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고광오,정환 순천향대학교 기초과학연구소 2006 순천향자연과학연구 논문집 Vol.12 No.1
In this research, the structure and coordination state of Ni(Ⅱ) complexes with some ligands were investigated by spectroscopy method. [Ni(H₂O)_(6))]^(+2) and [Ni(1,4,8,12-tetraazacyclopentadecane) ]^(+2) show the octahedral complex at near 400 nm. [Ni(1,4,8,11-tetraazacyclotetradecane)]^(+2) shows the square complex (spin-paired diamagnetism) at 451 nm. When the 2-hydroxy-N-methylsuccinimide was added in [Ni(H₂O)_(6))]^(+2), there was no ligand exchange. In [NiL(H₂O)_(2))]^(+2) ⇔ [NiL]^(+2)+2H₂O, the equilibrium moved to right by temperature increase and electrolyte. The spectrochemical series of Ni^(+2) by solvents were studied by spectroscopy method.
용액에서 Zn(Ⅱ)이온과 tetraaza 거대고리 리간드의 착물
고광오 순천향대학교 기초과학연구소 2002 순천향자연과학연구 논문집 Vol.8 No.1
Ligands 1,4,8,12-tetraazacyclotetradecane(base1) and 1,4,8,12-tetraazacyclotetradecane(base2) were recrystallized. The reactions of 1,4,8,11-tetraazacyclotetradecane(base1) and 1,4,8,12-tetraazacyclotetradecane with ZnCl_(2)in aqueous solution have been studied conductimetrically. With equivalent amounts of base and ZnCl_(2), the reaction product is ZnCl_(2)(base). The molar conductivities of a solutions with base:Zn ratio 1:1 were about two thirds that expected for a 2:1 electrolyte.
고광오 순천향대학교 1991 논문집 Vol.14 No.3
The structure of Zn(cyclam)Cl₂in aqueous solution was studied by the solubility method. Zn(cyclam)Cl₂was prepared from ZnCl₂and cyclam(1, 4, 8, 11-tetraazacyclotetradecane), and analyzed by the elementary analysis and infrared spectrum. The solubility measurements were performed at 25℃ for the solutions with the Cl/Zn mole ratios of 2, 3 and 5. The solubility of Zn(cyclam)Cl₂in H₂O is 1.13 mole/1. The main species in aqueous Zn(cyclam)Cl₂ solution is [Zn(cyclam))(H₂O)Cl]. The solubility product constant of [Zn(cyclam)(H₂O)Cl][Cl] is 1.2679. LiCl was added in aqueous Zn(cyclam)Cl₂solution in order to investigate the effect of the Cl/Zn ratios on the coordination state of Zn ion. Increasing the Cl/Zn ratio does not affect the coordination state of Zn ion, but decreases the solubility of Zn(cyclam)Cl₂by the common ion effect.
용액에서 Ni(Ⅱ)이온과 functionalized 치환체를 포함하는 tetraaza 거대고리 리간드의 착물
고광오 순천향대학교 기초과학연구소 2004 순천향자연과학연구 논문집 Vol.10 No.2
Ligands NN'N''N'''-tetra(2-cyanoethyl)-1,4,8,11-tetraazacyclotetradecane(ligand 1) and NN'N''N'''-tetra(2-cyanoethyl)-1,4,8,12-tetraazacyclopentadecane(ligand 2) were synthesized. The reactions of ligand 1 and ligand 2 with NiCl₂, the reaction product is [Ni(ligand)*(H₂O)Cl]. The molar conductivities of a solutions with ligand:Ni ratio 1:1 were 97.7 Scm^(2)mol^(-1)(ligand 1) and 135.4 Scm^(2)mol^(-1)(ligand 2).
Tetra-aza Macrocycle과 Ag(Ⅰ)착화합물에 대한 구조와 반응
고광오 순천향대학교 기초과학연구소 1995 순천향자연과학연구 논문집 Vol.1 No.2
Structures of Ag(Ⅰ) complexes of 14- and 15-membered macrocyclic ligand(1,4,8,11-tetraazacycloteradecane, 1,4,8,12-tetraazacyclopentadecane) were investigated using the spectroscopic method and conductivity measurement. Macrocyclic ligands were purified by recrystallization method. Ag([14]aneN4)(ClO₄)₂favors linear coordination and Ag([15]aneN4)(ClO₄)₂is square-planar geometry. Conductances for the Ag([14]aneN4)(ClO₄)₂,Ag([15]aneN4)(ClO₄)₂are expected value for a bi-univalent electrolyte, suggesting that the anion is not directly coordinated to the silver ion.
