1998 Fiscal Year Annual Research Report

ナノテクノロジー材料としての希土類ポリ酸を用いたメゾスコピック構造の構築と光物性

Research Project

Project/Area Number	10304055
Research Category	Grant-in-Aid for Scientific Research (A)
Research Institution	Tokyo Institute of Technology
Principal Investigator	山瀬利博東京工業大学, 資源化学研究所, 教授 (80016576)
Co-Investigator(Kenkyū-buntansha)	成毛治朗東京工業大学, 資源化学研究所, 助手 (40237623) 尾関智二東京工業大学, 理学部, 助教授 (60214136) 竹中章郎東京工業大学, 生命理工学部, 助教授 (80016146)
Keywords	混合ヘテロランタニドポリ酸 / エネルギー移動 / 混合配位子ポリ酸 / X線構造解析 / 発光スペクトル / 発光寿命
Research Abstract	K_<15>H_3〔Eu_3(H_2O)_3(SbW_9O_<33>)(W_5O_<18>)_3〕・25.5H_2O,Na_7H_<19>{〔Eu_3O(OH)_3(H_2O)_3〕_2Al_2(Nb_6O_<19>)_5)}47H_2OのTb^<34>置換体及びTb/Eu混合ヘテロランタニド置換体を合成し,Tb^<3+>の^7F_6→^5D_4への光吸収により生ずるTb^<3+>の^5D_4→^7F_5,Eu^<3+>の^5Do→^7F_5の発光について温度,Eu/Tb原子比をパラメータとしてスペクトル寿命を求めTb^<3+>→Eu^<3+>へのエネルギー移動の動力学を明らかにした。エネルギー移動はForster-Dexter機構で説明でき,〔TbEu_2(H_2O)_3(SbW_9O_3(W_5O_<18>〕^<18->では6.4×10^4S^<-1>,{〔Tb_2EuO(OH)_2(H_2O)_3〕_2Al_2(Nb_6O_<19>)_5}^<26->では7.4××10^5S^<-1>のエネルギー移動速度であった。〔W_5O_<18>〕^<6->と〔BW_<11>O_<39>〕^<9->の混合配位子からなるCe^<3+>の錯体,K_9H_3〔Ce(W_5O_<18>)(BW_<11>O_<39>)〕・25H_2OがWO_3,H_3BO_3,CeCl_3を含むpH7.0-7.5の水溶液から合成されX線構造解析によって結晶構造が求められた。Ce^<3+>の配位子場はCe-O2.47(6)Åのsquare-antiprism構造でありアニオンの近似的対称性はCsであった。

Research Products
(9 results)

All Other

All Publications (9 results)

[Publications] T.Yamase: "Photo- and Electrochromism of Polyoxometalates and Related Materials" Chem.Rev.98. 307-325 (1998)
[Publications] T.Yamase,H.Naruke,A.M.San Jose Wery and M.Kaneko: "Molecular Structure and Photoluminesene of Square-anti-prismatic Europium Octahydrate Cations in[Eu(H_2O)_8]_2…" Chem.Lett.1281-1282 (1998)
[Publications] H.Naruke and T.Yamase: "Crystal Structure of K_<18.5> H_<1.5>[Ce_3(CO_3)(SbW_9O_<33>)(W_5O_<18>)_3]・14H_2O" J.Alloy & Compds.268. 100-106 (1998)
[Publications] E.Ishikawa and T.Yamase: "Kinetics of Epoxidation of Cyclooctene with H_2O_2 by α-keggin[PTi_2W_<10>O_<38>(O_2)_2]^7-Catalyst on Acetonitricle" J.Mol.Cat.116(in press). 12 (1998)
[Publications] T.Yamase,L.Yang,and R.Suzuki: "Photochemical Self-assembly Reactions of Polyoxovanadates,Structure of MoO_4^<2->-Encapsulatol Mixed-Valent Cluster…" J.Mol.Cat.(in press). (1999)
[Publications] N.Fukuda,T.Yamase,and S.Tajima: "Inhibitory Effect of Polyoxotungstates on the Production of Penicillin-binding Proteins and β-Lactamase against MRSA" Biol.Pharm.Bull.22(in press). (1999)
[Publications] T.Yamase: "Photochemical Self-assembly Reactions of Polyoxometalates" 3rd Int.Symposium Organo-Metals,Metal Complexes and Catalysis(OMC-III). B006 (1998)
[Publications] 山瀬利博(分担): "希土類の科学(印刷中)" 化学同人, 37 (1999)
[Publications] 山瀬利博(分担): "ウイルス感染症の治療(印刷中)" 医薬ジャーナル, (1999)

1998 Fiscal Year Annual Research Report

ナノテクノロジー材料としての希土類ポリ酸を用いたメゾスコピック構造の構築と光物性

Principal Investigator

山瀬 利博 東京工業大学, 資源化学研究所, 教授 (80016576)

Research Products

[Publications] T.Yamase: "Photo- and Electrochromism of Polyoxometalates and Related Materials" Chem.Rev.98. 307-325 (1998)

[Publications] T.Yamase,H.Naruke,A.M.San Jose Wery and M.Kaneko: "Molecular Structure and Photoluminesene of Square-anti-prismatic Europium Octahydrate Cations in[Eu(H_2O)_8]_2…" Chem.Lett.1281-1282 (1998)

[Publications] H.Naruke and T.Yamase: "Crystal Structure of K_<18.5> H_<1.5>[Ce_3(CO_3)(SbW_9O_<33>)(W_5O_<18>)_3]・14H_2O" J.Alloy & Compds.268. 100-106 (1998)

[Publications] E.Ishikawa and T.Yamase: "Kinetics of Epoxidation of Cyclooctene with H_2O_2 by α-keggin[PTi_2W_<10>O_<38>(O_2)_2]^7-Catalyst on Acetonitricle" J.Mol.Cat.116(in press). 12 (1998)

[Publications] T.Yamase,L.Yang,and R.Suzuki: "Photochemical Self-assembly Reactions of Polyoxovanadates,Structure of MoO_4^<2->-Encapsulatol Mixed-Valent Cluster…" J.Mol.Cat.(in press). (1999)

[Publications] N.Fukuda,T.Yamase,and S.Tajima: "Inhibitory Effect of Polyoxotungstates on the Production of Penicillin-binding Proteins and β-Lactamase against MRSA" Biol.Pharm.Bull.22(in press). (1999)

[Publications] T.Yamase: "Photochemical Self-assembly Reactions of Polyoxometalates" 3rd Int.Symposium Organo-Metals,Metal Complexes and Catalysis(OMC-III). B006 (1998)

[Publications] 山瀬利博(分担): "希土類の科学(印刷中)" 化学同人, 37 (1999)

[Publications] 山瀬利博(分担): "ウイルス感染症の治療(印刷中)" 医薬ジャーナル, (1999)

山瀬利博東京工業大学, 資源化学研究所, 教授 (80016576)