2024

1. Investigation on Aromaticity from π-Aromaticity to σ-Aromaticity (invited)
   M. Saito
   Main Group Element Chemistry Workshop 2025, Tsukuba (Japan), Mar, 2025
2. Creation of σ-Delocalization Systems and their Charge Transport Properties (invited)
   M. Saito
   Aromaticity 2025, Merida (Mexico), Jan, 2025
3. Charge Transport through Single-Molecule Junctions with σ-Orbital System
   S. Fujii, S. Seko, T. Tanaka, Y. Yoshihara, S. Furukawa, T. Nishino, M. Saito
   The 10th International Symposium on Surface Science, Kita-Kyushu (Japan), Oct, 2024
4. (σ+π)-Mixed Delocalization
   M. Saito, T. Suzuki, K. Takahashi, S. Seko, S. Furukawa, S. Fujii
   17th International Symposium on Inorganic Ring Systems, Halifax (Canada), Jul, 2024 (Cancelled)
5. Reaction of Stannacyclopentadienylidenes with Small Molecules
   K. Wada, S. Kudo, S. Furukawa, T. Murata, M. Abe, N. Nakatani, M. Saito
   The 20th International Symposium on Silicon Chemistry, Hiroshima (Japan), May, 2024
   (Poster Award)
6. A Silylium Ion Incorporated into a σ-Delocalized System (invited)
   M. Saito
   The 20th International Symposium on Silicon Chemistry, Hiroshima (Japan), May, 2024
7. Reactions of Stannacyclopentadienylidenes for the Synthesis of Heavy Cyclopentadienones
   K. Wada, S. Kudo, S. Furukawa, M. Saito
   The International Symposium on Main-group-element Chemistry, Tsukuba (Japan), May, 2024
8. Creation of a Diradical Delocalized in σ-Symmetric Orbitals Based on a Naphthalene Platform
   T. Tanaka, T. Kawaguchi, K. Ishimura, M. Minoura, H. Nagashima, S. Furukawa, H.Taniguchi, M. Saito
   The International Symposium on Main-group-element Chemistry, Tsukuba (Japan), May, 2024

2023

1. Activation of Small Molecules by Metallacyclopentadienylidenes (plenary)
   M. Saito
   17th International Conference on the Coordination and Organometallic Chemistry of Germanium, Tin and Lead, Wellington (New Zealand), Aug, 2023
2. σ-Delocalization Arising from Interactions between Lone-pairs of Non-bonded Heavy Atoms to Produce a Stable σ-Delocalized Radical (invited)
   M. Saito
   International Conference on Chemical Bonding 2023, Kauai (USA), Jul, 2023

2022

1. Lone-pair Interactions between Non-bonded Heavy Atoms on the Periphery of Benzene to Produce a (σ+π)-Double Aromatic Compound and a stable σ-Delocalized Radical (invited)
   M. Saito
   Taiwan and Saitama Friendship Symposium, Saitama (Japan), March, 2023
2. Lone-pair Interactions between Non-bonded Heavy Atoms to Produce σ-Aromatic Compounds and a Stable σ-Delocalized Radical (invited)
   M. Saito
   11th Singapore International Chemistry Conference, Singapore (Singapore), Dec, 2022
3. Development of Aromaticity from π-Aromaticity to (σ+π)-Double Aromaticity (invited)
   M. Saito
   Main Group Chemistry (IOS Publisher) Webinar (online), Nov, 2022
4. Synthesis of a Silylium Ion Incorporated into a Pentaselenylbenzene Platform (invited)
   M. Saito
   8th Asian Silicon Symposium, Taipei (Taiwan) (online), Oct, 2022
5. Coordination Chemistry Staring from Dilithio-stannoles and -plumboles (invited)
   M. Saito
   8th Asian International Conference on Coordination Chemistry, Taipei (Taiwan) (online), Aug, 2022
6. Lone-pair Interactions between Non-bonded Heavy Atoms on the Periphery of Benzene to Produce (σ+π)-Double Aromaticity (invited)
   M. Saito
   16th International Symposium on Inorganic Ring Systems, Graz (Austria), Jul, 2022
7. A Challenge to Expand Aromaticity from π-Aromaticity to (σ+π)-Double Aromaticity (invited)
   M. Saito
   29th International Conference on Organometallic Chemistry, Prague (Czech Republic), Jul, 2022
8. Charge Transport between σ-Delocalized Orbitals Using Polyiodobenzenes
   Y. Takada, S. Furukawa, M. Saito
   25th IUPAC International Conference on Physical Organic Chemistry, Hiroshima (Japan), Jul, 2022
9. A Challenge to Synthesize a Bench-stable (σ+π)-Double Aromatic Compound (invited)
   M. Saito
   25th IUPAC International Conference on Physical Organic Chemistry, Hiroshima (Japan) (online), Jul, 2022
10. Exploration of a Novel (σ+π)-Double Aromatic Compound: Synthesis of a 2,3,5,6-Tetraselenyl-1,4-ditellurenylbenzene Dication
    M. Saito, A. Watanabe, S. Furukawa and M. Minoura
    The 19th International Symposium on Novel Aromatic Compounds, Warsaw (Poland) (online), Jul, 2022

