研究者詳細 - 北村　千寿

論文 - 北村　千寿

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1,4,7,10-Tetraisoalkyltetracenes: Tuning of Solid-state Optical Properties and Fluorescence Quantum Yields by Peripheral Modulation 査読

1,4,7,10-Tetraisoalkyltetracenes: Tuning of Solid-state Optical Properties and Fluorescence Quantum Yields by Peripheral Modulation

European Journal of Organic Chemistry 3033 - 3040 2010年6月

Synthesis, Optical Properties, and Crystal Structure of 1,4-Dipropyltetracene 査読

Chitoshi Kitamura, Chika Matsumoto, Akio Yoneda, Takashi Kobayashi, Hiroyoshi Naito, Toshiki Komatsu

European Journal of Organic Chemistry 　 2571 - 2575 2010年5月

Pentaleno[1,2-c:4,5-c']dithiophene Derivatives: First Synthesis, Properties, and a Molecular Structure 査読

Akihito Konishi, Takeru Fujiwara, Noriko Ogawa, Yasukazu Hirao, Kouzou Matsumoto, Hiroyuki Kurata, Takashi Kubo, Chitoshi Kitamura, Takeshi Kawase

Chemistry Letters 39 300 - 301 2010年3月

Synthesis and Crystallochromy of 1,4,7,10-Tetraalkyltetracenes: Tuning of Solid-state Optical Properties of Tetracenes by Alkyl Side-chain Length 査読

Chitoshi Kitamura, Yasushi Abe, Takuya Ohara, Akio Yoneda, Takeshi Kawase, Takashi Kobayashi, Hiroyoshi Naito, Toshiki Komatsu

Chemistry A European Journal 16 890 - 898 2010年1月

Crystal Structure of anti-1,4,5,8-Tetra-t-butyl-2,3,6,7-tetrahydro-1,4:5,8-diepoxyanthracene 査読

Chitoshi Kitamura, Hideki Tsukuda, Takeshi Kawase

X-ray Structure Analysis Online 25 105 - 106 2009年10月

Preparation, Crystal Structure, and Solid-state Fluorescence of a CH₂Cl₂-Solvated Crystal of 6,13-Bis(t-butylphenyl)-2,3,9,10-tetrapropoxypentacene 査読

Chitoshi Kitamura, Takao Naito, Akio Yoneda, Takashi Kobayashi, Hiroyoshi Naito, Toshiki Komatsu

Chemistry Letters 38 600 - 601 2009年7月

Characterization of alkylphenol degradation gene cluster in Pseudomonas putida MT4 and evidence of oxidation of alkylphenols and alkylcatechols with medium-length alkyl chain 査読

Masahiro Takeo, Subbuswamy K. Prabu, Chitoshi Kitamura, Makoto Hirai, Hana Takahashi, Dai-ichiro Kato, Seiji Negoro

JOURNAL OF BIOSCIENCE AND BIOENGINEERING 102 ( 4 ) 352 - 361 2006年10月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：SOC BIOSCIENCE BIOENGINEERING JAPAN

Alkylphenols (APs) are ubiquitous contaminants in aquatic environments and have endocrine disrupting and toxic effects on aquatic organisms. To investigate biodegradation mechanisms of APs, an AP degradation gene cluster was cloned from a butylphenol (BP)-degrading bacterium, Pseudomonas putida MT4. The gene cluster consisted of 13 genes named bupBA1A2A3A4A5A6CEH1FG From the nucleotide sequences, bupA1A2A3A4A5A6 were predicted to encode a multicomponent phenol hydroxylase (PH), whereas bupBCEHIFG were expected to encode meta-cleavage pathway enzymes. A partial sequence of a putative NtrC-type regulatory gene, bupR, was also found upstream of the gene bupB. This result indicates that APs can be initially oxidized into alkylcatechols (ACs), followed by the meta-cleavage of the aromatic rings. To confirm this pathway, AP degradation tests were carried out using the recombinant P putida KT2440 harboring the PH genes (bupA1A2A3A4A5A6). The recombinant strain oxidized 4-n-APs with an alkyl chain of up to C7 (<= C7) efficiently and also several BPs including those with an alkyl chain with some degree of branching. Therefore, it was found that PH had a broad substrate specificity for APs with a medium-length alkyl chain (C3-C7). Moreover, the cell extract of a recombinant Escherichia coli harboring bupB (a catechol 2,3-dioxygenase gene) converted 4-n-ACs with an alkyl chain of <= C9 into yellow meta-cleavage products with a maximum absorbance at 379 nm, indicating that the second step enzyme in this pathway is also responsible for the degradation of ACs with a medium-length alkyl chain. These results suggest that MT4 is a very useful strain in the biodegradation of a wide range of APs with a medium-length alkyl chain, which known nonylphenol-degrading Sphingomonas strains have never degraded.

DOI： 10.1263/jbb.102.352

Web of Science

Efficient synthesis and crystal structure of new 1,4-ansa-anthraquinone 査読

Chitoshi Kitamura, Jun Fujimoto, Nobuhiro Kawatsuki, Akio Yoneda

HETEROCYCLES 68 ( 10 ) 2171 - + 2006年10月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：PERGAMON-ELSEVIER SCIENCE LTD

An ansa-anthraquinone with decamethylene-dioxa spacer was prepared by two-step or direct cyclization. The solid state structure was characterized by single crystal X-Ray diffraction analysis.

