Matches in SemOpenAlex for { <https://semopenalex.org/work/W759801908> ?p ?o ?g. }
Showing items 1 to 89 of
89
with 100 items per page.
- W759801908 endingPage "577" @default.
- W759801908 startingPage "569" @default.
- W759801908 abstract "피리딘과 페놀을 포함하는 N2O계 세 자리 리간드 2-[(2-pyridine-2- ethylamino)-methyl]-phenol(H-PEMP)를 합성하였다. 또한 H-PEMP 페놀의 5-위치에 치환기로 브롬, 염소 및 메톡시를 가지는 Br-PEMP, Cl-PEMP 및 <TEX>$CH_3O-PEMP$</TEX>를, 그리고 2-hydroxy-1-naphthalene기를 가진 Naph-PEMP을 합성하였다. 합성된 각 리간드들을 수용액에서 전위차 적정 결과 양성자 해리는 3 단계로 일어났으며, 계산된 각 리간드의 총괄 양성자 해리상수(log<TEX>${beta}$</TEX>) 값은 <TEX>$CH_3O-PEMP$</TEX>〉Naph-PEMP〉H-PEMP〉Br-PEMP〉Cl-PEMP의 순서로 Hammett식의 치환기 상수(<TEX>${sigma}_p$</TEX>) 값 크기 순서와 일치하였다. 전이금속 이온들의 착물 안정도상수(logML 및 log<TEX>$ML_2$</TEX>) 값의 크기는 금속이온에 따라 Co(II)< Ni(II)< Cu(II)>Zn(II)의 순서이었고, 치환기에 따른 각 리간드의 착물 안정도상수 값은 리간드의 총괄 양성자 해리상수 값의 크기순서와 일치하였다. Ligands, Br-PEMP, Cl-PEMP and <TEX>$CH_3O-PEMP$</TEX> having Br, Cl and <TEX>$CH_3O$</TEX> substituents at 5-position of the <TEX>$N_2O$</TEX> tridentate ligand, 2-[(2-pyridine-2-ethylamio)-methyl]-phenol (H-PEMP) containing pyridine and phenol were synthesized. Another ligand, Naph-PEMP having pyridine and 2-hydroxy-1-naphthalene was also synthesized. The ligands were characterized using elemental analysis, UV-visible, IR, <TEX>$^1H;NMR;and;^{13}C$</TEX> NMR spectroscopy and mass analysis. The potentiometric titration study in aqueous solution revealed that the proton dissociation of the ligands occurred in three steps and the order of overall proton dissociation constants (log<TEX>${beta}$</TEX>) was <TEX>$CH_3O-PEMP$</TEX> > Naph-PEMP > H-PEMP > Cl-PEMP > Br-PEMP. The order of stability constants (logML and log<TEX>$ML_2$</TEX>) of their transition metal complexes was Co(II) < Ni(II) < Cu(II) > Zn(II). The order in their stability constants values of each transition metal complex agreed well with that in overall proton dissociation constant value of the ligands." @default.
- W759801908 created "2016-06-24" @default.
- W759801908 creator A5020475342 @default.
- W759801908 creator A5074373726 @default.
- W759801908 date "2003-12-20" @default.
- W759801908 modified "2023-10-18" @default.
- W759801908 title "Synthesis of New N2O Tridentate Ligands and Their Stability Constants of Transition Metal Complexes" @default.
- W759801908 cites W1969237818 @default.
- W759801908 cites W1981930416 @default.
- W759801908 cites W2038302111 @default.
- W759801908 cites W2040033406 @default.
- W759801908 cites W2043299259 @default.
- W759801908 cites W2050711462 @default.
- W759801908 cites W2070694735 @default.
- W759801908 cites W2078359448 @default.
- W759801908 cites W2084910359 @default.
- W759801908 cites W2095226203 @default.
- W759801908 cites W2151711477 @default.
- W759801908 cites W3004591339 @default.
