshi Oikawa and Takeaki Iwamoto, Chem. Commun., 2018, 54(3), 268-270.(DOI: 10.1039/C7CC08790J)


Benzodisilacyclobutadienes: 8π-Electron Systems with An Antiaromatic Silicon Ring

Shintaro Ishida, Yoshifumi Misawa, Shohei Sugawara, Takeaki Iwamoto, Angew. Chem. Int. Ed., 2017, 56, 13829-13832.(DOI: 10.1002/anie.201707553)


Heteroaryldisilenes: heteroaryl groups serve as electron acceptors for Si=Si double bonds in the intramolecular charge transfer transitions

Tomoyuki Kosai, Shintaro Ishida, Takeaki Iwamoto, Dalton Trans., 2017, 46, 11271-11281. (DOI: 10.1039/C7DT02357J)


A 1,2-Dibromosilene: Generation, Spectroscopic Observation and Isomerization to a Silacyclohexane via Facile 1,2-Bromine Shift

Shintaro Ishida, Yushi Kato, Takeaki Iwamoto, Chem. Lett., 2017, 46, 1155-1157. (DOI: 10.1246/cl.170409) (selected as “Editor’s Choice”)


Coordination-induced Hydrogen Abstraction in the Reactions of a Stable Dialkylphosphinyl Radical with BH3-Lewis Base Adducts

Shintaro Ishida, Hitomi Ichikawa, Takeaki Iwamoto, Chem. Lett., 2017, in press. (DOI: 10.1246/cl.170248)


Isolation and Characterization of Radical Anions Derived from a Boryl-Substituted Diphosphene

Shun-suke Asami, Shintaro Ishida, Takeaki Iwamoto, Katsunori Suzuki, Makoto Yamashita, Angew. Chem. Int. Ed., 2017, 56, 1658-1662. (DOI: 10.1002/anie.201611762)


Pentasila-1,4-diene: Homoconjugation between Si=Si Double Bonds via a SiMe2 Unit

Tomoyuki Kosai, Shintaro Ishida, Takeaki Iwamoto, J. Am. Chem. Soc., 2017, 139(1), 99-102.(DOI: 10.1021/jacs.6b11912)


A Two-Coordinate Cyclic (Alkyl)(amino)silylene: Balancing Thermal Stability and Reactivity

Tomoyuki Kosai, Shintaro Ishida, Takeaki Iwamoto, Angew. Chem. Int. Ed., 2016, 55, 15554-15558.(DOI: 10.1002/anie.201608736)


A Potassium Diboryllithate: Synthesis, Bonding Properties, and the Deprotonation of Benzene

Takuto Ohsato, Yuri Okuno, Shintaro Ishida, Takeaki Iwamoto, Ka-Ho Lee, Zhenyang Lin, Makoto Yamashita, and Kyoko Nozaki Angew. Chem. Int. Ed., 2016, 55, 11426-11430.

(DOI: 10.1002/anie.201605005)


Hydrogen Bonds-Enabled Design of a C1-Symmetric Chiral Brønsted Acid Catalyst

Norie Momiyama, Kosuke Funayama, Hirofumi Noda, Masahiro Yamanaka, Naohiko Akasaka, Shintaro Ishida, Takeaki Iwamoto, and Masahiro Terada. ACS Catal., 2016, 6, 949-956.

(DOI: 10.1021/acscatal.5b02079)


Ferrocenyl-substituted Bicyclo[1.1.1]pentasilanes: Evaluation of Significant Interactions between Ferrocenyl Units and Rigid Silicon Cages

Yusuke Kishimoto, Shintaro Ishida, and Takeaki Iwamoto. Chem. Lett., 2016, 2, 235-237.



Persistent four-coordinate iron-centered radical stabilized by π-donation

Yusuke Sunada, Shintaro Ishida, Fumiya Hirakawa, Yoshihito Shiota, Kazunari Yoshizawa, Shinji Kanegawa, Osamu Sato, Hideo Nagashima and Takeaki Iwamoto. Chem. Sci., 2016, 7, 191–198.

(DOI: 10.1039/C5SC02601F)


Recent Advances in η2-Disilene and η2-Disilyne Mononuclear Transition Metal Complexes and Related Compounds (For a special issue: Recent Developments in Organometallic Chemistry: 2016)

Shintaro Ishida, Takeaki Iwamoto, Coord. Chem. Rev.,(DOI:10.1016/j.ccr.2015.11.007).



