• 제목/요약/키워드: 2,2-Bipyridine

검색결과 95건 처리시간 0.022초

비피리미딘계 배위자를 골격으로 하는 Pt(II)착체의 합성 및 특성 (A Synthesis and Characterization of Pt(II) Complexes with Bipyrimidin-based Back-bone System)

  • 손석환;안호근;정민철
    • Korean Chemical Engineering Research
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    • 제54권4호
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    • pp.555-559
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    • 2016

  • 본 연구에서는 2,2'-bispyrimidine (bpim), 2,2'-bipyridine (bpy), 5,5'-dimethyl-2,2'-bipyridine (5,5-mebpy), 5'-bromo-2,2'-bipyridine (5-brbpy), 5,5'-dibromo-2,2'-bipyridine (5,5-brbpy), 4,4'-dimethyl-2,2'-bipyridine (4,4-mebpy), 4,4'-dihexyl-2,2'-Bipyridine (4,4-hebpy), 1,10'-Phenanthroline (phen), 3,4,7,8'-tetramethyl-1,10'-Phenanthroline (3,4,7,8-phen)을 사용하여 단핵 Platinum착체를 합성하였다. 합성되어진 Platinum착체의 화학적 구조를 결정하기 위해서 $^1H(^{13}C)$-NMR, FT-IR을 사용하였으며, 광 물리학적 특성에 대한 측정은 UV-vis, PL을 통하여 측정하였다. 합성한 Platinum착체는 356 nm~421 nm영역에서 발광파장이 확인되었으며, DMSO용액에서 내부양자효율이 0.05~0.46으로 나타났다.

  • https://doi.org/10.9713/kcer.2016.54.4.555 인용 PDF KSCI

(Bakelite-A)-(2,2'-Bipyridine)-Ni(Ⅱ) 착물의 질산이온 선택성 막전극 (Nitrate Ion-Selective Membrane Electrode Based on Complex of (Bakelite-A)-(2,2'-Bipyridine)-Ni(Ⅱ) Nitrate)

  • 신두순;정기원
    • 대한화학회지
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    • 제36권3호
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    • pp.383-392
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    • 1992

  • (Bakelite-A)-(2,2'-Bipyridine)-Ni(Ⅱ) Nitrate 착물 막전극이 질산 이온 선택성 막전극이 됨을 확인하였다. 이 막전극은 수소 이온이나 2가 및 3가 음이온에는 감응하지 아니하였고, 특히 이 막전극의 수명, 감응 농도 범위, 감응 시간 및 이온 선택성 등 전기 화학적 성질과 착물 리간드의 유성도 크기 사이의 관계를 비료 고찰하였고, 또한 막의 최적 조건의 착물조성 구조로부터 막의 이온교환 메카니즘을 고찰하였다.

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Photochemical Hydrogen Evolution in K4Nb6O17 Semiconductor Particles Sensitized by Phosphonated Trisbipyridine Ruthenium Complexes

  • Jung, Young-Hee;Shim, Hyun-Kwan;Kim, Hyun-Woo;Kim, Yeong-Il
    • Bulletin of the Korean Chemical Society
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    • 제28권6호
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    • pp.921-928
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    • 2007

  • Three different phosphonated trisbipyridine ruthenium complexes, [(4-CH3-4'-CH2PO(OH)2-2,2'-bipyridine)- (bpy)2Ru]·(PF6)2 (Ru-P1), [(4-CH3-4'-CH2PO(OH)2-2,2'-bipyridine)3Ru]·(PF6)2 (Ru-P2), and [(4,4'-CH2PO- (OH)2-2,2'-bipyridine)3Ru]·(PF6)2 (Ru-P3) were synthesized and their photochemical and electrochemical properties were studied. These ruthenium complexes were strongly adsorbed on the surface of the layered metal oxide semiconductor K4Nb6O17 that was partially acid-exchanged and sensitized up to pH 10, while the carboxylated ruthenium complex, (4,4'-COOH-2,2'-bipyridine)3Ru·Cl2 (Ru-C) that was previously studied was sensitized only below pH 4. The visible light water reduction at K4Nb6O17 that was internally platinized and sensitized by these phosphonated Ru-complexes was comparatively studied using a reversible electron donor iodide.

