Publications

2022

"Recent progress in transition metal complexes supported by multidentate ligands featuring group 13 and 14 elements as coordinating atoms"

T. Komuro, Y. Nakajima,* J. Takaya,* H. Hashimoto,*

Coord. Chem. Rev., 2022, XX, XXX-XXX. (DOI: 10.1016/j-ccr.2022.214837.)

"Iridium Complexes with a Naphthyridine-Based Si,N-Ligand: Synthesis and Catalytic Activity toward Olefin Hydrogenation"

K. Sato, T. Komuro,* T. Osawa, H. Hashimoto,* H. Tobita,

Organometellics, 2022, 41, 2612–2621. (DOI: org/10.1021/acs.organomet.2c00373).

"Iridium and rhodium complexes bearing a silyl-bipyridine pincer ligand: synthesis, structures and catalytic activity for C–H borylation of arenes"

T. Komuro,* D. Mochizuki, H. Hashimoto,* H. Tobita,

Dalton Trans. 2022, 51, 9983–9987. (DOI: 10.1039/d2dt01227h).

2021

"Catalysts for Regio- and Stereoselective C(sp3)−H Deuteration of Tricyclohexylphosphine with Benzene‐d6 Generated via Dehydrochlorination of Chlorido(dihydrido)iridium Complexes Containing a Xanthene-Based Bis(silyl) Chelate Ligand"

T. Komuro,* J. Asagami, H. Higashi, K. Sato, H. Hashimoto,* H. Tobita

Organometallics, 2021, 40, 3113-3123. (DOI: 10.1021/acs.organomet.1c00359).

"Transition-metal Complexes with Triple Bonds to Si, Ge, Sn, and Pb and Relevant Complexes"

H. Hashimoto *, K. Nagata

Chem. Lett. 2020, 50, 778-787. (DOI: doi: 10.1246 / cl.200872).

Selected as "Highlight Review" and "Inside Cover"

2020

"Synthesis of a Molybdenum Hydrido (hydrogermylene) Complex and Its Conversion to a Germylene Complex: Another Route through Dehydrogenation with Nitriles"

TP Dhungana, H. Hashimoto *, M. Ray, H. Tobita *

Organometallics 2020, 39 , 4350-4361 (DOI: 10.1021 / acs.organomet.0c00518).

"Bifunctional Rhodium Complex Featuring a Silyl–1,8-Naphthyridine Si, N-Chelate Ligand: Cooperation of Metal and Pendant Base for Capture and Bond-Weakening of BH3"

K. Sato, T. Komuro *, H. Hashimoto *, H. Tobita

Chem. Lett. 2020, 49 , 1431-1434 (DOI: 10.1246 / cl.200489).

"Products of [2 + 2] Cycloaddition between a W≡Si Triple-bonded Complex and Alkynes: Isolation, Structure, and Non-classical Bonding Interaction"

T. Yoshimoto, H. Hashimoto *, M. Ray *, N. Hayakawa, T. Matsuo, J. Chakrabarti, H. Tobita *

Chem. Lett. 2020, 49, 311-314 (DOI: 10.1246 / cl.190952).

2019

"Reactions of a Silylyne Complex with Aldehydes: Formation of W-Si-OC Four-Membered Metallacycles and Their Metathesis-Like Fragmentation"

T. Yoshimoto, H. Hashimoto *, N. Takagi, S. Sakaki, N. Hayakawa, T. Matsuo, H. Tobita *

Chem. Eur. J. 2019, 25, 3795-3798 (DOI: 10.1002 / chem.201900457).

2018

"Recent Advances in the Chemistry of Transition Metal–Silicon / Germanium Triple-Bonded Complexes"

H. Hashimoto *, H. Tobita *

Coord. Chem. Rev. 2018, 355, 362-379 (DOI: 10.1016 / j.ccr. 2017.09.023).

