ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 51, Number 4
JKCSEZ 51(4)
August 20, 2007 

305  

Corrosion and Passivation of Copper in Artificial Sea Water
인공해수에서 구리의 부식과 부동화 반응
Jung-Kyoon Chon, Younkyoo Kim*
Keywords: Sea-water, Copper, Corrosion, Passivation , Sea-water, Copper, Corrosion, Passivation
DOI: https://doi.org/10.5012/jkcs.2007.51.4.305

Abstract  |  Full Text: PDF

312  

Study of Excess Gibbs Energy for a Lattice Solution by Random Number Simulation
난수 모의실험을 통한 격자용액의 과잉깁스에너지에 대한 고찰
Hae-Young Jung*
Keywords: 논랜덤혼합, 과잉깁스에너지, 격자 , Nonrandom Mixing, Excess Gibbs Energy, Lattice
DOI: https://doi.org/10.5012/jkcs.2007.51.4.312

Abstract  |  Full Text: PDF

318  

Electronic Spectroscopy of Protonated Tyr-Ala Dipeptide Ions
Tyr-Ala 펩타이드 이온의 전자전이 분광 연구
Chang Min Choi, Jang Sook Kwon, Hwan Jin Kim, Tae Oh Yoon, Mino Yang, Nam Joon Kim*
Keywords: 전자전이 스펙트럼, 전자분무이온화, 광분해, 펩타이드 이온 , Electronic Spectrum, Electrospray Ionization, Photodissociation, Peptide Ion
DOI: https://doi.org/10.5012/jkcs.2007.51.4.318

Abstract  |  Full Text: PDF

324  

A Highly Selective Mercury(II) Ion-Selective Membrane Sensor
고 선택성 수은(II) 이온 막 센서
Ali A. Ensafi*, S. Meghdadi, Ali R. Allafchian
Keywords: Bis(benzoylacetone)propylenediimine, 이온 선택성전극 PVC, Hg(II) , Bis(benzoylacetone)propylenediimine, Ion selective electrode, PVC, Hg(II)
DOI: https://doi.org/10.5012/jkcs.2007.51.4.324

Abstract  |  Full Text: PDF

331  

Direct and Derivative Spectrophotometric Determination of Cobalt (II) in Microgram Quantities with 2-Hydroxy-3-methoxy Benzaldehyde Thiosemicarbazone
2-Hydroxy-3-methoxy Benzaldehyde Thiosemicarbazone를 사용하여 마이크로 그램 코발트(II)의 직접 및 유도 분광광도법에 의한 정량
A. Praveen Kumar, P. Raveendra Reddy*, V. Krishna Reddy
Keywords: 분광광도법, 코발트 정량, HMBATSC , Spectrophotometry, Determination of cobalt, HMBATSC
DOI: https://doi.org/10.5012/jkcs.2007.51.4.331

Abstract  |  Full Text: PDF

339  

Synthesis and Spectroscopic Studies of Metal Complexes Formed in the Reaction of Metal Ions with Urea at High Temperature
높은 온도에서 Urea와 금속이온과의 반응으로 얻어진 금속 Complexes의 합성과 분광학적 연구
Akmal S. Gaballa*, Said M. Teleb, El-Metwally Nour
Keywords: 합성, Urea, Platinum, Nickel, Iridium, IR, NMR Spectra, 열분석 , Synthesis, Urea, Platinum, Nickel, Iridium, IR, NMR Spectra, Thermal Analysis
DOI: https://doi.org/10.5012/jkcs.2007.51.4.339

Abstract  |  Full Text: PDF

346  

Dry Media Reaction Procedure for Synthesis of α,β-Unsaturated Acids, α-Cyanoacrylonitriles and α-Cyanoacrylates via Knoevenagel Condensation Using NaHSO₄·SiO₂ Catalyst
NaHSO₄·SiO₂촉매를 이용한 Knoevenagel 축합을 거친 α,β의 불포화산, α-Cyanoacrylonitriles와 α-Cyanoacrylates의 합성을 위한 무수조건하의 반응 절차
M. Gopalakrishnan*, P. Sureshkumar, V. Kanagarajan, J. Thanusu, S. Thirunavukkarasu
Keywords: NaHSO₄·SiO₂, Knoevenagel축합, Arylidene 화합물, Solvent-free solid-state 반응, (E)-3-(2-butyl-4-chloro- 1H-imidazol-5-yl)acrylic acid; Microwave irradiation , Silica Gel Supported Sodium Hydrogen Sulphate, Knoevenagel Condensation, Aryli
DOI: https://doi.org/10.5012/jkcs.2007.51.4.346