Persistent Dialkylsilanone Generated by Dehydrobromination of Dialkylbromosilanol

Shintaro Ishida, Takashi Abe, Fumiya Hirakawa, Tomoyuki Kosai, Katsuhiro Sato, Mitsuo Kira, Takeaki Iwamoto. Chem. Eur. J.,2015, 21, 15100-15103.(DOI: 10.1002/chem.201501478)


Transformation of azulenes to bicyclic [4]dendralene and heptafulvene derivatives by photochemical cycloaddition of dialkylsilylene

Tomoyuki Kosai, Shintaro Ishida, Takeaki Iwamoto, Chem. Commun., 2015, 51, 10707-10709. (DOI:10.1039/C5CC03424H)


Redox Reactions of a Stable Dialkylphosphinyl Radical

Fumiya Hirakawa, Hitomi Ichikawa, Shintaro Ishida, Takeaki Iwamoto, Organometallics, 2015, 34(12), 2714–2716. (DOI:10.1021/acs.organomet.5b00323)


Reactions of a Stable Phosphinyl Radical with Stable Aminoxyl Radicals

Shintaro Ishida, Fumiya Hirakawa, Takeaki Iwamoto, Chem. Lett., 2015, 44, 94-96. (DOI:10.1246/cl.140885)


A heavy analogue of the smallest bridgehead alkene stabilized by a base

Takeaki Iwamoto, Naohiko Akasaka, Shintaro Ishida, Nat. Commun., 2014, 5, 5353. (DOI:10.1038/ncomms6353)


Two-coordinate Dialkylsilylene-Coinage Metal Complexes

Yuichiro Inagawa, Shintaro Ishida, Takeaki Iwamoto, Chem. Lett., 2014, 43, 1665-1667. (DOI:10.1246/cl.14)


Persistent Antimony- and Bismuth-Centered Radicals in Solution

Shintaro Ishida, Fumiya Hirakawa, Ko Furukawa, Kenji Yoza, Takeaki Iwamoto, Angew. Chem. Int. Ed., 2014, 53, 11172-11176. (DOI:10.1002/anie.201405509)


Germanium-centered free radicals studied by muon spin spectroscopy

Robert West, Kerim Samedov, Amitabha Mitra, Paul W. Percival, Jean-Claude Brodovitch, Graeme Langille, Brett M. McCollum, Takeaki Iwamoto, Shintaro Ishida, Cameron Jones, Jiaye Li, Can. J. Chem., 2014, 92(6): 508-513, 10.1139/cjc-2013-0427. (DOI:10.1139/cjc-2013-0427)


Isolable 2,3-Disila-1,3-butadiene via Double Sila-Peterson Reaction

Daiki Motomatsu, Shintaro Ishida, Koichi Ohno, Takeaki Iwamoto, Chem. Eur. J., 2014, 20, 9424–9430.(DOI:10.1002/chem.201402868)


Unexpected Formation of Highly Strained 2,5-Dioxa-Silabicyclo[2.1.0]Pentane by the Reaction of Isolable Dialkylsilylene with Benzil

Shintaro Ishida, Kenya Uchida, and Takeaki Iwamoto, Heteroat. Chem., 2014, 25, 348-353.(DOI:10.1002/hc.21162)


Silicon Compounds with Inverted Geometry around Silicon Atoms

Takeaki Iwamoto, Shintaro Ishida, Chem. Lett, 2014, 43, 164-170. DOI: 10.1246/cl.130856)


Multiple Bonds with Silicon: Recent Advances in Synthesis, Structure, and Functions of Stable Disilenes

Takeaki Iwamoto, Shintaro Ishida, in Structure and Bondings Vol. 156, Functional Molecular Silicon Compounds II Low Oxidation States, D. Scheschkewitz Ed., Springer-Verlag, 2014, in press.


Near-IR Absorbing Nickel(II) Porphyrinoids Prepared by Regioselective Insertion of Silylenes into Antiaromatic Nickel(II) Norcorrole

Takaki Fukuoka, Kenya Uchida, Young Mo Sung, Ji-Young Shin, Shintaro Ishida, Dr. Jong Min Lim, Satoru Hiroto, Ko Furukawa, Dongho Kim, Takeaki Iwamoto, Hiroshi Shinokubo, Angew. Chem. Int. Ed., 2014, 53, 1506-1509. (DOI:10.1002/anie.201309921)


Palladium and Platinum η2-Disilyne Complexes Bearing an Isolable Dialkyldisilyne as a Ligand

Shintaro Ishida, Ryutaro Sugawara, Yoshifumi Misawa and Takeaki Iwamoto, Angew. Chem. Int. Ed., 2013, 52, 12869-12873. (DOI: 10.1002/anie.201308517)


Anthryl-substituted 3-Silylene-2-silaaziridine Obtained by Isomerization of Disilacyclopropanimine: An Exocyclic Silene Showing Distinct Intramolecular Charge Transfer Transition

Takeaki Iwamoto, Nobuyoshi Ohnishi, Naohiko Akasaka, Koichi Ohno, and Shintaro Ishida, J. Am. Chem. Soc., 2013, 135, 10606-10609.. (DOI: 10.1021/ja404045f)


