Trifluoromethanesulfonate (triflate) as a moderately coordinating anion: Studies from chemistry of the cationic coordinatively unsaturated mono- and diruthenium amidinates
Hayashida, T; Kondo, H; Terasawa, J; Kirchner, K; Sunada, Y; Nagashima, H
Journal of Organometallic Chemistry 2007, 692, 382-394


Titanium(IV) phosphinoamide as a unique bidentate ligand for late transition metals II: TiRu heterobimetallics bearing a bridging chlorine atom.
Sunada, Y; Sue, T; Matsumoto, T.; Nagashima, H
Journal of Organometallic Chemistry 2006, 691, 3176-3182

Dynamic Titanium Phosphinoamides as Unique Bidentate Phosphorus Ligands for Platinum
Nagashima, H; Sue, T; Oda, T; Kanemitsu, A; Matsumoto, T; Motoyama, Y; Sunada, Y
Organometallics 2006, 25, 1987-1994

A coordinatively unsaturated ruthenium methoxide as a highly effective catalyst for the halogen atom-transfer radical cyclization of N-allyl dichloroacetamides and related reactions
Motoyama, Y; Hanada, S; Shimamoto, K; Nagashima, H
Tetrahedron 2006, 62(12), 2779-2788

Dual Si-H effects in platinum-catalyzed silane reduction of carboxamides leading to a practical synthetic process of tertiary amines involving self-encapsulation of the catalyst species into the insoluble silicone resin formed
Hanada, S; Motoyama, Y; Nagashima, H
Tetrahedron Letters 2006, 47(35), 6173-6177

Highly-dispersed and size-controlled ruthenium nanoparticles on carbon nanofibers: preparation, characterization, and catalysis.
Motoyama, Y; Takasaki, M; Higashi, K; Yoon, S. -H; Mochida, I; Nagashima, H
Chemistry Letters 2006, 35(8), 876-877


Atom-transfer radical reactions catalyzed by a coordinatively unsaturated diruthenium amidinate, [(η5-C5Me5)Ru(η2-i-PrNC(Me)Ni-Pr)Ru(η5-C5Me5)]+.
Motoyama, Y.; Hanada, S.; Niibayashi, S.; Shimamoto, K.; Takaoka, N.; Nagashima, H
Tetrahedron 2005, 61, 10216-10226

Self-Encapsulation of Homogeneous Catalyst Species into Polymer Gel Leading to a Facile and Efficient Separation System of Amine Products in the Ru-Catalyzed Reduction of Carboxamides with Polymethylhydrosiloxane (PMHS).
Motoyama, Y.; Mitsui, K.; Ishida, T.; Nagashima, H.
J. Am. Chem. Soc.2005, 127, 13150-13151

Crystal Structures of n-Alkanes with Branches of Different Size in the Middle
Ikedou, K.; Yamamoto, Y.; Nagashima, H.; Nemoto, N.
J. Phys. Chem. B 2005, 109, 10668-10675.

“Unsymmetrical” Diruthenium Amidinates, in which the μ2-Amidinate Bridge is Perpendicular to the Ru-Ru Axis: Synthesis and Reactions of Derivatives of [(η5-C5Me5)Ru(m-amidinate)Ruη5-C5H5)]+
Terasawa,J.; Kondo,H.; Matsumoto,T.; Kirchner,K.; Motoyama,Y.; Nagashima,H
Organometallics 2005, 24, 2713-2721

Monometallic and heterobimetallic azanickellacycles as ethylene polymerization catalysts
Tanabiki, M.; Tsuchiya, K.; Motoyama, Y.; Nagashima, H.
Chemical Communications 2005, 3409-3411.

有機合成化学協会誌、 2005 Vol. 63, pp. 122-133

The Effect of Titanium Alkoxides in the Synthesis of Heterobimetallic Complexes by Titanocene(III) Alkoxide-Induced Metal-Metal Bond Cleavage of Metal Carbonyl Dimers
Niibayashi,S.; Mitsui,K.; Motoyama,Y.; Nagashima,H.
Journal of Organometallic Chemistry 2005, 690, 276-285.


Silane-Induced Polymerization of Vinyl Ethers Catalyzed by a Triruthenium Carbonyl Cluster, (μ3-, η2-, η3-, η5--Acenaphthylene)Ru3(CO)7
Nagashima,H.; Itonaga,C.; Yasuhara,J.; Motoyama,Y.; Matsubara.K Organometallics 2004, 23, 5779-5786.