2021

1. New Horizon of Main Group and Transition-metal Aromatics: From π-Aromaticity to (σ+π)-Double Aromaticity (invited)
   M. Saito
   The 2021 International Chemical Congress of Pacific Basin Societies、Honolulu (USA) (online), Dec, 2021
2. A Silylium Ion in a Pentaselenylbenzene Platform
   M. Saito, M. Fujita, A. Watanabe, S. Furukawa
   The 19th International Symposium on Organosilicon Chemistry, Toulouse (France) (online), Jul, 2021
3. Expansion of Aromaticity from π-Aromaticity to (σ+π)-Double Aromaticity (plenary)
   M. Saito
   International Conference "Students for Students" XVIIth Edition, Cluj-Napoca (Romania) (online), Apr, 2021

2020

1. Synthesis of Dibenzopentalenides by the Reduction of Phenylsilylacetylenes with Alkaline Metals −from by chance to on purpose− (invited)
   M. Saito
   Main Group Chemistry (IOS Publisher) 1st Webinar (online), Jan, 2021

2019

1. "Synthesis and Properties of σ–π Mixed Delocalized Compounds Bearing a Pentaiodophenyl Group as a σ-Symmetric Delocalized Unit
   Y. Takada, S. Furukawa, M. Saito
   The 9th International Meeting on Halogen Chemistry, Perugia (Italy), Sep, 2019
   (Poster Award 3rd Place)
2. Charge Transport Properties of Polyiodobenzenes Bearing σ-Symmetric Delocalized Orbitals
   S. Furukawa, Y. Takada, M. Yamagishi, T. Okamoto, J. Takeya, M. Saito
   The 9th International Meeting on Halogen Chemistry, Perugia (Italy), Sep, 2019
3. Synthesis of Transition-metal Complexes Bearing Plumbole Dianionic Ligands and their Structures and Catalytic Activity
   M. Saito, M. Nakada, T. Kuwabara, S. Furukawa, M. Minoura, R. Narayanan, M. Abe, M. Hada, K. Tanaka, Y, Yamamoto
   XVIth International Conference on the Coordination and Organometallic Chemistry of Germanium, Tin and Lead, Saitama (Japan), Sep, 2019
4. Reactions of a Dilithioplumbole with a Hafnium Reagent
   R. Owada, S. Furukawa, M. Saito
   XVIth International Conference on the Coordination and Organometallic Chemistry of Germanium, Tin and Lead, Saitama (Japan), Sep, 2019
5. Creation of New Extended π-Conjugated Molecules by Double Cross-Coupling Reactions of Stannafluorenes
   H. Iwabuchi, H. Chiba, T. Nakao, M. Shimizu, S. Furukawa, M. Saito
   XVIth International Conference on the Coordination and Organometallic Chemistry of Germanium, Tin and Lead, Saitama (Japan), Sep, 2019
6. Hexaselenylbenzene Dication Salt: a Bench-stable σ- and π-Double Aromatic Compound
   M. Saito, S. Furukawa, M. Fujita, Y. Kanatomi, M. Minoura, M. Hatanaka, K. Morokuma, K. Ishimurabr>The 18th International Symposium on Novel Aromatic Compounds, Sapporo (Japan), Jul, 2019
7. A Novel (σ+π) Double Aromatic Compound: Synthesis and Characterization of 2,3,5,6-Tetraselenyl-1,4-ditellanylbenzene Dication Salt and its Unique Isomerization
   A. Watanabe, S. Furukawa, M. Saito
   The 18th International Symposium on Novel Aromatic Compounds, Sapporo (Japan), Jul, 2019
8. Creation of Extended π-Conjugated Molecules by Double Cross-Coupling Reactions of Tristannasumanenes
   H. Iwabuchi, H. Chiba, T. Nakao, M. Shimizu, S. Furukawa, M. Saito
   The 18th International Symposium on Novel Aromatic Compounds, Sapporo (Japan), Jul, 2019

