• 제목/요약/키워드: Complex amine

검색결과 118건 처리시간 0.025초

3급 아민염 및 4급 암모늄염의 Tetrathiocyanatocobaltate[II]에 의한 분석화학적 연구 (Studies on the Chemical Analysis of the Tertiary Amine Salt and Quaternary Ammonium Salt by Tetrathiocyanatocobaltate[II])

  • 엄동옥;이윤중
    • 약학회지
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    • 제24권3_4호
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    • pp.159-165
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    • 1980
  • Tetrathiocyanatocobaltate[II] forms complexes with tertiary amine salts or quarternary ammonium salts which were extractable from aqueous solution by organic solvent. In order to study composition of the complex, the colored crystalline complexes produced were evaluated with elemental analysis, infrared and mass spectra. And also a novel spectrophotometric method for the determination of tertiary amine salt or quarternary ammonium salt with tetrathiocyanatocobaltate[II] was established by organic solvent extraction within coefficient of variation of 1.06-1.35%.

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복합아민 적용에 따른 원전 2차 계통 부식생성물 거동평가 (Evaluation of Corrosion Product Behavior in NPP Secondary System with Complex Amine)

  • 정현준;이인형;김영인
    • 한국압력기기공학회 논문집
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    • 제10권1호
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    • pp.96-99
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    • 2014
  • The aim of the study was to evaluate the water treatment of pressurized water reactor secondary side by the mixed amine of ammonia and ethanolamine, from the standpoint of corrosion control, as compared with all volatile treatment of ammonia. The pressurized water reactor systems have switched a secondary side pH control agent to minimize the corrosion in the moisture separator/reheater and feedwater heater systems and the transport of corrosion products into steam generator. As results of field test, pH was increased in the steam generator and the wet steam area of moisture separator/reheater and the concentration of Fe were decreased by more than 50% as compared with water treatment of ammonia.

Structure of Mixed-Anions Tris(2-pyridylmethyl)amine Mn Complex, TPAMnη2-NO3)(η-CIO4)

  • Shin, Bok-Kyu;Kim, Mi-Hyang;Han, Jae-Hong
    • Bulletin of the Korean Chemical Society
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    • 제28권3호
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    • pp.417-420
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    • 2007
  • Mononuclear mixed-anions Mn complex of TPAMn(η2-NO3)(η-ClO4), where TPA is tris(2-pyridylmethyl)-amine, has been synthesized and characterized. The neutral TPAMn(η2-NO3)(η-ClO4) was obtained from the reaction between Mn(NO3)2·4H2O and [H3TPA](ClO4)3 in MeOH. X-ray crystallographic structure of mononuclear TPAMn(η2-NO3)(η-ClO4) complex showed a seven-coordinated geometry with a tripodal tetradentate TPA, a terminal perchlorate and an η2-bound nitrate.

Studies on Reactions of a Nickel Complex of a New Completely Conjugated Macrocyclic Ligand

  • Park, Young-Ae W.;Oh, Soon-Song
    • Bulletin of the Korean Chemical Society
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    • 제8권6호
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    • pp.476-479
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    • 1987
  • The macrocyclic nickel complex of the molecular formula[Ni($C_{32}H_{26}N_4$)] has been synthesized from the template condensation reaction between 1-benzoylacetone and o-phenylenediamine in the presence of nickel acetate. Protonation and deuterium exchange reactions of the demetallated macrocyclic ligand and the nickel complex have been carried out. The infrared, electronic and proton magnetic resonance spectral data of both compounds are compared and discussed; protonation of the macrocyclic ligand take place at the nitrogen atoms and all the amine protons undergo very rapid deuterium exchange while the methine protons undergo very slow exchange. On the other hand, protonation of the nickel complex occurs at the nitrogen atoms and only amine protons undergo rapid deuterium exchange. Protonation and deprotonation of the nickel complexes proceed reversibly.

생체 모방 폴리아민 복합체 기반의 크기 조절이 가능한 아민 기능화 실리카 나노입자의 합성 (Synthesis of Size Controllable Amine-Functionalized Silica Nanoparticles Based on Biomimetic Polyamine Complex)

  • 김동영;김재성;이창수
    • Korean Chemical Engineering Research
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    • 제60권3호
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    • pp.407-413
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    • 2022
  • 본 연구는 생체 모방 폴리아민 복합체를 통해 아민 그룹(amine group)이 기능화 되고 크기 조절이 간편한 실리카 나노입자의 합성 방법에 관한 것이다. 먼저, 실리카 나노입자를 합성하기 위한 촉매로써 polyallylamine hydrochloride(PAH)와 인산 이온(phosphate ion)으로 구성된 폴리아민 나노 복합체를 형성하였다. 복합체의 크기는 pH 조건에 따라 가역적인 조절이 가능하다. 나노 복합체에 존재하는 PAH 주쇄의 다량의 아민 그룹들은 silicic acid의 축합(condensation) 반응을 촉매 하며, 결과적으로 실리카 나노입자를 매우 빠른 시간 내에 합성할 수 있다. 최종적으로 pH 조건에 따라 다양한 크기를 갖는 실리카 나노 입자를 합성하였다. 실리카 나노입자의 합성 과정에서 촉매 역할을 하는 PAH는 나노입자의 내부 및 표면에 함입되고 합성된 실리카 나노입자의 표면에 아민 그룹이 노출된다. 본 방법은 실리카 나노입자의 합성과 표면개질이 동시에 이루어지며, 아민 그룹이 도입된 실리카 나노입자를 다양한 크기로 조절하여 손쉽게 합성할 수 있다. 최종적으로, 본 연구에서 제시한 방법은 기존의 합성법 보다 온화한 조건 하에서 단시간 내에 실리카 나노입자를 합성할 수 있으며, 생체 공학 및 재료 분야에서 적용되어 넓게 활용될 수 있다.

Regio- & Stereoselective Synthetic Method for Polyhydroxyamines using Chlorosulfonyl lsocyanate

  • Kim, In-Su;Lim, Seung-Yong;Kim, Ji-Duck;Jung, Young-Hoon
    • 대한약학회:학술대회논문집
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    • 대한약학회 2002년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2
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    • pp.341.3-342
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    • 2002
  • The interest in polyhydroxyamines is based in their biological activity as enzyme inhibitors. and as starting materials in the synthesis of more complex compounds. Polyhydroxyamines is that amine group is continuing structurally with hydroxy groups and has become important target of the synthesis strategy because of the chirality control of amine group and each hydroxy groups. (omitted)

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