Ni(II) Isocyanide Complexes as Ethylene Polymerization Catalysts.
Tanabiki,M.; Tsuchiya,K.; Kumanomido,Y.; Matsubara,K.; Motoyama,Y.; Nagashima,H. Organometallics 2004, 23, 3976-3981.

A Cationic Diruthenium Amidinate, [(η5-C5Me5)Ru(μ2-i-PrN=C(Me)Ni-Pr)Ru(η5-C5Me5)]+, as an Efficient Catalyst for the Atom-Transfer Radical Reactions.
Motoyama, Y.; Gondo, M.; Masuda, S.; Iwashita, Y.; Nagashima, H.
Chemistry Letters 2004, 33, 442-443.

Thermally Reversible Photochemical Haptotropic Rearrangement of Diiron Carbonyl Complexes Bearing a Bridging Acenaphthylene or Aceanthrylene Ligand.
Niibayashi, S.; Matsubara, K.; Haga, M.; Nagashima, H.
Organometallics 2004, 23, 635-646.

Novel Titanium-Cobalt Complexes Formed by Reductive Cleavage of a Co-Co Bond in Co2(CO)8 by Titanocene tert-Butoxides: Synthesis, Characterization, and Mechanistic Aspects for Metal-Metal Bond Recombination. Niibayashi, S.; Mitsui, K.; Matsubara, K.; Nagashima, H.
Organometallics 2003, 22, 4885-4892.

Thermally or Photochemically Induced Reductive Cleavage of Metal-Metal Bonds of Metal Carbonyl Dimers by a Titanocene(III) tert-Butoxide: Novel Reversible Access to Heterobimetallic Complexes. Matsubara, K.; Niibayashi, S.; Nagashima, H.
Organometallics 2003, 22, 1376-1382.

Organoruthenium(II) and (III) Amidinates, (η5-C5Me5)Ru(η-amidinate) and (η5-C5Me5)RuCl(η-amidinate), as Unique Redox Catalysts for the Intramolecular Kharasch Reactions: Facile Access to a Pyrrolizidine Alkaloid Skeleton under Mild Conditions.
Nagashima, H.; Gondo, M.; Masuda, S.; Kondo, H.; Yamaguchi, Y.; Matsubara, K.
Chemical Communications 2003, 442-443.


Silane-Induced Ring-Opening Polymerization of 1,1,3,3-Tetramethyl-2-Oxa-1,3-Disilacyclopentane Catalyzed by a Triruthenium Cluster.
Matsubara, K.; Terasawa, J.-I.; Nagashima, H.
Journal of Organometallic Chemistry 2002, 660, 145-152.

Access to Novel Ruthenium-Amidinate Complexes, (η6-arene)Ru(η2-amidinate)X and [Ru(η2-amidinate)(MeCN)4]+PF6- by Photochemical Displacement of the Benzene Ligand in (η6-C6H6)Ru(η2-amidinate)X.
Hayashida, T.; Nagashima, H.
Organometallics 2002, 21, 3884-3888.

Oxidative Addition of H-SiR3 to Di- and Triruthenium Carbonyl Complexes Bearing a Bridging Azulene Ligand: Isolation of New Silylruthenium Complexes and Catalytic Hydrosilylation of Ketones.
Matsubara, K.; Ryu, K.; Maki, T.; Iura, T.; Nagashima, H.
Organometallics 2002, 21, 3023-3032.

A Triruthenium Carbonyl Cluster Bearing a Bridging Acenaphthylene Ligand: An Efficient Catalyst for Reduction of Esters, Carboxylic Acids, and Amides by Trialkylsilanes.
Matsubara, K.; Iura, T.; Maki, T.; Nagashima, H.
Journal of Organic Chemistry 2002, 67, 4985-4988.

Preparation, Structures, and Haptotropic Rearrangement of Novel Dinuclear Ruthenium Complexes, (μ2,η3:η5-guaiazulene)Ru2(CO)4(CNR).
Matsubara, K.; Mima, S.; Oda, T.; Nagashima, H.
Journal of Organometallic Chemistry 2002, 650, 96-107.

