Topics and Pictures
“Synthesis of soluble star-shaped polymers via in and out approach by ring-opening metathesis polymerization (ROMP) of norbornene: Factors affecting the precise synthesis” Catalysts  (Open Access)


December, 2018 (C&FC2018, Bangkok)


“(Imido)vanadium-alkylidene complex catalysts for efficient ring-opening metathesis polymerization of cyclic olefins” Kobunshi Ronbunshu (Special issue, Accounts)


November, 2018 (IKCOC2018, Kyoto)


October-November, 2018: Visiting Université Libre de Bruxelles (ULB), University of Stuttgart, Technische Universität Braunschweig


“Facile in situ generation of highly active (arylimido)vanadium(V)-alkylidene catalysts for ring-opening metathesis polymerization (ROMP) of cyclic olefins by immediate phenoxy ligand exchange” Chem. Commun.!divAbstract


October, 2018 (HTPM-X, Beijing)


“Efficient conversion of renewable unsaturated fatty acid methyl esters by cross metathesis with eugenol” ACS Omega (Open Access)


September, 2018 (Hakodate)


Department of Chemistry, Thammasat University (Bangkok, Thailand, September, 2018)


“One-pot synthesis of end-functionalised soluble star-shaped polymers by living ring-opening metathesis polymerisation using molybdenum-alkylidene catalyst”
RSC Adv.!divAbstract (Open Access)


“Interaction between the end groups and the main chain of conjugated polymers by time-resolved EPR and fluorescence spectroscopy” Molecular Physics (special issue)


July, 2018 (GT2018, Beijing, China)


“(Arylimido)vanadium(V)-alkylidenes containing chlorinated phenoxy ligands: Thermally robust, highly active catalyst in ring-opening metathesis polymerization of cyclic olefins” Organometallics


“Synthesis of (arylmido)niobium(V) complexes containing ketimide, phenoxide ligands, and some reactions with phenols, alcohols”
ACS Omega (Open Access)


“Solution XAS analysis of various (imido)vanadium(V) dichloride complexes containing monodentate anionic ancillary donor ligands: Effect of aluminium cocatalyst in ethylene/norbornene (co)polymerization” J. Jpn. Petrol. Inst. (special issue, invited) (Open Access)


June, 2018 (PC2018, Changchun, China)


New laboratory picture (June, 2018)


“Terthiophene functionalized conjugated triarm polymers containing poly(fluorene-2,7-Vinylene) arms having different cores. Synthesis and their unique optical properties” ACS Omega (Open Access)


“Solution XAS analysis for exploring the active species in homogeneous vanadium complex catalysis” J. Phys. Soc. Jpn (Open Access)


“Noticeable chiral center dependence of signs and magnitudes in circular dichroism (CD) and circularly polarized luminescence (CPL) spectra of all-trans poly(9,9-dialkyl-fluorene-2,7-vinylene)s bearing chiral alkyl side chains in solution, aggregates, and in thin film”
Macromolecules  Here


“Olefin polymerization by vanadium complex catalysts”, Handbook of Transition Metal Polymerization Catalysts (2nd Ed.), Ray Hoff (Ed.), Wiley, 313-338 (2018)


February:  Our effort was introduced in Tutorial, “Activation of Carbon–Hydrogen Bonds via 1,2-RH-Addition/-Elimination to Early Transition Metal Imides (by Prof. P. T. Wolczanski)”
Organometallics  Here   1,2-C-H Bond activation of benzene by vanadium-alkylidene: here


January 30 (TMU): TMU and PetroMat Joint Mini Symposium on Catalysis and Advanced Materials 2018


“Ethylene copolymerization with 4-methylcyclohexene or 1-methylcyclopentene by half-titanocene catalysts: Effect of ligands and microstructural analysis of the copolymers” Macromolecules  http://doi: 10.1021/acs.macromol.7b02484


“Olefin metathesis polymerization: Some recent developments in the precise polymerizations for synthesis of advanced materials (by ROMP, ADMET)” Tetrahedron (report)


Hefei&Beijing (Hefei University of Technology, University of Science and Technology of China)


“Synthesis, structural analysis of (imido)vanadium dichloride complexes containing 2-(2’-benz-imidazolyl)pyridine ligands: Effect of Al cocatalyst for efficient ethylene (co)polymerization” ACS Omega


“Vanadium NMR chemical shifts of (imido)Vanadium(V) dichloride complexes with imidazolin-2-iminato and imidazolidin-2-iminato ligands: A cooperation with quantum-chemical calculations and multiple linear regression analyses” J. Phys. Chem. A


“Synthesis and reaction chemistry of alkylidene complexes with titanium, zirconium, vanadium, and niobium: Effective catalysts for olefin metathesis polymerization and the other organic transformations” Adv. Organomet. Chem


November-December, 2017 (ULB, Brussels)


October, 2017 (APO2017, Tianjin; ICCAS, Beijing)


Cis Specific chain transfer ring-opening metathesis polymerization using a vanadium(V)-alkylidene catalyst for efficient synthesis of end-functionalized polymers” Organometallics


September, 2017 (Hohhot, Inner Mongolia University)


“Effects of terthiophene as the end-groups in triblock copolymers consisting of poly(fluorene vinylene) and oligo(phenylene vinylene): Time-resolved fluorescence and its anisotropy” J. Photochem. Photobiol. A: Chem.


