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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 22, Number 5
BKCSDE 22(5)
May 20, 2001 

 

439  

Use of a Pyrimidine-Filtered Pulse Sequence Simplifies the Proton-NMR Spectrum of RNA
Hae-Kap Cheong, Chaejoon Cheong
Keywords: RNA, Pyrimidine-filtered, NMR.

Abstract | Full Text: PDF


441  

Electrode-Assisted Wacker Process: Phosphomolybdate-Mediated Oxidation of 1-Butene to Methyl Ethyl Ketone
Dae Youn Hwang, Sung Yong Ha, Sunghyun Kim
Keywords: Olefin oxidation, Wacker process, Phosphomolybdate, Electrochemistry, 1-Butene.

Abstract | Full Text: PDF


443  

Facile Synthesis of Optically Active Styrene Oxide Derivatives by Asymmetric Reduction of Substituted 2-Sulfonyloxyacetophenones with (-)-B-Chlorodiisopinocampheylborane ( d Ipc2BCl)
Byung Tae Cho, Ok Kyoung Choi
Keywords: Chiral epoxide, Asymmetric reduction, (-)-Ipc2BCl.

Abstract | Full Text: PDF


445  

[2+2] Cyclodimers of 1-Cyanoacenaphthylene and Benzene
Taehee Noh, Jungae Yoon, Yeonbin Lee, Jeongho Cha
Keywords: [2+2] Cyclodimer, Adiabatic photodissociation, Acenaphthylene.

Abstract | Full Text: PDF


447  

Behavior of Angular Distributions of S(3 P) Near Multichannel Asymmetric Resonance in the Photodissociation of SH
Sungyul Lee
Keywords: Multichannel, Resonance, Photodissociation, SH.

Abstract | Full Text: PDF


449  

Aziridination of Imines Mediated by Copper Catalysts
Seung-Han Lee, Tae-Dong Han, Kyunga Yu, Kwang-Hyun Ahn
Keywords: Aziridines, Copper catalyst, Lewis acid, Imines.

Abstract | Full Text: PDF


451  

Synthesis and Characterization of Novel Polyimides Containing Bulky Trimethylsilylphenyl Group
Yun-Hi Kim, Seong-Kuk Ahn, Soon-Ki Kwon
Keywords: Aromatic soluble polyimide, p-Trimethylsilylphenyl, Good thermal and mechanical stability.

Abstract | Full Text: PDF


453  

Solvate Effect on Magnetic Relaxation in [Mn12O12(O2CCH2CH2Cl)16(H2O)4] Containing Complexes
Chi-Dong Park, Seog Woo Rhee, YooJin Kim, WonSuk Jeon, Duk-Young Jung, Do-hyeon Kim, Youngkyu Do, Hyeong-Cheol Ri
Keywords: Single-molecule magnets, Manganese, Magnetic relaxation, Solvate effect.

Abstract | Full Text: PDF


455  

Potential Energy Surface from Spectroscopic Data in the Photodissociation of Polyatomic Molecules
Hwa Joong Kim, Young Sik Kim
Keywords: Potential energy surface, Wave packet propagation, Inversion method, Photodissociation dynamics, Raman spectra.

Abstract | Full Text: PDF


463  

Spectrophotometric Determination of Cadmium and Copper with Ammonium Pyrrolidinedithiocarbamate in Nonionic Tween 80 Micellar Media
Seung Kwon Lee, Hee-Seon Choi
Keywords: Micellar media, Tween 80, Ammonium pyrrolidinedithiocarbamate, Stream water, Diluted brass sample.

Abstract | Full Text: PDF


467  

Preparation of Core-shell Type Nanoparticles of Poly(ε-caprolactone) /Poly(ethylene glycol)/Poly( ε-caprolactone) Triblock Copolymers
Jae-Gon Ryu, Young-Il Jeong, Young-Hoon Kim, In-Sook Kim, Do-Hoon Kim, Sung-Ho Kim
Keywords: Triblock copolymer, Core-shell type nanoparticles, Biodegradation.

Abstract | Full Text: PDF


476  

Transformations of Aldimines Derived from Pyrrole-2-carbaldehyde. Synthesis of Thiazolidino-Fused Compounds
Feray Aydogan, Nuket Ocal, Zuhal Turgut, Cigdem Yolacan
Keywords: Pyrrole-2-carbaldehyde, 4-thiazolidinone, Benzylidene derivatives, Dihydrofurothiazolidines, pyrazolinothiazolidines.

