Kotaro Fujii
Assistant Professor
School of Chemistry
Tokyo Institute of Technology
Publications
2012
Mechanism of Dehydration–Hydration Processes of Lisinopril Dihydrate Investigated by ab Initio Powder X-ray Diffraction Analysis
Cocrystallization and amorphization induced by drug–excipient interaction improves the physical properties of acyclovir
Guest-induced self-assembly of a macrocyclic boronic ester containing diarylethene units: enhancement of photoresponsivity
2011
Structure Determination from Powder X-ray Diffraction Data of a New Polymorph of
a High-Density Organic Hydrate Material, with an Assessment of Hydrogen-Bond
Disorder by Rietveld Refinement
Reversible Color Switching of an Organic Crystal Induced by Organic Solvent Vapors
連載企画 有機粉末構造解析をはじめよう! 「試料準備から測定まで」
連載企画 有機粉末構造解析をはじめよう! 「粉末未知結晶構造解析の紹介」
Cooperativity in Solid-State Squaramides
Supramolecular Networks in Crystalline Inclusion Complexes Formed
from a New Host: 2,2-Bis(4-hydroxy-3-phenylphenyl)-1H-indene-1,3(2H)-dione
Structural Chemistry of a New Chiral Anhydrous Phase of Ru(bipy)3(ClO4)
2 Established from Powder X-ray Diffraction Analysis
Potential of synchrotron X-ray powder diffractometry for detection
and quantification of small amounts of crystalline drug substances in pharmaceutical tablets
Exploiting powder X-ray diffraction for direct structure determination in
structural biology: The P2X4 receptor trafficking motif YEQGL
Metastable polymorphic form of isopropylbenzophenone derivative directly obtained
by the solid-state photoreaction investigated by ab initio powder X-ray diffraction analysis
粉末結晶解析を用いた溶媒蒸気による多形転移現象の解析
化学工業, 64(4), 262-268 (2011).
In situ observation and mechanistic elucidation of metastable colored species
in crystalline state photochromism of trans-biindenylidenedione
Study of the Pseudo-Crystalline Transformation from Form I to Form II of
Thiamine Hydrochloride (Vitamin B1)
2010
Cocrystalline phase transformation of binary mixture of trimethoprim and
sulfamethoxazole by slurry technique
Asian Journal of Pharmaceutical and Clinical Research, 3(4), 26-29 (2010).
Direct structure elucidation by powder X-ray diffraction of a metal–organic framework
material prepared by solvent-free grinding
Potassium clavulanate
Acta Cryst., E66(8), m985-m986 (2010).
Arrays of P═O Dipoles As a Recurrent Structural Motif in Bis-Diphenylphosphine Oxides,
Established from Powder X-ray Diffraction
A Solid-State Dehydration Process in an Organic Material Associated with Substantial
Hydrogen-Bond Reorganization, Investigated by Powder X-ray Diffraction
Selective transformation pathways between crystalline forms of an organic material
established from powder X-ray diffraction analysis
Chem. Commun., 46(24), 4264-4266 (2010).
Hexaradialenes by Successive Ring Openings of Tris(alkoxytricyclobutabenzenes):
Synthesis and Characterization
Angew. Chem. Int. Ed., 49(1), 3026-3029 (2010).
Physicochemical Understanding of Polymorphism and Solid-State Dehydration/Rehydration Processes
for the Pharmaceutical Material Acrinol, by Ab Initio Powder X-ray
Diffraction Analysis and Other Techniques
J. Phys. Chem. C, 114(1), 580-586 (2010).
2009
Partial ferromagnetic ordering and indirect exchange interaction in the spatially
anisotropic kagome antiferromagnet Cs2Cu3CeF12
Phys. Rev. B, 80(10), 100406/1-100406/4 (2009).
Dihydrochalcone Designed from Methylophiopogonanone B Strongly Inhibits
Hypoxia-inducible Factor (HIF)-1α Activity
Heterocycles, 78(8), 2061-2065 (2009).
Magnetic susceptibilities in a family of S = 1/2 kagome antiferromagnets
Phys. Rev. B, 79(17), 174407/1-174407/11 (2009).
Chiral Tetraazamacrocycles Having Four Pendant-Arms
Org. Lett., 11(11), 2289-2292 (2009).
Performance of the micro-PIC gaseous area detector in small-angle X-ray scattering experiments.
J. Synch. Rad., 16(2), 231-236 (2009).
Reevaluation of solubility of tolbutamide and polymorphic transformation from Form I
to unknown crystal form
Int. J. Pharm., 369(1-2), 12-18 (2009).
Vapor Induced Crystalline Transformation Investigated by ab initio Powder X-ray Diffraction Analysis.
Cryst. Growth & Des., 9(2), 1201-1207 (2009).
2008
粉末X線結晶構造解析で解明する5-メチル-2-ピリドン共結晶の光反応性と転移現象
日本結晶学会誌, 50(6), 335-340 (2008)
Singlet ground state and spin gap in S = 1/2 Kagome antiferromagnet Rb2Cu3SnF12.
J. Phys. Soc. Jpn., 77(4), 043707/1-043707/4 (2008).
Single-crystal-to-single-crystal photocyclization of 4-(2,4,6-triisopropylbenzoyl)benzoic
acid in the salt crystal with (S)-phenylethylamine.
Tetrahedron Lett., 49(28), 4346-4348 (2008).
2007
粉末X線回折データを用いる有機化合物の結晶構造解析
有機合成化学協会誌, 65(12), 1203-1212 (2007).
2006
Multiple pentafluorophenylation of 2,2,3,3,5,6,6-heptafluoro-3,6-dihydro-2H-1,4-oxazine
with an organosilicon reagent: NMR and DFT structural analysis of oligo(perfluoroaryl) compounds.
Helv. Chim. Acta, 89(11), 2671-2685, (2006).
Solid-state phase transition of an inclusion complex of 5-methyl-2-pyridone
with 1,3,5-benzenetricarboxylic acid.
Angew. Chem. Int. Ed., 45(36), 6013-6016, (2006).