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수용액 중에서 Macrocyclic Ligand와 Cu(II) 금속착물의 분광학적 연구
김선덕,방경곤,신한철 대구대학교 기초과학연구소 1986 基礎科學硏究 Vol.3 No.-
The character of Cu(II) complex with ligands 5, 7, 7,12,14,14-hexamethyl-1,4,8,11-tetraazacyclotetradeca-4, 11-diene [L₁] and 5, 5, 7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane [L₂] was studied by means of spectroscopy. The _(max) of Cu(II) complex with ligand L₁ resolved in methanol was 730.8nm under pH 4-5 and 542.5nm under pH 8 or above. The Cu(II) complex with ligand Lz resolved in methanol showed the _(max) of 520nm under pH 4 and 5 and 540-542nm under pH 8 or above. Thus the equilibrium states in the acid solution is different from that in the alkaline solution. As the Mole ratio of Cu(II) with the ligand is 1: 1, the reaction steps of the complex could be estimated. The degree of absorbancy was decreased as the polarity of solvent decreased and it decreased in order of methanol, ethanol and buthanol. The degree of absorbancy of Cu(II)-L₁ and Cu(II)-L₂ complex under pH 10 was linear between the concentration of 1.0×10-³∼1O×10-² moI ι-³. It was confirmed that the Beer's Iaw works within this concentration and thus this can be applied to measure the quantity of Cu(II) in a limited concentration.
박서영,정원우,방경곤,김용수,문장수,이우붕 慶北大學校 師範大學 科學敎育硏究所 2007 科學敎育硏究誌 Vol.31 No.-
According to the system of the oriental traditional science, everything has to be harmony and interact with one another. The fundamental notions of the traditional natural philosophy are "do(doctrine)", "taegeuk(the great absolute)", "yin-yang," "five primary substance", "four events", and "eight signs for divination". Taegeuk, especially, explains the formation and the death of all things in the universe through circulation of yin-yang, and shows the balance of nature and universe. Yin-yang, relative ideas produces four events, and four events also is divided into the eight signs for divination. 'four events', 'eight signs for divination' like 'yin-yang' indicates the cycle of nature. The essential notions of the traditional science are not different from those of modern chemistry. Taegeuk which is the origin of all things in the universe means the situation of harmony and balance through ceaseless circulation and connotes dynamic equilibrium on neutralization that chemical reaction get to. A number of opponent concepts such as acid-base, oxidation-reduction, atomic nucleus-electron are given an explanation by ying-yang(the positive and negative) that reaches Taegeuk through chemical bonding or reaction over simple antagonistic relationship. 'Yin-yang', 'four-events', 'eight signs for divination' do not imply a substance or a phenomenon in itself but the properties of them. That is why it is possible to see into various chemical concepts like a relative strength of acid-base, groups of periodic table with traditional scientific philosophy. We have regretfully neglected studies in traditional science. It is time to perform the concrete work connecting theory of traditional science with that of modern science for advisable appreciating of traditional science. Moreover, It is necessary to do research and development of educational programs or teaching-learning materials using the traditional science properly. 동양 과학 철학이나 자연 철학은 태극,음양오행,사상팔괘를 이용해 우주 만물의 운동과 자연의 순환을 설명하는데 있어 그 학문적 우수성을 부인할 수 없으나 현대의 화학식이나 수식이 현상을 미시적 관점에서 구체적으로 설명할 수 있는 것과는 달리 전통 과학이론은 거시적 관점에서 그 전체적 흐름만을 나타낸다는 한계를 가지고 있다. 그럼에도 불구하고 태극,음양오행 그리고 사상팔괘론을 중심으로 한 전통 과학 이론은 현대인들에게 과학에 대한 새로운 시각을 제공함으로써 무분별하고 비윤리적인 과학 기술 활용으로 인한 전 지구적인 문제들을 해결하는데 있어 핵심적인 역할을 수행함은 물론 오늘날의 한국 과학이 한 걸음더 전진하는데 이바지 할 수 있을 것이다. 그러므로 서구 중심의 기존의 과학문명에만 머무를 것이 아니라 동양의 전통 과학 철학을 연구하여 민족의 과학 체계를 수립하고 과학의 토착화를 이루어야 한다. 이를 성공적으로 수행하기 위해서는 전통 과학과 현대 과학 사이에 다리를 놓는 구체적인 작업이 본격적으로 진행되어야 한다. 기본적인 화학 개념들을 전통 과학적 관점에서 재해석 하는 것은 물론이고 더 나아가 전통 과학의 이론을 이용하여 화학 반응 과정을 구체적으로 설명하려는 시도가 필요할 것이다.