2018

1. Challenge to Expand Aromaticity‒From π-Aromaticity to σ+π-Double Aromaticity‒ (invited)
   M. Saito
   Aromaticity 2018, Riviera Maya (Mexico), Nov, 2018
2. Expansion of Aromaticity: From π-Aromaticity to σ+π-Double Aromaticity (plenary)
   M. Saito
   XXIst International Symposium "Advances in Chemistry of Heteroorganic Compounds, Łódź (Poland), Nov, 2018
3. Transition-metal Complexes Derived from Tin- and Lead-Bearing Aromatic Dianionic Ligands (plenary)
   M. Saito
   XVIII International Symposium on Selected Problems of Chemistry of Acyclic and Cyclic Heteroorganic Compounds, Częstochowa (Poland), Nov, 2018
4. Synthesis of Dibenzopentalenides by the Reduction of Phenylsilylacetylenes −from by chance to on purpose− (invited)
   M. Saito
   9th European Silicon Days, Saarbrücken (Germany), Sep, 2018
5. Covalent Organic Frameworks Containing Bowl-Shaped Trichalcogenasumanenes as π-Frameworks
   S. Furukawa, K. Hayashi, M. Katouda, I. Hisaki, D. Sakamaki, S. Seki, M. Saito
   The Third International Symposium on the Synthesis and Application of Curved Organic π-Molecules & Materials, Oxford (UK), Sep, 2018
6. Covalent Organic Frameworks Composed of Bowl-Shaped Trichalcogenasumanenes as π-Frameworks
   S. Furukawa, K. Hayaashi, M. Katouda, Y. Imamura, M. Tashiro, I. Hisaki, D. Sakamaki, S. Seki, M. Saito
   28th International Symposium on the Organic Chemistry of Sulfur, Tokyo (Japan), Aug, 2018
7. Application of Janus-Type π-Conjugated Molecule to Work Function Control of Metal Substrates
   Y. Suda, S. Furukawa, Y. Shitara, A. Fujimori, M. Saito
   28th International Symposium on the Organic Chemistry of Sulfur, Tokyo (Japan), Aug, 2018
8. Organic Ferroelectricity of Trithiasumanenes Arising from Bowl-to-Bowl Inversion
   M. Koyama, J. Wu, T. Akutagawa, S. Furukawa, M. Saito
   28th International Symposium on the Organic Chemistry of Sulfur, Tokyo (Japan), Aug, 2018
9. Systematic Synthesis of Spiro-Type Heterasumanenes and Their Structures and Redox Properties
   K. Yamagishi, K. Hayashi, S. Furukawa, M. Saito
   28th International Symposium on the Organic Chemistry of Sulfur, Tokyo (Japan), Aug, 2018
10. A Bench-stable Compound Possessing (σ+π) Double Aromaticity (invited)
    M. Saito
    International Conference on Chemical Bonding 2018, Kauai (USA), Jul, 2018
11. Double Aromaticity in Polyselanyl-substituted Benzene Dications Arising from σ- and π-Rings (invited)
    M. Saito
    The 15th International Symposium on Inorganic Ring Systems, Uji (Japan), Jun, 2018
12. Synthesis of Octakis(arylselanyl)naphthalene Dications and Evaluation of their Extended Double Aromatic Character
    S. Mibu, S. Furukawa, M. Saito
    The 15th International Symposium on Inorganic Ring Systems, Uji (Japan), Jun, 2018
13. Reactivity of a Zero-Valent Tin Complex Stabilized by a Butadiene Ligand
    S. Kobayashi, S. Furukawa, M. Saito
    The 15th International Symposium on Inorganic Ring Systems, Uji (Japan), Jun, 2018