Abstract  |  Full Text: PDF

352  

3,7-Dihydroxy-2,4,6-trimethoxyphenanthrene, A New Phenanthrene from Bulbophyllum Odoratissimum
Bulbophyllum Odoratissimum에서 추출한 새로운 페난트렌, 3,7-Dihydroxy-2,4,6-trimethoxyphenanthrene
Ye-Gao Chen*, Jun-Ju Xu, Hong Yu, Chen Qing*, Yan-Li Zhang, Ying Liu, Ji-Hua Wang
Keywords: Bulbophyllum odoratissimum, 난초목난초과, 페난트렌, 3,7-Dihydroxy-2,4,6-trimethoxyphenanthrene, 세포독성 , Bulbophyllum odoratissimum, Orchidaceae, Phenanthrene, 3,7-Dihydroxy-2,4,6-trimethoxyphenanthrene, Cytotoxicity
DOI: https://doi.org/10.5012/jkcs.2007.51.4.352

Abstract  |  Full Text: PDF

356  

One-pot Synthesis of 5,7-Diaryl-3,4,6-trihydronaphthalen-2-ones
5,7-Diaryl-3,4,6-trihydronaphthalen-2-ones의 One-pot 합성
M. Gopalakrishnan*, H. Manikandan, P. Sureshkumar, J. Thanusu, V. Kanagarajan
Keywords: 3,5-Diarylcyclohex-2-en-1-ones, Methyl vinyl ketone, Sodium ethoxide, One-pot, 5,7-Diaryl-3,4,6-trihydronaphthalen-2-ones. , 3,5-Diarylcyclohex-2-en-1-ones, Methyl Vinyl Ketone, Sodium Ethoxide, One-pot, 5,7-Diaryl-3,4,6-trihydronaphthalen-2-ones
DOI: https://doi.org/10.5012/jkcs.2007.51.4.356

Abstract  |  Full Text: PDF

361  

One-Pot Efficient Beckmann Rearrangement of Ketones Catalyzed by Silica Sulfuric Acid
황산-실리카에 의해 촉진된 Ketone의 효율적인 One-Pot 베크만 자리옮김 반응
H. Eshghi*, A. Hassankhani
Keywords: 황산-실리카.케톤,아미드, Microwave irradiation, Beckmann 자리옮김 반응 , SilIca Sulfuric Acid, Ketones, Amides, Microwave Irradiation, Beckmann Rearrangement
DOI: https://doi.org/10.5012/jkcs.2007.51.4.361

Abstract  |  Full Text: PDF

365  

Identification of High School Students' Understanding on the Reaction Rate Change During Chemical Equilibrium Shift
화학 평형 이동시 반응 속도 변화에 대한 고등학생들의 이해 조사
Jong-Yoon Park*, Hyun-Hee Yu
Keywords: 화학 평형 이동, 화학 반응 속도, 학생 개념, 세트화 된 질문지 , Chemical Equilibrium Shift, Reaction Rate, Students' Conception, Set Questionnaires
DOI: https://doi.org/10.5012/jkcs.2007.51.4.365

Abstract  |  Full Text: PDF

375  

Case Study on Verbal Interactions of Teacher-Small Group Students in Science Experiments
과학 실험에서 교사-모둠학생의 언어적 상호작용 사례연구
Suk Kyoung Seong*, Byung Soon Choi
Keywords: 과학 실험, 교사-모둠학생, 언어적 상호작용 , Teacher-Small Group Students Verbal, Interactions, Science Experiment
DOI: https://doi.org/10.5012/jkcs.2007.51.4.375

Abstract  |  Full Text: PDF

387  

Study of Ring-Expansion of (η⁵-Cyclopentadienyl)-μ-(η⁵-1,2,3,4,5- Pentamethyl-1,3-diborole)Cobalt Complex
(η⁵-Cyclopentadienyl)-μ-(η⁵-1,2,3,4,5-Pentamethyl-1,3-diborole)Cobalt 착물의 고리팽창에 대한 연구
Jae-Kook Uhm*
Keywords: 1,2,3,4,5-Pentamethyl-1,3-Diborole 코발트 샌드위치 착물의 고리팽창 , Ring Expansion-1,2,3,4,5-Pentamethyl-1,3-Diborole Cobalt Sandwich complexes
DOI: https://doi.org/10.5012/jkcs.2007.51.4.387

Abstract  |  Full Text: PDF

392  

Conversion of meso diol Acetals to Chiral Hydroxy Benzyl Ethers by Chiral Auxiliary
키랄성 보조기를 이용한 meso diol로부터 얻어진 acetal의 키랄성 하이드록시 벤질 에테르로의 전환반응
Jin Yeon Kim*
Keywords: MCPBA 산화, 메조 다이올 아세탈, 하이드록시 벤질이터 , MCPBA Oxidation, Meso diol Aectal, Hydroxy Benzyl Ethers, (1R, 2R, 3S, 4S)-3-Methylbycyclo[2,2,1]heptane 2-carboxaldehyde
DOI: https://doi.org/10.5012/jkcs.2007.51.4.392

Abstract  |  Full Text: PDF