- W759801908 cites W3005417103 @default.
- W759801908 doi "https://doi.org/10.5012/jkcs.2003.47.6.569" @default.
- W759801908 hasPublicationYear "2003" @default.
- W759801908 type Work @default.
- W759801908 sameAs 759801908 @default.
- W759801908 citedByCount "1" @default.
- W759801908 countsByYear W7598019082019 @default.
- W759801908 crossrefType "journal-article" @default.
- W759801908 hasAuthorship W759801908A5020475342 @default.
- W759801908 hasAuthorship W759801908A5074373726 @default.
- W759801908 hasBestOaLocation W7598019081 @default.
- W759801908 hasConcept C102931765 @default.
- W759801908 hasConcept C103319777 @default.
- W759801908 hasConcept C106773901 @default.
- W759801908 hasConcept C116569031 @default.
- W759801908 hasConcept C124614425 @default.
- W759801908 hasConcept C147789679 @default.
- W759801908 hasConcept C155647269 @default.
- W759801908 hasConcept C161790260 @default.
- W759801908 hasConcept C168191866 @default.
- W759801908 hasConcept C170493617 @default.
- W759801908 hasConcept C17525397 @default.
- W759801908 hasConcept C178790620 @default.
- W759801908 hasConcept C179104552 @default.
- W759801908 hasConcept C184651966 @default.
- W759801908 hasConcept C184866935 @default.
- W759801908 hasConcept C185592680 @default.
- W759801908 hasConcept C2779485729 @default.
- W759801908 hasConcept C55493867 @default.
- W759801908 hasConcept C71240020 @default.
- W759801908 hasConceptScore W759801908C102931765 @default.
- W759801908 hasConceptScore W759801908C103319777 @default.
- W759801908 hasConceptScore W759801908C106773901 @default.
- W759801908 hasConceptScore W759801908C116569031 @default.
- W759801908 hasConceptScore W759801908C124614425 @default.
- W759801908 hasConceptScore W759801908C147789679 @default.
- W759801908 hasConceptScore W759801908C155647269 @default.
- W759801908 hasConceptScore W759801908C161790260 @default.
- W759801908 hasConceptScore W759801908C168191866 @default.
- W759801908 hasConceptScore W759801908C170493617 @default.
- W759801908 hasConceptScore W759801908C17525397 @default.
- W759801908 hasConceptScore W759801908C178790620 @default.
- W759801908 hasConceptScore W759801908C179104552 @default.
- W759801908 hasConceptScore W759801908C184651966 @default.
- W759801908 hasConceptScore W759801908C184866935 @default.
- W759801908 hasConceptScore W759801908C185592680 @default.
- W759801908 hasConceptScore W759801908C2779485729 @default.
- W759801908 hasConceptScore W759801908C55493867 @default.
- W759801908 hasConceptScore W759801908C71240020 @default.
- W759801908 hasIssue "6" @default.
- W759801908 hasLocation W7598019081 @default.
- W759801908 hasOpenAccess W759801908 @default.
- W759801908 hasPrimaryLocation W7598019081 @default.
- W759801908 hasRelatedWork W197618319 @default.
- W759801908 hasRelatedWork W2024994615 @default.
- W759801908 hasRelatedWork W2059072475 @default.
- W759801908 hasRelatedWork W2073132810 @default.
- W759801908 hasRelatedWork W2073963686 @default.
- W759801908 hasRelatedWork W2184373292 @default.
- W759801908 hasRelatedWork W2187250034 @default.
- W759801908 hasRelatedWork W2381938102 @default.
- W759801908 hasRelatedWork W2734104844 @default.
- W759801908 hasRelatedWork W4365935629 @default.
- W759801908 hasVolume "47" @default.
- W759801908 isParatext "false" @default.
- W759801908 isRetracted "false" @default.
- W759801908 magId "759801908" @default.
- W759801908 workType "article" @default.