2017

1. Double Aromaticity in a Hexaselanylbenzene Dication
   Masaichi Saito, Syunsuke Furukawa, Masahiro Fujita, Takumi Suzuki, Yoshihiko Kantomi, Mao Minoura, Miho Hatanaka, Keiji Morokuma, Kazuya Ishimura
   12th International Conference on Heteroatom Chemistry, Vancouver (Canada), Jun, 2017
2. Redox Behavior of Polyselanylbenzenes Controlled by σ-Orbital Interactions
   Masaichi Saito, Syunsuke Furukawa, Takumi Suzuki, Masahiro Fujita
   12th International Conference on Heteroatom Chemistry, Vancouver (Canada), Jun, 2017

2016

1. Synthesis, Structure and Properties of Heterobimetallic Triple-Decker Complex Derived from Dilithiostannole
   Masaichi Saito, Naoki Matsunaga, Syunsuke Furukawa, Guo Jing Dong, Shigeru Nagase
   XVth International Conference on the Coordination and Organometallic Chemistry of Germanium, Tin and Lead, Pardubice (Czech), Aug, 2016
2. Aromatic and Antiaromatic Compounds with Tin and Lead Atoms: New Building Blocks for π-Figuration (invited)
   Masaichi Saito
   XVth International Conference on the Coordination and Organometallic Chemistry of Germanium, Tin and Lead, Pardubice (Czech), Aug, 2016
3. Triphosphasumanene
   Shunsuke Furukawa, Junji Kobayashi, Takayuki Kawashima, Masaichi Saito
   The 21st International Conference on Phosphorus Chemistry, Kazan (Russia), Jun, 2016

2015

1. Synthesis, Structures and Reactions of Antiaromatic Organolead Compounds Stabilized by Lewis Bases
   Masaichi Saito，Tomoki Akiba，Marisa Nakada，Misumi Kaneko，Shunsuke Furukawa，Minoura Mao，Masahiko Hada
   The 14th International Symposium on Inorganic Ring Systems、Regensburg (Germany). July. 2015
2. Replacement of a Skeletal Carbon Atom by a Heavier Atom to Tune the Properties of the Cp Ligand（Invited）
   Masaichi Saito
   8th International Conference on Materials for Advanced Technologies of the Materials Research Society of Singapore
   (Singapore), June, 2015
3. New Insight into the Chemistry of Sandwich Complexes: Utilization of Metallole Dianion（Invited）
   Masaichi Saito
   11th International Conference on Heteroatom Chemistry (Caen, France), June, 2015

2014

1. Synthesis of Tin and Lead Analogs of Cyclopentadienyl Anion and their Application to Transition-metal Complexes（Invited）
   Masaichi Saito
   Molecular Complexity in Modern Chemistry (Moscow, Russia), September, 2014
2. Aromatic and Antiaromatic Organolead Compounds: Dilithioplumbole and Plumbacyclopentadienylidene（Invited）
   Masaichi Saito
   41st International Conference on Coordination Chemistry (Singapore, Singapore), July, 2014
3. Transition-metal Complexes Derived from Aromatic Tin-containing Cyclopentadienyl Analogs（Invited）
   Masaichi Saito
   26th International Conference on Organometallic Chemistry (Sapporo, Japan), July, 2014
4. Synthesis and Reactivity of THF-Stabilized Plumbacyclopentadienylidene
   Tomoki Akiba，Toshiaki Kawamura，Minori Abe，Masahiko Hada，Masaichi Saito
   26th International Conference on Organometallic Chemistry (Sapporo, Japan), July, 2014
5. The Heaviest Ruthenocene Derived from a Silyl-substituted Dilithioplumbole
   Marisa Nakada，Takuya Kuwabara，Masaichi Saito
   26th International Conference on Organometallic Chemistry (Sapporo, Japan), July, 2014