고광오,배정호,박구용 한국항해항만학회 2007 한국항해항만학회 학술대회논문집 Vol.2 No.추계
미포만 공유수면 매립공사는 방파호안 854.5m를 축조하고 부지 100,514.3m²를 매립하여 현대중공업(주)의 조선용 블록 제작장 및 적치장을 조성하는 사업이다. 2004년 2월 해양 수산부 설계자문을 실시하고, 2004년 5월 실시계획 인가를 득하여 사업을 추진하여 오던 중, 최근의 이상파랑 및 태풍 내습(2005년 8월, 태풍 나비)등으로 인하여 피해가 발행하는 등 사업시행자인 현대중공업(주)에서 사업계획의 일부 변경(공구분할)을 요청하여 1공구(미포만 북방파제 보강)공사만을 2005년 8월말로 완료하였다. 미포만 공유수면(Ⅱ-Block) 매립공사(2공사)는 파랑 내습시 피해발생 사전예방 및 상향된 심해설계파 등에 안전한 구조물 축조로 배후매립부지의 안정성을 확보할 수 있도록 호안의 마루높이를 상향하고 케이슨 및 피복재 중량을 증대하여 설계 및 시공할 수 있도록 하였다.
고광오 순천향대학교 1993 논문집 Vol.16 No.3
The structure of the Zn(cyclam)Cl₂ in aqueous solution was investigated by X-ray diffraction method at 25℃. The [ Zn(cyclam)Cl₂] complex has an octahedral structure with nitrogen atoms of the cyclam and the additional two ligands(water molecule, chloride ion) along the axis vertical to the cyclam plane. The structure parameter values, the bond distance(r), temperature factor(b), and frequency factor(n) were refined so as to obtain an error-square sum ?? to be minimum. The bond lengths are : Zn-N 2.150, Zn-C₁(cyclam) 2.873, Zn-C₂(cyclam) 3.045, Zn-C₃(cyclam) 3.411, Zn-O(H₂O) 1.900, Zn-Cl 2.324Å.
수용액에서 tetraaza macrocycles과 Ni(Ⅱ) 착화합물의 구조
고광오 순천향대학교 기초과학연구소 1995 순천향자연과학연구 논문집 Vol.1 No.1
Structures of Ni(Ⅱ) complexes of 14- and 15-membered macrocyclic ligand (1,4,8,11-tetraazacycloteradecane, 1,4,8,12-tetraazacyclopentadecane) were investigated using the spectroscopic method and conductivity measurement. Macrocyclic ligands were purified by recrystallization method. On addition of macrocyclic ligands to the aqueous NiCl₂solution, the conductivity decreased steadily to a base:metal ion ratio of 1:1 and increased smoothly. This is due to the hydroxide ion by basic ligand(tetraaza macrocycles). By slope of the conductivity, 1,4,8,11-tetraazacyclotetradecane is more basic than 1,4,8,12-tetraazacyclopentadecane. According to the U.V. spectra, Ni(1,4,8,11-tetraazacyclotetradecane)Cl₂shows the square plane structure and Ni(1,4,8,12-tetraazacyclopentadecane)Cl₂is the distorted octahedral structure in aqueous solution.
고광오 순천향대학교 1992 논문집 Vol.15 No.3
The structures of complexes of Zn(cyclam)Cl₂in acetonitrile and aqueous solution have been determined from Raman spectra. Zn(cyclam)Cl₂was prepared from ZnCl₂and cyclam. Raman spectra were excited using the 4880A line irradiation from argon ion laser. In acetonitrile solution, zinc ion was coordinated with the five nitrogen atoms and chloried ion. In aqueous solution, the main species is [Zn(cyclam)(H₂O)(Cl)]. In the Raman spectra of aqueous [Zn(cyclam)Cl₂], the line at 405㎝? is due to the Zn-O stretching vibration of the H₂O. The line at ?? is assignable to the Zn-N stretching vibration of the cyclam. The line at 335㎝? is ascribed to the Zn-Cl stretching vibration of the Zn(cyclam)Cl₂. No change in the Raman spectra was observed in solutions of Cl/Zn=3.5 prepared by introduction of LiCl into the solution of Cl/Zn=2. This effect is explained by the softness of the chloride ion.