2017

"NHC-Induced Conversion of a W–Ge Double Bond into the Triple Bond through Formation of W–Ge single and Double Bonded Intermediates"

T. Fukuda, H. Hashimoto *, H. Tobita *,

J. Organomet. Chem. 2017, 848, 89-94 (DOI: 10.1016 / j.jorganchem.2017.07.027).

"Hydrogen-bridged bis (silylene) complexes of ruthenium and iron: synthesis, structures and multi-centre bonding interactions at the M–Si–H–Si four-membered ring"

H. Hashimoto *, K. Komura, T. Ishizaki, Y. Odagiri, H. Tobita *

Dalton Trans. 2017, 46, 8701-8704 (DOI: 10.1039 / c7dt00505a).

"An Iron Germylene Complex Having Fe–H and Ge–H Bonds: Synthesis, Structure and Reactivity"

TP Dhungana, H. Hashimoto *, H. Tobita *

Dalton Trans. 2017, 46, 8167-8179 (DOI: 10.1039 / C7DT01159H).

2016

"Rhodium-catalyzed P–P bond exchange reaction of diphosphine disulfides"

M. Arisawa *, T. Yamada, S. Tanii, Y. Kawata, H. Hashimoto, M. Yamaguchi *

Chem. Comm. 2016, 52, 13580-13583 (DOI: 10.1039 / c6cc07302f).

"A Silylyne Tungsten Complex Having an Eind Group on Silicon: Its Dimer-Monomer Equilibrium and Cycloaddition Reactions with Carbodiimide and Diaryl Ketones"

T. Yoshimoto, H. Hashimoto *, N. Hayakawa, T. Matsuo, H. Tobita *

Organometallics 2016, 35, 3444-3447 (DOI: 10.1021 / acs.organomet.6b00670).

"Synthesis of a Tungsten-Silylyne Complex via Stepwise Proton and Hydride Abstraction from a Hydrio Hydrosilylene Complex"

T. Fukuda, T. Yoshimoto, H. Hashimoto *, Hiromi Tobita *

Organometallics 2016, 35, 921-924 (DOI: 10.1021 / acs.organomet.6b00095).

"Stabilization of a Silaaldehyde by its η2-Coordination to Tungsten"

T. Fukuda, H. Hashimoto *, S. Sakaki, H. Tobita *

Angew. Chem. Int. Ed. 2016, 55, 188-192. (DOI: 10.1002 / anie.201507956).

2015

"Unexpected Formation of NHC-Stabilized Hydrosilylyne Complexes via Alkane Elimination from Hydrido (alkylsilylene) Complexes"

T. Fukuda, H. Hashimoto *, H. Tobita *

J. Am. Chem. Soc. 2015, 137, 10906-10909 (DOI: 10.1021 / jacs.5b06366).

"Linking of phosphinidene-capped triruthenium carbonyl clusters with diphosphine ligands"

T. Kakizawa, H. Hashimoto *, H. Tobita *

Inorg. Chim. Acta. 2015, 425, 7-10 (DOI: 10.1016 / j.ica. 2014.09.003).

"Isolation of a Hydrogen-Bridged Bis (silylene) Tungsten Complex: A Snapshot of a Transition State for 1,3-Hydrogen Migration"

H. Hashimoto *, Y. Odagiri, Y. Yamada, N. Takagi, S. Sakaki, H. Tobita *

J. Am. Chem. Soc. 2015, 137, 158-161 (DOI: 10.1021 / ja512336v).

2014

"Reactions of a Tungsten-Germylyne Complex with α, β-Unsaturated Ketones: Complete Cleavage of the W≡Ge Bond and Formation of Two Types of η3-Germoxyallyl Tungsten Complexes"

T. Fukuda, H. Hashimoto *, H. Tobita *

J. Am. Chem. Soc. 2014, 136, 80-83 (DOI: 10.1021 / ja4109853).

2013

"Reactions of a tungsten–germylyne complex with alcohols and arylaldehydes"

T. Fukuda, H. Hashimoto *, H. Tobita *

Chem. Commun. 2013, 49, 4232-4234 (DOI: 10.1039 / c2cc37126j).