Microwave-Assisted Efficient One-Pot Synthesis of 9-Phenyl-9,10-disilatriptycene and Its Bridgehead Functionalization

Takayoshi Kuribara, Shintaro Ishida, Takako Kudo, Soichiro Kyushin, Organometallics, 2013, 32, 2092-2098. (DOI: 10.1021/om301170r)


An Organosilicon Cluster with an Octasilacuneane Core: A Missing Silicon Cage Motif

Shintaro Ishida, Kyohei Otsuka, Yuki Toma, Soichiro Kyushin, Angew. Chem. Int. Ed., 2013, 52, 2507-2510. (DOI: 10.1002/anie.201208506)


New Isolable Dialkylsilylene and Its Isolable Dimer That Equilibrate in Solution

Takashi Abe, Ryoji Tanaka, Shintaro Ishida, Mitsuo Kira, and Takeaki Iwamoto, J. Am. Chem. Soc., 2012, 134, 20029-20032. (DOI: 10.1021/ja310391m)


A Two-Coordinate Palladium Complex with Two Dialkylphosphinyl Ligands

Takeaki Iwamoto, Fumiya Hirakawa, Shintaro Ishida, Angew. Chem. Int. Ed., 2012, 51, 12111-12114. (DOI: 10.1002/anie.201206997)


Siloxy-Substituted Cyclopentadiene Showing Aggregation-Enhanced Emission: An Application of Cycloaddition of Isolable Dialkylsilylene

Shintaro Ishida, Kenya Uchida, Tsunenobu Onodera, Hidetoshi Oikawa, Mitsuo Kira, Takeaki Iwamoto, Organometallics, 2012, 31, 5983-5985. (DOI:10.1021/om3005178)


Persilastaffanes: Design, Synthesis, Structure, and Conjugation between Silicon Cages

Takeaki Iwamoto, Daisuke Tsushima, Eunsang Kwon, Shintaro Ishida, Hiroyuki Isobe, Angew. Chem. Int. Ed., 2012, 51, 2340-2344. (DOI:10.1002/anie.201106422, Press Release (2011 No.50))


A Stable Dialkylphosphinyl Radical

Shintaro Ishida, Fumiya Hirakawa, Takeaki Iwamoto, J. Am. Chem. Soc., 2011, 133, 12968-12971. (DOI:10.1021/ja205001m)


Addition of a Stable Dialkylsilylene to Carbon-carbon Unsaturated Bonds

Shintaro Ishida, Takeaki Iwamoto, Mitsuo Kira, Heteroat. Chem., 2011, 22, 432-437. (DOI:10.1002/hc.20705)


Synthesis and properties of 5,10,15,20-tetrakis[4-(alkoxysilyl)phenyl]porphyrins: an application of selective deprotection of benzaldehyde diethyl acetals in the presence of alkoxysilyl groups

Shintaro Ishida, Masayasu Ito, Hiroaki Horiuchi, Hiroshi Hiratsuka, Soshi Shiraishi, Soichiro Kyushin, Dalton Trans., 2010, 39, 9421-9426. (DOI:10.1039/C0DT00427H)


Reactions of an Isolable Dialkylsilylene with Ketones

Shintaro Ishida, Takeaki Iwamoto, Mitsuo Kira, Organometallics, 2010, 29, 5526-5534. (DOI: 10.1021/om1004644)


Selective Si-C Bond Cleavage on a Diorganosilicon Porphyrin Complex Bearing Different Axial Ligands

S. Ishida, K. Yoshimura, H. Matsumoto, S. Kyushin, Chem. Lett., 2009, 38, 362-363.


Isomerization of an Isolable Silylene into a Silene via 1,2-Silyl Migration

S. Ishida, T. Iwamoto, M. Kira, Organometallics, 2009, 28, 919-921.


Generation and Aromaticity of 2-Silaimidazolium Ion, a New p-Conjugated Silylium Ion

S. Ishida, T. Nishinaga, R. West, K. Komatsu, Chem. Commun., 2005, 6, 778-780.


The First Isolation of 1,3-Diaza-2-Sila-4-Cyclopentene Radical Cation Salt: The X-ray Structure and Electronic Properties

S. Ishida, T. Nishinaga, K. Komatsu, Chem. Lett., 2005, 34, 486-487.


A Stable Silicon-based Allene Analogue with a Formally sp-Hybridized Silicon Atom

S. Ishida, T. Iwamoto, C. Kabuto, M. Kira, Nature, 2003, 421, 725-727.


The First Isolable Dialkylsilylene

M. Kira, S. Ishida, T. Iwamoto, C. Kabuto, J. Am. Chem. Soc., 1999, 121, 9722-9723.




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