“Effect of Al cocatalyst in ethylene and ethylene/norbornene (Co)polymerization by (imido)vanadium dichloride complexes containing anionic N-heterocyclic carbenes having weakly coordinating borate moiety” J. Jpn. Petrol. Inst. (special issue, invited) (Open Access)


August-October, 2017 (Institute of Chemistry, Chinese Academy of Sciences, Beijing)


“Synthesis and structural analysis of palladium(II) complexes containing neutral or anionic C2-symmetric bis(oxazoline) ligands: Effects of substituents in the 5 position” ACS Omega (Open Access)


July, 2017 (Bangkok, Thailand)


July, 2017 (Beijing, China): Intensive lecture course in University of Chinese Academy of Sciences


“Facile, Efficient Synthesis of Star-Shaped π-Conjugated Systems by Combined Olefin Metathesis with Wittig-type Coupling”
J. Chin. Chem. Soc. (special issue, C&FC2016)


Highlight in Olefin Metathesis — Fundamentals and Frontiers: (imido)vanadium-akylidene catalyst
Virtual Issue, Organometallics  Here or Here


New laboratory picture (June, 2017)


“Ring opening metathesis polymerization of norbornene or tetracyclododecene with cyclooctene by using (arylmido)vanadium(V)-alkylidene catalyst”
J. Poly. Sci. PartA: Polymer Chem. (special issue for celebrating Prof. Grubbs 75th birthday)


“Synthesis of poly(arylene vinylene)s containing different end groups by combined acyclic diene metathesis polymerization with Wittig-type coupling” Angew. Chem. Int. Ed.
Our paper accepted in Angew. Chem. Int. Ed. was selected for backside cover (Highlight article)
Cover: page   Press Release:  Here (Japanese, JST)  ChemistryViews: Here


March, 2017: 119th Symposium on Catalysis Society of Japan at TMU (654 participants, Chairman)


3rd International Conference on Molecular and Functional Catalysis (ICMFC-3, Singapore, February 2017)


“Effects of end-groups on photophysical properties of poly(9,9-di-n-octyl-fluorene-2,7-vinylene)s linked with metalloporphyrins: Synthesis and time-resolved fluorescence spectroscopy”


February, 2017 (Bangkok, Thailand): Pure and Applied Chemistry International Conference 2017 (PACCON2017)
February, 2017 (Bangkok, Thailand): TMU and PetroMat Joint Mini Symposium on Catalysis and Advanced Materials 2017 (Chulalongkorn University); Thammasat University; Mahidol University.


“Synthesis of (adamantylimido)vanadium(V) dimethyl complex containing (2-anilidomethyl)pyridine ligand and selected reactions: Exploring the oxidation state of the catalytically active species in ethylene dimerization” Organometallics (Open Access)


“ADMET Polymerization: Greener method for synthesis of end-functionalized poly(arylene vinylene)s” Green and Sustainable Chemistry (Perspective, Mini review, Open Access)


“Synthesis of vanadium-alkylidene complexes and their use as catalysts for ring opening metathesis polymerization”  Perspective in Dalton Trans.!divAbstract  Cover


10th International Symposium on Catalysis and Fine Chemicals 2016 (C&FC2016, Taipei, November 2016)

International Vanadium Symposium: Chemistry, Biological Chemistry, & Toxicology (V10, Taipei, November 2016)

National Taiwan University of Science and Technology (Taipei)



“Design of efficient molecular catalysts for synthesis of cyclic olefin copolymers (COC) by copolymerization of ethylene, α-olefins with norbornene, tetracyclododecene”  Mini Review in Catalysts


“Cross metathesis of methyl oleate (MO) with terminal, internal olefins by ruthenium catalysts: Factors affecting the efficient MO conversion and the selectivity” Joint Research with UKM (Malaysia)  RSC Advances


August, 2017: University of Science and Technology of China (Hefei, China); Donghua University (Shanghai, China); Shanghai Institute of Organic Chemistry (SIOC), Chinese Academy of Sciences (Shanghai, China); East China University of Science and Technology (Shanghai, China)


“Ring-opening metathesis polymerization of cyclic olefins by (arylimido)vanadium(V)-alkylidenes: Highly active, thermally robust cis specific polymerization” J. Am. Chem. Soc.


“Synthesis of (imido)niobium(V)-alkylidene complexes that exhibit high catalytic activities for metathesis polymerization of cyclic olefins and internal alkynes” Organometallics (Commun.)


International Symposium on Pure and Applied Chemistry 2016 (ISPAC2016, Kuching, Sarawak, Malaysia, August, 2016).