  • https://doi.org/10.5012/bkcs.2007.28.6.921 인용 PDF KSCI

Preparation and Photophysical Properties of 4-(9-Anthrylethenyl)-4'-methyl-2,2'-bipyridine and Its Ruthenium Bipyridyl Complex $[Ru(bpy)_2(t-aemb)](PF_6)_2$

  • 배은영;신은주
    • Bulletin of the Korean Chemical Society
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    • 제19권1호
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    • pp.86-93
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    • 1998

  • Trans-4-(9-anthrylethenyl)-4'-methyl-2,2'-bipyridine(t-aemb) and its bipyridyl Ru complex $[Ru(bpy)_2(t-aemb)](PF_6)_2$ (bpy=2,2'-bipyridine) 1 have been prepared and their excited state properties have been studied. t-Aemb exhibits solvent-dependent fluorescence and efficient trans→cis photoisomerization. 1 shows very weak fluorescence and its photochemically reactive. Fluorescence is wavelength-dependent. While the excitation into the MLCT band makes the complex fluorescent, direct absorption by the t-aemb ligand leads to the photoreaction of t-aemb ligand and no fluorescence is observed. 1 is considered to behave in part as bichromophoric molecule in which $[Ru(bpy)_3](PF_6)_2$ and anthryl group are covalently linked by ethenyl linkage. Because anthryl moiety is not effectively conjugated with bipyridylethenyl moiety due to steric hindrance, weak fluorescence can be explained due to the efficient energy or electron transfer.

  • https://doi.org/10.5012/bkcs.1998.19.1.86 인용 PDF

폴리(에테르)사슬이 결합된 Cobalt(II)bipyridine 착물의 합성과 전기화학적 성질 (Electrochemical Properties and Synthesis of Poly(ether)tailed Cobalt(II)bipyridine Complex)

  • 김일광;전일철
    • 분석과학
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    • 제9권3호
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    • pp.292-301
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    • 1996

  • 산화환원반응 탐침제로, poly ether 꼬리가 결합된 Cobalt(II)bipyridine 착물을 합성 하였고, 이들 화합물의 느린 확산계수와 불균일 전자이동을 설명하였다. $Co(bpy(ppgm)_2)_{3^-}(ClO_4)_2$에 전해질 $LiClO_4$가 혼합된 neat 상태의 산화반응에 대한 확산계수는 $1.5{\times}10^{-15}cm^2/s$ 였다. 이 화합물들의 불균일 전자이동 속도상수들은 확산계수와 관련이 있었다. 확산계수의 감소에 따라 속도상수(k)의 감소가 일어났다. 강한 이온쌍을 형성하는 $ClO{_4}^-$의 화합물은 약한 이온 쌍을 형성하는 $CF_3COO^-$ 화합물보다 확산계수가 훨씬 작았다.

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3-Dimensional Terbium Coordination Polymers: [Tb4(NDC)6(H2O)5]·2H2O and [Tb2(BPDC)3(H2O)3]·H2O(NDC = 2,6-Naphthalenedicarboxylate; BPDC = 2,2'-Bipyridine-4,4'-dicarboxylate)

  • Min, Dong-Won;Lee, Soon-W.
    • Bulletin of the Korean Chemical Society
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    • 제23권7호
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    • pp.948-952
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    • 2002

  • Three-dimensional terbium coordination polymers with the formulas of [Tb4(NDC)6(H2O)5]${\cdot}$2H2O (1) and [Tb2(BPDC)3(H2O)3]${\cdot}$H2O (2) (NDC = 2,6-naphthalenedicarboxylate; BPDC = 2,2'-bipyridine-4,4'-dicarboxy-late) were prepared by hydrothermal reactions. Both compounds were structurally characterized by X-ray diffraction. Compound 1 has a polymeric structure that contains four distinct Tb metals. Three Tb metals have a square-antiprismatic structure, and the remaining one has a 9-coordinate, triply capped trigonal-prismatic structure. Compound 2 is also a polymer with two distinct Tb metals, both of which have a square-antiprismatic structure. The pyridine nitrogen atoms of the BPDC 2- ligand do not coordinate to the metal centers in compound 2.

  • https://doi.org/10.5012/bkcs.2002.23.7.948 인용 PDF KSCI