2013

1. Synthesis, Structures and Properties of Transition-metal Complexes Derived from Tetraethyldilithiostannole and their
   Related Compounds（Invited）
   Masaichi Saito
   14th International Conference on the Coordination and Organometallic Chemistry of Germanium Tin and Lead (Baddeck, Canada), July, 2013
2. Synthesis and Structures of the First ^5-Stannole Transition-metal Complexes
   Takuya Kuwabara，Masaichi Saito，Guo Jing Dong，Shigeru Nagase
   14th International Conference on the Coordination and Organometallic Chemistry of Germanium Tin and Lead (Baddeck, Canada), July, 2013
3. Synthesis of Sterically Congested Germyldichlorophosphine and its Unexpected Reactivity
   Nobuaki Kurokawa，Masaichi Saito
   14th International Conference on the Coordination and Organometallic Chemistry of Germanium Tin and Lead (Baddeck, Canada), July, 2013

2012

1. Reactions of Dibenzopentalene Derived from Bulky Phenylsilylacetylene" 4st Asian Silicon Symposium
   Masaichi Saito，Yoko Hashimoto，Michio Nakamura，Tomoyuki Tajima，Kazuya Ishii，Shigeru Nagase， Mao Minoura
   4st Asian Silicon Symposium (Tsukuba, Japan), October, 2012
2. Synthesis, Structure and Reactions of Sterically Congested Lithiogermane
   Nobuaki Kurokawa，Masaichi Saito
   4st Asian Silicon Symposium (Tsukuba, Japan), October, 2012
3. Synthesis, Structures and Reactions of Stannylene-bridged Ru Complexes Derived from Tetraethyldilithiostannole
   Masaichi Saito，Takuya Kuwabara，Guo Jing Dong，Shigeru Nagase
   13th International Symposium on Inorganic Ring Systems (Victoria, Canada), July, 2012
4. Unexpected Dehalogenation Reactions of Dichloroborane Bearing a NCN-Pincer Ligand
   Masaichi Saito，Kaori Matsumoto，Mao Minoura
   13th International Symposium on Inorganic Ring Systems (Victoria, Canada), July, 2012
5. Synthesis and Structures of Titanastannene Coordinated by a Stannylene and Ti2Sn4 Ring Compound
   Takuya Kuwabara，Masaichi Saito，Guo Jing Dong，Shigeru Nagase
   13th International Symposium on Inorganic Ring Systems (Victoria, Canada), July, 2012
6. Our Recent Challenge to Expand the Concept of Aromaticity to Tin- and Lead-containing Carbon Ring Compounds
   Masaichi Saito，Masafumi Sakaguchi，Tomoyuki Tajima，Kazuya Ishimura，Shigeru Nagase，Masahiko Hada
   The 2012 Gordon Research Conference on Inorganic Chemistry (Biddeford, USA), June, 2012
7. Synthesis, Structures and Reactions of Aromatic and Antiaromatic Lead-containing Compounds
   Masaichi Saito，Masafumi Sakaguchi，Tomoyuki Tajima，Misumi Kaneko，Kazuya Ishimura，Shigeru Nagase，Masahiko Hada
   The 10th International Conference on Heteroatom Chemistry (Uji, Japan), May, 2012
8. Reactions of Dilithiostannole with Group 4 and 10 Transition Metal Complexes
   Takuya Kuwabara，Masaichi Saito，Jing Dong Guo，Shigeru Nagase
   The 10th International Conference on Heteroatom Chemistry (Uji, Japan), May, 2012
9. Debromination Reactions of 1,2-Bis(phenylseleno)benzene Dibromide
   Masahiro Fujita，Masaichi Saito
   The 10th International Conference on Heteroatom Chemistry (Uji, Japan), May, 2012
10. ? Synthesis and Structures of Stannylene-bridged Ru Complexes from Tetraethyldilithiostannole（Invited）
    Masaichi Saito，Takuya Kuwabara，Jing Dong Guo，Shigeru Nagase
    The 3rd Tsukuba International Mini-symposium on Hybridization between Main Group Element Chemistry and ?-Electron Chemistry -ICHAC-10 Pre-symposium in Tsukuba (Tsukuba, Japan), 2012