Abstract | Full Text: PDF


481  

Characterization of Surface Films Formed Prior to Bulk Reduction of Lithium in Rigorously Dried Propylene Carbonate Solutions
Seok-Gyun Chang, Hyo Joong Lee, Heon Kang, Su-Moon Park
Keywords: Surface films, Passivation, Lithium reduction, Propylene carbonate, Electrochemical quartz crystal microbalance, Secondary ion mass spectrometry.

Abstract | Full Text: PDF


488  

Selective Data Reduction in Gas Chromatography/Infrared Spectrometry
Dongjin Pyo, Hyundu Shin
Keywords: Selective data reduction, Infrared data, Pattern search, Fingerprint region.

Abstract | Full Text: PDF


493  

An Efficient and Eco-friendly Approach to 15 N-Unsubstituted β-Lactams: 15 N-Labled Synthons for Taxol and Its Analogs
Sang Hyun Park, Sang Yup Lee, Ajay K. Bose
Keywords: 15N-Labled synthons for taxol, 15N-Unsubstituted b-lactams.

Abstract | Full Text: PDF


499  

How are the Lower Lying Atoms Imaged Brighter than the Higher Lying Ones in the STM Experiments?
Dongwoon Jung
Keywords: Transition metal dichalcogenides, STM, AFM, Electron density, Fermi energy.

Abstract | Full Text: PDF


503  

Chromatographic Enrichment of Lithium Isotopes by Hydrous Manganese(IV) Oxide
Dong Won Kim
Keywords: Lithium isotope separation, MnO2 exchanger, Capacity, Isotope effects, Elution chromatography.

Abstract | Full Text: PDF


507  

NMR Studies on the N-Terminal Acetylation Domain of Histone H4
Eunjung Bang, Chang-Hun Lee, Jong-Bok Yoon, Joohee Chung, Dai Woon Lee, Weontae Lee
Keywords: Histone H4, Acetylation, NMR structure.

Abstract | Full Text: PDF


514  

Protection of Metal Stress in Saccharomyces cerevisiae: Cadmium Tolerance Requires the Presence of Two ATP-Binding Domains of Hsp104 Protein
Kyunghee Lee, Junghoon Ueom
Keywords: Cadmium stress, Oxidative stress, ATP binding sites.

Abstract | Full Text: PDF


519  

Calix[4]azacrown Ethers in Polymeric CTA Membrane
Jong S. Kim, Sang H. Yu, Moon H. Cho, Ok J. Shon, Jeong A. Rim, Seung H. Yang, Jae K. Lee, Suk J. Lee
Keywords: Calixazacrown ether, Membrane, Transport experiment, Polymer inclusion membrane.

Abstract | Full Text: PDF


523  

Carbon Monoxide Binding to Nickel(I) Macrocyclic Complexes Generated by Electrochemical Method
Hyun Jin Jung, Hyochoon Bang, Myunghyun Paik Suh
Keywords: Nickel(I), Macrocyclic complexes, Carbon monoxide binding.

Abstract | Full Text: PDF


527  

A Significant Fluorescence Quenching of Anthrylaminobenzocrown Ethers by Paramagnetic Metal Cations
Jeong Ho Chang, Young Muk Choi, Young-Kook Shin
Keywords: Fluorescence quenching, Paramagnetic effect, Nonradiative quenching.

Abstract | Full Text: PDF


531  

A Zinc(II)-Carboxylate Coordination Polymer Constructed from Zinc Nitrate and 2,6-Naphthalenedicarboxylate
Dongwon Min, Seung Soo Yoon, Chanwoo Lee, Chang Yeon Lee, Myungkoo Suh, Yun-Jung Hwang, Won Seok Han, Soon W. Lee
Keywords: Zinc(II)-carboxylate, Coordination, Polymer.

Abstract | Full Text: PDF


534  

Conversion of Molecular Helical Springs to Chicken-wire Grids
Ok-Sang Jung, Yun Ju Kim, Young-A Lee, Kyung Ho Yoo, Hee K. Chae
Keywords: Chicken-wire grid, Silver complex, Anion exchange.

Abstract | Full Text: PDF