2012

High-period analogs of carbene complexes: Synthesis of novel silylene and gelmilene complexes and reaction with unsaturated organic compounds

Hisako Hashimoto *, Hiromi Tobita *

Journal of Synthetic Organic Chemistry, 2012, 70, 131-141 (DOI: 10.5059 / yukigoseikyokaishi.70.131 ).

"Hydrido (hydrosilylene) tungsten Complexes: Dynamic Behavior and Reactivity Toward Acetone "

T. Watanabe, H. Hashimoto, H. Tobita *

Chem. Asian J. 2012, 7, 1408-1416 (DOI: 10.1002 / asia.201101058).

"Formation of a Germylyne Complex: Dehydrogenation of a Hydrido (hydrogermylene) tungsten Complex with Mesityl Isocyanate"

H. Hashimoto *, T. Fukuda, H. Tobita *, M. Ray, S. Sakaki

Angew. Chem. Int. Ed. 2012, 51, 2930-2933 (DOI: 10.1002 / anie.201107501).

"Reactions of a Neutral Silylene Ruthenium Complex with Heterocumulenes: C = O Hydrosilylation of Isocyanates vs C = S BondCleavage of Isothiocyanate"

M. Ochiai, H. Hashimoto *, H. Tobita *

Organometallics 2012, 31,527-530 (DOI: 10.1021 / om2010854).

2010

"Experimental and Theoretical Study of Tungsten Dihydride Silyl Complex: New Insight into Their Bonding Nature and Fluxional Behavior"

M. Ray, Y. Nakao, H. Sato, S. Sakaki *, T. Watanabe, H. Hashimoto *, H. Tobita

Organometallics 2010, 29, 6267-6281 (DOI: 10.1021 / om100653v).

"Synthesis of η2-Cyclooctene Iridium and Rhodium Complexes Supported by a Novel P, N-Chelate Ligand and Their Reactivity toward Hydrosilanes: Facile Cl Migration from Metal to Silicon via Silylene Complex Intermediates and Formation of a Base-Stabilized Silylene Complex"

H. Hashimoto *, T. Suzuki, H. Tobita *

Dalton Trans. 2010, 39, 9386-9400 (DOI: 10.1039 / c0dt00264j).

"Reactions of a Hydrido (hydrogermylene) tungsten Complex with Some Heterocumulenes: Hydrogermylation and Thermal Rearrangement"

H. Hashimoto *, T. Fukuda, H. Tobita *

New J. Chem. 2010, 34, 1723-1730 (DOI: 10.1039 / c0nj00137f).

2009

"Synthesis and Structure of a Hydrido (hydrogermylene) tungsten Complex and Its Reactions with Nitriles and Ketones"

H. Hashimoto *, T. Tsubota, T. Fukuda, H. Tobita *

Chem. Lett. 2009, 1196-1197 (DOI: 10.1246 / cl.2009.1196 ).

"Synthesis and Properties of a Silyl (silylene) ruthenium Complex: Activation Barrier of the Ru = Si Bond Rotation and Facile Replacement of the Methyl Groups with Alkoxy Groups of a Silyl Ligand"

H. Hashimoto *, J. Sato, H. Tobita *

Organometallics 2009, 28, 3963-3965 (DOI: 10.1021 / om900177z).

"Reactions of a Hydrido (hydrosilylene) ruthenium Complex with Carbonyl Compounds"

M. Ochiai, H. Hashimoto, H. Tobita,

Dalton Trans. 2009, 1812-1814 (DOI: 10.1039 / B819229B).

2007

"Synthesis and Structure of a Hydrido (hydrosilylene) ruthenium Complex and Its Reactions with Nitriles"

M. Ochiai, H. Hashimoto *, H. Tobita *

Angew. Chem. Int. Ed. 2007, 46, 8192-8194 (DOI: 10.1002 / anie.200703154).