2011

1. Dilithioplumbole: The Heaviest Aromatic Cyclopentadienyl Analog
   Masaichi Saito，Masafumi Sakaguchi，Tomoyuki Tajima ，Kazuya Ishimura，Shigeru Nagase，Masahiko Hada
   14th International Symposium on Novel Aromatic Compounds (Eugene, USA), July, 2011
2. Synthesis, Structures and Properties of Heterasumanenes with no Substituents on the exo Carbon Atom
   Tomoharu Tanikawa，Tomoyuki Tajima，Masaichi Saito，Guo Jing Dong，Shigeru Nagase
   The 2011 Gordon Research Conference (Holderness, USA), June, 2011

2010

1. Dilithioplumbole: Aromatic Lead-Analog of Cyclopentadienyllithium
   Masaichi Saito，Masafumi Sakaguchi，Tomoyuki Tajima，Kazuya Ishimura，Shigeru Nagase，Masahiko Hada
   XIIIth International Conference on the Coordination and Organometallic Chemistry of Germanium Tin and Lead (Graz, Austria), July, 2010
2. Synthesis and Structure of Tetraethyldilithiostannole and its Reactivity
   Masaichi Saito，Takuya Kuwabara，Kazuya Ishimura，Shigeru Nagase
   XIIIth International Conference on the Coordination and Organometallic Chemistry of Germanium Tin and Lead (Graz, Austria), July, 2010

2009

1. Synthesis of Novel Heterasumanenes Having Group 14 and 16 Functionalities
   Tomoharu Tanikawa，Masaichi Saito
   12th International Symposium on Inorganic Ring Systems (Goa, India), August, 2009
2. Synthesis and Reactions of a Trianion Equivalent, the First Trilithiostannane
   Masaichi Saito，Tomoyuki Tajima，Masatoshi Ikeda，Kazuya Ishimura，Shigeru Nagase
   The 9th International Conference on Heteroatom Chemistry (Oviedo, Spain), July, 2009
3. Unusual Trifunctionalized Organotin Compounds, Trihydroxystannane and Trilithiostannane
   Masaichi Saito，Tomoyuki Tajima，Masatoshi Ikeda，Michikazu Yoshioka，Monique Biesemans，Rudolph Willem，Masao Minoura，Kazuya Ishimura，Shigeru Nagase
   XVIIIth EuCheMS Conference on Organometallic Chemistry (Gothenburg, Sweden), June, 2009

2008

1. Synthesis, Structure and Reactions of a Trianion Equivalent, Trilithiostannane
   Masaichi Saito，Tomoyuki Tajima，Masatoshi Ikeda，Kazuya Ishimura，Shigeru Nagase
   The 2nd International Symposium on Molecular Theory for Real Systems (Okazaki, Japan), August, 2008
2. Challenge to Extend the Concept of Aromaticity: Synthesis and Reactions of Plumbole Anions and Dianions
   Masaichi Saito，Masafumi Sakaguchi，Kazuya Ishimura，Shigeru Nagase
   The 23rd International Conference on Organometallic Chemistry (Rennes, France), July, 2008
3. Challenge to Extend the Concept of Aromaticity to Tin-containing Carbocyclic Compounds:
   Synthesis, Structures and Reactions of Stannole Dianions
   Masaichi Saito
   Post ISOS-XV Symposium (Takasaki, Japan), June, 2008
4. Stepwise Construction of 9-Heterafluorene Skeletons: From Triphenylene to Heterasumanene
   Tomoharu Tanikawa，Masaichi Saito
   Post ISOS-XV Symposium (Takasaki, Japan), June, 2008
5. Isolation and Reactions of the First Plumbole Dianion
   Masafumi Sakaguchi，Masaichi Saito，Kazuya Ishimura，Shigeru Nagase
   Post ISOS-XV Symposium (Takasaki, Japan), June, 2008
6. Synthesis and Isolation of a Dithienostannole Anion
   Munenori Shiratake，Masaichi Saito
   Post ISOS-XV Symposium (Takasaki, Japan), June, 2008
7. Redox Reactions of a Novel 5, 10-Disiladibenzo[a,e]pentalene
   Yoko Hashimoto，Masaichi Saito
   Post ISOS-XV Symposium (Takasaki, Japan), June, 2008
8. Heteroatom Functionalization of Triphenylene Toward Heterasumanene
   Masaichi Saito，Tomoharu Tanikawa，Tomoyuki Tajima
   The 15th International Symposium on Organosilicon Chemistry (Jeju, Korea), June, 2008