DOI： 10.3987/COM-06-10840

Web of Science

Photoinduced orientation in photo-cross-linkable liquid crystalline polymer film containing tolane moiety

N Kawatsuki, Y Fujii, C Kitamura, A Yoneda

CHEMISTRY LETTERS 35 ( 1 ) 52 - 53 2006年1月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：CHEMICAL SOC JAPAN

Photoinduced orientation of a new photo-cross-linkable liquid crystalline polymer film comprising a 4-methoxycinnamoyloxy group connected with a tolane moiety (PMCT6M) is presented. High molecular reorientation order with a biref"ringence value of 0.27 is achieved by exposing the film to linearly polarized ultraviolet light and subsequent annealing. The required degree of the photoreaction for the effective reorientation is 2-5 mol%. Small amount of photo-cross-linked mesogenic groups controls the thermal enhancement of the molecular reorientation.

DOI： 10.1246/cl.2006.52

Web of Science

Crystal structure of another polymorph of 1,4-anthraquinone 査読

Chitoshi Kitamura, Nobuhiro Kawatsuki, Akio Yoneda

Analytical Sciences: X-ray Structure Analysis Online 22 ( 12 ) x293 - x294 2006年

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Japan Society for Analytical Chemistry

The crystal structure of another polymorph of 1,4-anthraquinone was determined. The compound crystallizes in monoclinic, space group P21/n with a = 7.301(1), b = 9.674(2), c = 13.831(2)Å, β = 93.175(8)Å, V = 975.5(3)Å3, Z = 4. There is antiparallel π-π stacking between aromatic rings. The packing arrangement is different from another crystal structure for 1,4-anthraquinone (space group P21/b with a = 8.430(1), b = 19.846(2), c = 5.927(1)Å, γ = 100.21(2)°, CCDC code: COBBIE04). 2006 © The Japan Society for Analytical Chemistry.

DOI： 10.2116/analscix.22.x293

Scopus

Crystal structure of 5,12-diphenyltetracene 査読

Chitoshi Kitamura, Chika Matsumoto, Nobuhiro Kawatsuki, Akio Yoneda, Takashi Kobayashi, Hiroyoshi Naito

Analytical Sciences: X-ray Structure Analysis Online 22 ( 1 ) x5 - x6 2006年

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Japan Society for Analytical Chemistry

The crystal structure of 5,12-diphenyltetracene was determined. The compound crystallizes in triclinic form, space group P 1 with a = 8.936(3), b = 11.527(4), c = 11.643(5)Å, α = 112.84(2), β = 107.24(2)o, γ = 64.41(2)o, V = 984.8(6)Å3, Z = 2. The tetracene backbone is not planar but takes a some what twisted conformation. There is π-π stacking between the tetracene moieties. 2006 © The Japan Society for Analytical Chemistry.

DOI： 10.2116/analscix.22.x5

Scopus

Synthesis and Photoinduced Alignment of Photo-cross-linkable Copolymer Liquid Crystals Containing Tolane Side Groups 査読

Yuki Kitani, Chitoshi Kitamura, Akio Yoneda, Nobuhiro Kawatsuki

Mol. Cryst. Liq. Cryst. 443 181 - 189 2005年

Crystal Structure of (1,3-Butadiyne-1,4-diyl)-4,4’-bis[7-(3-n-hexyl-2-thienyl)ethynyl-2,1,3-benzothiadiazole] 査読

Chitoshi Kitamura, Kakuya Saito, Nobuhiro Kawatsuki, Akio Yoneda, Yoshiro Yamashita

Anal. Sci. 21 ( 10 ) x155 - x156 2005年

Syntheses and Cation-Binding Abilities of Thiacalix[4]arene Derivative 査読

Mikio Ouchi, Tetsuji Mizuno, Tomoyuki Maeda, Nobuhide Ebashi, Chitoshi Kitamura, Akio Yoneda, Mauro Mocerino

Dev. Chem. Eng. Mineral Process. 11 529 - 538 2003年

Crystal Structure of 1,4-Dimethoxyanthracene 査読

Chitoshi Kitamura, Jun Fujimoto, Mikio Ouchi, Akio Yoneda

Anal. Sci. 19 X69 - X70 2003年

Optical control of Magnetic Order in Molecule-based Magnet Mn(TCNE)x•y(CH2Cl2) 査読

Dusan A. Pejakovic, Chitoshi. Kitamura, Joel S. Miller, Arthur J. Epstein

J. Appl. Phys. 91 ( 10 ) 7176 - 7178 2002年5月

Photoinduced Magnetization in the Organic-Based Magnet Mn(TCNE)x• y(CH2Cl2) 査読

Dusan A. Pejakovic, Chitoshi Kitamura, Joel S. Miller, Arthur J. Epstein

Phys. Rev. Lett. 88 ( 5 ) 57202 2002年2月

Synthesis and Crystal Structure of 4,7-Bis(2-thienylethynyl)-2,1,3-benzothiadiazole 査読

Chitoshi Kitamura, Kakuya Saito, Mikio Ouchi, Akio Yoneda, Yoshiro Yamashita

J. Chem. Res. (S) 511 - 513 2002年

C-ドナー原子を持つ2-置換-8-キノリノールのパラジウム(II)および白金(II)シクロメタラト錯体の合成と錯体の配位子間立体相互作用査読

大淵真一, 北村千寿, George R. Newkome, 米田昭夫

日本化学会誌 ( 2 ) 201 - 210 2002年

Photoinduced Magnetization in Molecule-Based Magnets KxCo[Fe(CN)6]y•zH2O (x=0.13, y=0.77, z=3.54) and Mn(TCNE)x•y(CH2Cl2) (x=2) 査読

Dusan A. Pejakovic, Jamie L. Manson, Chitoshi Kitamura, Joel S. Miller, Arthur J. Epstein

Polyhedron 20 ( 11/14 ) 1435 - 1439 2001年

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