"Reactions of Hydrido (hydrosilylene) tungsten Complexes with α, β-Unsaturated Carbonyl Compounds: Selective Formation of (η3-Siloxyallyl) tungsten Complexes"

T. Watanabe, H. Hashimoto *, H. Tobita *

J. Am. Chem. Soc. 2007, 129, 11338-11339 (DOI: 10.1021 / ja074629e).

"Reactions of a Hydrido (hydrosilylene) tungsten Complex with Oxiranes"

H. Hashimoto, M. Ochiai, H. Tobita,

J. Organomet. Chem. 2007, 692, 36-43 (DOI: 10.1016 / j.jorganchem.2006.08.071.).

2006

"Stoichiometric Hydrosilylation of Nitriles with Hydrido (hydrosilylene) tungsten Complexes: Formation of W-Si-N Three-Membered Complexes and Their Unique Thermal Behaviors"

T. Watanabe, H. Hashimoto *, H. Tobita *

J. Am. Chem. Soc. 2006, 128, 2176-2177 (DOI: 10.1021 / ja056715p).

"Reactions of a Silyl (silylene) Iron Complex with Nitriles: Carbon–Carbon Bond Cleavage of Nitriles by the Transiently Generated Disilanyliron (II) Intermediate"

H. Hashimoto *, A. Matsuda, H. Tobita *

Organometallics 2006, 25, 472-476 (DOI: 10.1021 / om0507530).

"Synthesis and Structural characterization of Mesitylphosphinidene-Capped Ruthenium and Osmium Clusters"

T. Kakizawa, H. Hashimoto, H. Tobita

J. Organomet. Chem. 2006, 691, 726-736 (DOI: 10.1016 / j.jorganchem.2005.10.011).

2005

"Nonphotochemical Synthesis of a Base-free Silyl (silylene) iron Complex and Its Reaction with CO: Another Direct Evidence for Reversible 1,2- and 1,3-Group Migrations"

H. Hashimoto, A. Mastuda, H. Tobita

Chem. Lett. 2005, 1374-1375 (DOI: 10.1246 / cl.2005.1374).

"Synthesis of µ-Phosphido Diiron Complexes Having a PH bond: Hydrophosphination of Phenylacetylene and Methyl Acrylate with the Cationic µ-Phosphido Diiron Complex"

J. Sugiura, T. Kakizawa, H. Hashimoto, H. Tobita, H. Ogino

Organometallics 2005, 24, 1099-1104 (DOI: 10.1021 / om049000o).

2004

"Selective and Stepwise Bromodemethylation of the Silyl Ligand in Iron (II) Silyl Complexes with Boron Tribromide"

T. Watanabe, H. Hashimoto, H. Tobita

Organometallics 2004, 23, 4150-4153 (DOI: 10.1021 / om049762j).

"Reactions of a Phosphido-Bridged Unsymmetrical Diiron Complex (η5-C5Me5) Fe2 (CO) 4 (µ-CO) (µ-PPh2) with Various Alkynes"

H. Hashimoto, K. Kurashima, H. Tobita, H. Ogino

J. Organomet. Chem. 2004, 689, 1481-1495 (DOI: 10.1016 / j.jorganchem.2004.01.013).

"Synthesis and characterization of Triplet Germylene-Bridged Diiron Complexes and Singlet Stannylene-Bridged Diiron Complexes"

BAS Mohamed, M. Kikuchi, H. Hashimoto, K. Ueno, H. Tobita, H. Ogino

Chem. Lett. 2004, 112-113 (DOI: 10.1246 / cl.2004.112).

"Hydrido (hydrosilylene) tungsten Complex with a Strong Interaction between the Silylene and Hydrido Ligands "

T. Watanabe, H. Hashimoto, H. Tobita

Angew. Chem. Int. Ed. 2004, 43, 218-221 (DOI: 10.1002 / anie.200352383).

"Direct Evidence for Extremely Facile 1,2- and 1,3-Group-Migrations on an FeSi2 System"

H. Tobita, A. Matsuda, H. Hashimoto, K. Ueno, H. Ogino

Angew. Chem. Int. Ed. 2004, 43, 221-224 (DOI 10.1002 / anie.200352519).