2007

1. Reduction of Phenyl Silyl Acetylene with Lithium to Afford Unexpected Dilithium Dibenzopentalenide with 1,4-Dilithio-1,3-butadiene
   Masaichi Saito，Michio Nakamura，Tomoyuki Tajima，Michikazau Yoshioka
   XVIIth EuCheMS Conference on Organometallic Chemistry (Sofia, Bulgaria), September, 2007
2. Synthesis and Structure of the First Stable Pentaorganostannate Bearing Five Carbon Substituents
   Masaichi Saito，Sanae Imaizumi，Tomoyuki Tajima，Kazuya Ishimura，Shigeru Nagase
   8th International Conference on Heteroatom Chemistry (Riverside, USA), August, 2007
3. The First Tin-containing Carbocyclic Aromatic Compounds: Stannole Dianions
   Masaichi Saito，Ryuta Haga，Chika Kambayashi，Tomoyuki Tajima，Masakazu Shimosawa，Michikazu Yoshioka，Kazuya Ishimura，Shigeru Nagase
   12th International Symposium on Novel Aromatic Compounds (Awajishima, Japan), July, 2007
4. Plumbole Dianions: The Heaviest Aromatic System Containing Group 14 Elements
   Masafumi Sakaguchi，Masaichi Saito
   12th International Symposium on Novel Aromatic Compounds (Awajishima, Japan), July, 2007
5. Synthesis and Reactions of Dithienostannoles
   Munenori Shiratake，Masaichi Saito
   12th International Symposium on Novel Aromatic Compounds (Awajishima, Japan), July, 2007
6. Heavier Aromatic Systems: Stannole and Plumbole Dianions
   Masaichi Saito，Chika Kambayashi，Tomoyuki Tajima，Masafumi Sakaguchi，Ryuta Haga，Kazuya Ishimura，Shigeru Nagase
   XIIth International Conference on the Coordination and Organometallic Chemistry of Germanium Tin and Lead (Galway, Ireland), July, 2007
7. Unique Nucleophilic Reaction on the Tin Atom: Formation of the First Stable Pentaorganostannate Bearing Five Carbon Substituents
   Masaichi Saito，Sanae　Imaizumi，Tomoyuki Tajima，Kazuya Ishimura，Shigeru Nagase
   XIIth International Conference on the Coordination and Organometallic Chemistry of Germanium Tin and Lead (Galway, Ireland), July, 2007

2006

1. Synthesis and Structure of Pentachalcogenadistannabicyclo[3.1.1]heptanes
   Masaichi Saito，Hizuru Hashimoto，Tomoyuki Tajima，Masatoshi Ikeda
   The 1st International Symposium for Young Elements Chemists, 2006 Workshop on Organometallic Chemistry (Uji, Japan), December, 2006
2. Oxidation of Stannole Dianions
   Masaichi Saito，Ryuta Haga，Chika Kambayashi，Tomoyuki Tajima，Kazuya Ishimura，Shigeru Nagase
   2nd Core-to-Core Symposium on Main Group Element Chemistry (Tokyo, Japan), August, 2006
3. Reactions of Cyclopentadienone with Sulfur Reagents
   Masaichi Saito，Toru Ito
   22nd International Symposium on the Organic Chemistry of Sulfur (Saitama, Japan), August, 2006
4. Synthesis and Structure of Polythiadistannabicyclo[k.l.m]alkanes
   Masaichi Saito，Hizuru Hashimoto，Tomoyuki Tajima
   22nd International Symposium on the Organic Chemistry of Sulfur (Saitama, Japan), August, 2006
5. Synthesis and Structure of Polychalcogenadistannabicyclo[k.l.m]alkanes
   Masaichi Saito，Hizuru Hashimoto，Masatoshi Ikeda，Tomoyuki Tajima，Michikazu Yoshioka
   11th International Conference on Inorganic Ring Systems (Oulu, Finland), August, 2006
6. Synthesis and Structure of C-Phenylated and C-Ethylated Stannole Dianions
   Masaichi Saito，Ryuta Haga，Chika Kambayashi，Kazuya Ishimura，Shigeru Nagase
   XXIInd International Conference on Organometallic Chemistry (Zaragoza, Spain), July, 2006