"Bidentate" and "Tridentate" Sulfonamide Ligands for Titanium Complexes: Crystal Structures and Solution Dynamics Elucidating an η2 or η3-Coordination Mode.
Hamura, S.; Oda, T.; Shimizu, Y.; Matsubara, K.; Nagashima, H.
Journal of the Chemical Society, Dalton Transactions 2002, 1521-1527.

Novel Coordinatively Unsaturated Bimetallic Complexes, [(η5-C5Me5)Ru(μ2-iPrNC(Me):NiPr)Ru(η5-C5Me5)]+: A Bridging Amidinate Ligand Perpendicular to the Metal-Metal Axis Effectively Stabilizes the Highly Reactive Cationic Diruthenium Species.
Kondo, H.; Matsubara, K.; Nagashima, H.
Journal of the American Chemical Society 2002, 124, 534-535.

Ruthenium Amidinato-Carbene Complexes Containing a Ru-Si Bond: Formation and Reversible a-Silyl Group Migration from the Metal to the Carbene Ligand.
Hayashida, T.; Nagashima, H.
Organometallics 2001, 20, 4996-4998.


Oxidative Addition of Allylic Substrates to Coordinatively Unsaturated Ruthenium Compounds, [Ru(η5-C5Me5)(η-amidinate)]: Preparation, Structure Elucidation, and Catalysis of Novel Ruthenium (IV)-η3-Allyl Complexes.
Kondo, H.; Kageyama, A.; Yamaguchi, Y.; Haga, M.-A.; Kirchner, K.; Nagashima, H.
Bulletin of the Chemical Society of Japan 2001, 74, 1927-1937.

Isolable yet Highly Reactive Cationic Organoruthenium(II) Amidinates, [Ru(η6-C6R6)(η-amidinate)]+X-, Showing Signs of Coordinative Unsaturation: Isoelectronic Complexes of Ru(η5-C5Me5)(η-amidinate).
Hayashida, T.; Yamaguchi, Y.; Kirchner, K.; Nagashima, H.
Chemistry Letters 2001, 954-955.

Diruthenium Carbonyl Complexes Bound to Guaiazulene: Preparation and Thermally Reversible Photoisomerization Studies of Phosphine and Phosphite Derivatives of (μ2,η3:η5-guaiazulene)Ru2(CO)5 and Iron Homologs.
Matsubara, K.; Oda, T.; Nagashima, H.
Organometallics 2001, 20, 881-892.

(η5-C5Me5)Ru(μ2-iPrN:C(Me)NiPr)Ru(X)(η5-C5Me5): An Unusual Bonding Mode of μ2-Amidinate Ligand Providing the First Unequivocal Evidence for Coordinating Ability of π-Conjugate Electrons of the Amidinate Ligands to Transition Metals.
Kondo, H.; Yamaguchi, Y.; Nagashima, H.
Journal of the American Chemical Society 2001, 123, 500-501.

Copper-Catalyzed Cyclization of N-Allylhalodifluoroacetamides: An Efficient Synthesis of α,α-Difluorinated γ-Lactams.
Nagashima, H.; Isono, Y.; Iwamatsu, S.-I.
ournal of Organic Chemistry 2001, 66, 315-319.


Stoichiometric and Catalytic Activation of Si-H Bonds by a Triruthenium Carbonyl Cluster, (μ3,η2:η3:η5-acenaphthylene)Ru3(CO)7: Isolation of the Oxidative Adducts, Catalytic Hydrosilylation of Aldehydes, Ketones, and Acetals, and Catalytic Polymerization of Cyclic Ethers.
Nagashima, H.; Suzuki, A.; Iura, T.; Ryu, K.; Matsubara, K.
Organometallics 2000, 19, 3579-3590.

The First Organoruthenium(IV) Complexes Containing Nitrogen Donor Ligands by Oxidative Addition of Allylic Substrates to Coordinatively Unsaturated Ru(II) Complexes.
Kondo, H.; Yamaguchi, Y.; Nagashima, H.
Chemical Communications 2000, 1075-1076.

(η5-C5Me5)Ru(amidinate): Highly Reactive Ruthenium Complexes Formally Bearing 16 Valence Electrons Showing Signs of Coordinative Unsaturation.
Yamaguchi, Y.; Nagashima, H.
Organometallics 2000, 19, 725-727.