“Synthesis and structural analysis of niobium(V) complexes containing amine triphenolate ligands of the type, [NbCl(X)(O-2,4-R2C6H2-6-CH2)3N] (R = Me, tBu; X = Cl, CF3SO3), and their use in catalysis for ethylene polymerization” Polyhedron (Special issue, Tridentate and tetradentate tripodal ligands, invited submission)


HTPM-9 symposium (Zengzhou, China, July 2016)



PERCH-CIC Congress IX (Pattaya, Thailand, June 2016)


New laboratory picture (June, 2016)

Lab for web 0616


“One-pot synthesis of end-functionalized conjugated polymers by combined acyclic diene metathesis (ADMET) polymerization with Wittig-type coupling” J. Jpn. Petrol. Inst. (Invited submission, special issue).


“Efficient norbornene (NBE) incorporation in ethylene/NBE copolymerization by half-titanocene catalysts containing chlorinated aryloxo ligands” Organometallics


“Synthesis of (imido)vanadium(V) dichloride complexes containing anionic N-heterocyclic carbenes that contain a weakly coordinating borate moiety: New MAO-free ethylene polymerization catalysts,” Organometallics   Most Read Article Igarashi OM No3


“Efficient synthesis of cyclic olefin copolymers with high glass transition temperatures by ethylene copolymerization with tetracyclododecene (TCD) using (tert-BuC5H4)TiCl2(N=CtBu2) – MAO catalyst,” J. Polym. Sci. Part A: Polym. Chem. (cover).  Cover


“Synthesis and Structural Analysis of Zr–Al Heterobimetallic Complexes, [ZrX{(O-2,4-tBu2C6H2-6-CH2)3(μ2-O-2,4-tBu2-C6H2-6-CH2)}N][R2Al(μ2-OiPr)] [X = Cl, Et, iBu; R = Me, Et, iBu]. Unique Reactivity of the iBu Complex,” Organometallics


“Efficient introduction of aromatic vinyl group by incorporation of divinylbiphenyl, p-divinylbenzene in syndiospecific styrene polymerization using aryloxo-modified half-titanocene catalysts,” J. Polym. Sci. Part A: Polym. Chem. (cover)  Cover


“Synthesis of ultrahigh molecular weight polymers by homopolymerisation of higher α-olefins catalysed by aryloxo-modified half-titanocenes,” RSC Advances!divAbstract


PACCON2016 (Bangkok, February 2016)



“Catalytic one-pot synthesis of end-functionalized poly(9,9’-di-n-octyl-fluorene vinylene)s by acyclic diene metathesis (ADMET) polymerization using ruthenium-carbene catalysts” Macromolecules

“Copolymerizations of norbornene, tetracyclododecene with α-olefins by half-titanocene catalysts: Efficient synthesis of highly transparent, thermal resistance polymers,” Macromolecules


Pacifichem 2015 (Hawaii, U.S.A., December 2015)



8th AUN/SEED-Net Regional Conference on Chemical Engineering, Chemical Innovation for a Progress in ASEAN Industry and Society (Hanoi, November 2015)



Asian Polyolefin Workshop 2015 (APO2015, Tokyo Metropolitan University, November 2015)



Tsinghua University and Renmin University of China (Beijing, China, October 2015)


ACS Advances in Polyolefins 2015 (Santa Rosa, CA, USA, September 2015)

Santa Rosa


“Time-resolved fluorescence spectra in the end-functionalized conjugated triblock copolymers consisting of poly(fluorene vinylene) and oligo(phenylene vinylene): Proposal of dynamical distortion in the excited state,” Macromolecules


250th ACS National Meeting (Boston, U.S.A., August 2015)

ACS Boston


“Synthesis of well-defined oligo(2,5-dialkoxy-1,4-phenylene vinylene)s with chiral end groups: Unique helical aggregations induced by the chiral chain ends,” Chem. Eur. J. Commun


Department of Chemistry, Thammasat University (Bangkok, Thailand, August 2015)

TU 0815


Backside cover, Dalton Trans., 44(38), 16728–16736 (2015).  DOI: 10.1039/C5DT02726H

“Synthesis and structural analysis of tungsten-carbonyl dimers bridged with oligo(2,5-dialkoxy-1,4-phenylene vinylene)s through pyridine coordination,” Dalton Trans


21th International Symposium on Olefin Metathesis and Related Chemistry (ISOM XXI), (Graz, Austria, July 2015).



“Synthesis of half-titanocenes containing 1,3-imidazolidin-2-iminato ligands of type, Cp*TiCl2[1,3-R2(CH2N)2C=N]: Highly active catalyst precursors in ethylene (co)polymerisation,” RSC Advances!divAbstract

“Synthesis of titanium complexes containing amine triphenolate ligand of the type, [TiX{(O-2,4-R2C6H2)-6-CH2}3N], and the Ti-Al hetero-bimetallic complexes with AlMe3: Effect of terminal donor ligand in ethylene polymerization,” Organometallics

“(Arylimido)vanadium(V)-alkylidene complexes containing fluorinated aryloxo, alkoxo ligands for fast living ring-opening metathesis polymerization (ROMP), Highly cis-specific ROMP,” J. Am. Chem. Soc.