Corrigendum: Angew. Chem. Int. Ed. 2004, 43, 3096.

"Iron Complexes of (E)-and (Z) -1,2-Dichlorodisilenes"

H. Hashimoto, K. Suzuki, W. Setaka, C. Kabuto, M. Kira

J. Am. Chem. Soc. 2004, 126, 13628-13629 (DOI: 10.1021 / ja048100i).

2003

"Comparison of Structures between Platinum and Palladium Complexes of a Tetrasilyl disilene"

H. Hashimoto, Y. Sekiguchi, Y. Sekiguchi, T. Iwamoto, C. Kabuto, M. Kira *

Can J. Chem. 2003, 81, 1241-1245 (DOI: 10.1139 / v03-108).

"Stoichiometric Hydrosilylation of Nitriles and Catalytic Hydrosilylation of Imines and Ketones Using a µ-Silane Diruthenium Complex"

H. Hashimoto, I. Aratani, C. Kabuto, M. Kira *

Organometallics 2003, 22, 2199-2201 (DOI: 10.1021 / om030219x).

"Synthesis, Structure, and Fluxional Behavior of 1,2,3,4-Tetramethylfulvene-Bridged Diruthenium Complexes"

H. Hashimoto, H. Tobita, H. Ogino *

Inorg. Chim. Acta. 2003, 350, 347-354 (DOI: 10.1016 / S0020-1693 (02) 01564-5 ).

2002

“Interconversion among µ-Silylene, µ-Silyl, and µ-Silane Diruthenium Complexes in the Presence of Dihydrosilane”

H. Hashimoto, Y. Hayashi, I. Aratani, C. Kabuto, M. Kira *

Organometallics 2002, 21, 1534-1536 (DOI: 10.1021 / om0109814).

"Synthesis and X-ray Structure of a Platinum η2-Disilene Complex"

H. Hashimoto, Y. Sekiguchi, T. Iwamoto, C. Kabuto, M. Kira *

Organometallics 2002, 21, 454-456 (DOI: 10.1021 / om010914 +).

"Metal-ion induced intramolecular charge-transfer fluorescence of p-pentamethyldisilanylacetophenone"

M. Kira * , R. Badugu, T. Li, W. Setaka, K. Sakamoto, H. Hashimoto

Chem. Lett. 2002, 31, 242-243 (DOI: 10.1246 / cl.2002.242 ).

2001

"Synthesis, characterization, and Photoreactions of 1,2-Disiladigermacyclobutane"

H. Hashimoto, Y. Yagihashi, L. Ignatovich, M. Kira *

Heteroatom Chem. 2001, 12, 398-405 (DOI: 10.1002 / hc.1060 ).

2000

"Substituent effects on catalytic synthesis and properties of poly (phenylsilane)"

H. Hashimoto, S. Obara, M. Kira *

Chem. Lett. 2000, 29, 188-189 (DOI: 10.1246 / cl.2000.188 ).

1998

"Persistent tris (t-butyldimethylsilyl) silyl radical and its new generation methods"

M. Kira *, T. Obata, I. Kon, H, Hashimoto, M. Ichinohe, H. Sakurai, S. Kyushin, H. Matsumoto

Chem. Lett. 1998, 27, 1097-1098 (DOI: 10.1246 / cl. 1998.1097).

"Cluster Expansion Reactions of Group 6 Metallaboranes. Syntheses, Crystal Structures, and Spectroscopic characterizations of (Cp * Cr) 2B5H9, (Cp * Cr) 2B4H8Fe (CO) 3, (Cp * Cr) 2B4H7Co (CO) 3, and (Cp) * Mo) 2B5H9Fe (CO) 3 "

S. Aldridge, H. Hashimoto, M. Shang, TP Fehlner

Inorg. Chem. 1998, 37, 928-940 (DOI: 10.1021 / ic971251k ).

