ACOMS+ 및 학술지 리포지터리 설명회

  • 한국과학기술정보연구원(KISTI) 서울분원 대회의실(별관 3층)
  • 2024년 07월 03일(수) 13:30
 

  • P-ISSN1225-0163
  • E-ISSN2288-8985
  • SCOPUS, ESCI, KCI

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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

Silylene과 Silylene 전구체의 반응 특성 연구

Reaction and Characterization of Silylene and its Precusor

분석과학 / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1994, v.7 no.3, pp.321-327
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초록

7, 7-dimethyl-1, 2, 3, 4, 5-pentaphenyl-7-silanorbornadiene을 과량의 methyl alcohol과 함께 저온 열분해반응을 시켰을 때 무색 침상 모양의 결정인 1-methoxydimethylsilyl-1, 2, 3, 4, 6-pentaphenylcyclohexa-2, 5-diene이 생성되었다. 그러나 7-silanorbornadiene을 ethyl alcohol과 함께 동시 광분해반응을 시켰을 때는 silylene이 생성되어 ethyl alcohol의 O-H 결합에 삽입 반응된 ethoxydimethylsilane이 생성되었다. 이와 같은 결과로 판단해 볼 때 7-silanorbornadiene의 저온 열분해반응과 광분해반응의 반응 메카니즘이 다르다는 사실을 알았다.

keywords
7, 7-dimethyl-1, 2, 3, 4, 5-pentaphenyl-7-silanorbornadiene, 1-methoxydimethyl-1, 2, 3, 4, 6-pentaphenylcyclohexa-2, 5-diene, ethoxydimethylsilane, pentaphenylbenzene, <TEX>$^1H$</TEX>-, <TEX>$^{14}C$</TEX>-NMR, MS, IR

Abstract

The mild thermal decomposition of 7, 7-dimethyl-1, 2, 3, 4, 5-pentaphenyl-7-silanorbornadiene with excess methyl alcohol proceeds to give 1-methoxydimethylsilyl-1, 2, 3, 4, 6-pentaphenylcyclohexa-2, 5-diene which is colorless needle crystal. The cophotolysis of the solution of 7-silanorbornadiene in the excess ethyl alcohol proceeds with loss of silylenes to give ethoxydimethylsilane which is insertion reaction product of silylene with O-H bond of ethyl alcohol. According to above results, it is presumed that the mechanism of photochemical decomposition and that of mild thermochemical decomposition of 7-silanorbornadiene are different.

keywords
7, 7-dimethyl-1, 2, 3, 4, 5-pentaphenyl-7-silanorbornadiene, 1-methoxydimethyl-1, 2, 3, 4, 6-pentaphenylcyclohexa-2, 5-diene, ethoxydimethylsilane, pentaphenylbenzene, <TEX>$^1H$</TEX>-, <TEX>$^{14}C$</TEX>-NMR, MS, IR


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