"Cp * TaCl2B4H6: synthesis, crystal structure and spectroscopic characterization of an air stable, electronically displaced, chiral tantaloborane"

S. Aldridge, H. Hashimoto, M. Shang, TP Fehlner

J. Chem. Soc. Chem. Commun. 1998, 207-208 (DOI: 10.1039 / A706483G).

1996

"Clusters as Ligands. Coordination of an Electronically Unsaturated Chromaborane to an Iron Tricarbonyl Fragment"

H. Hashimoto, M. Shang, TP Fehlner

J. Am. Chem. Soc. 1996, 118, 8164-8165 (DOI: 10.1021 / ja9616387).

"Reactions of an Electronically Unsaturated Chromaborane. Coordination of CS2 to (η5-C5Me5) 2Cr2B4H8 and Its Hydroboration to a Methanedithiolato Ligand"

H. Hashimoto, M. Shang, TP Fehlner

Organometallics 1996, 15, 1963-1965 (DOI: 10.1021 / om960180e).

1995

"Redistribution Reactions of Hydrosilanes Mediated by the Unsymmetrical and Homometallic Phosphido-Bridged Complex (η5-C5Me5) Fe2 (CO) 4 (µ-CO) (µ-PPh2)"

H. Hashimoto, H. Tobita, H. Ogino *

J. Organomet. Chem. 1995, 499, 205-211 (DOI: 10.1016 / 0022-328X (95) 00301-6 ).

1994

"CC Bond Formation between (η1: η5-CH2C5Me4) Fe2 (CO) 6 and CS2 to Give the Triiron Complex {(η5-C5Me5) CH2CS2} Fe3 (CO) 8"

H. Hashimoto, H. Tobita, H. Ogino *

Organometallics 1994, 13, 1055-1057 (DOI: 10.1021 / om00016a003).

1993

"Synthesis of the 1,2,3,4-Tetramethylfulvene-Bridged Diiron Complex (η1: η5-CH2C5Me4) Fe2 (CO) 6 and Its Reactions with Phosphines"

H. Hashimoto, H. Tobita, H. Ogino *

Organometallics 1993, 12, 2182-2187 (DOI: 10.1021 / om00030a030).

Review • Books

2017

Evolution of Transition Metal-Silicon / Germanium Multiple Bond Complexes: From Double Bond Complexes to Triple Bond Complexes

Hisako Hashimoto

Journal of Silicon Chemistry, 2017, 34, 11-18.

2017

“Tungsten- and ruthenium-silylene complexes,”

H. Hashimoto

Chapter 21 in “Efficient Methods for Preparing Silicon Compounds,” ed by Herbert W. Roesky, Elsevier, 2016, Chap. 21, pp 261-267 (ISBN: 9780128035306).

2013

"Silicon transition metal complex"

Hiromi Tobita and Hisako Hashimoto

"Modern Silicon Chemistry: Toward Systematic Basic Concepts and Applications" edited by Mitsuo Kira and Kohei Tamao, Kagaku-Dojin, Chapter 14, 2013, 221-239.

2006

Synthesis, structure and reaction of transition metal complexes with unsaturated silicon ligands

Hisako Hashimoto

Journal of Silicon Chemistry, 2006, 23, 35-36.

2003

Hydrosilane σ complex

Hisako Hashimoto

Journal of Silicon Chemistry, 2003, 19, 39.

2003

Structure and reaction of silicon transition metal complex

Mitsuo Kira, Hisako Hashimoto

Organometallic News, 2002, 4, 126-129.

Commentary article

2008

Direct synthesis of amides by dehydrogenation from alcohols and amines

Hisako Hashimoto

Chemistry, 2008, 63 (3), 59-60. "Featured Papers"

2006

Hydrosilylation reaction catalyzed by a typical metal complex in the previous period

Hisako Hashimoto

Organometallic News, 2006, 3, 97.

2004

Approach to Transition Metal-Silicon Triple Bond Compounds

Hisako Hashimoto

Chemistry, 2004, 59, 66-67.

2002

Organosilicon compounds — connecting organic and inorganic

Hisako Hashimoto

Chemistry and Education, 2002, 50 (3), 186.