…When heated with sodium in ether, it becomes methylacetylene. Compounds with the general formula R 1 R 2 C=C=CR 3 R 4 (allene being a typical example) are called allene compounds, and this C=C=C bond is specifically called an allene bond. As can be expected from the tetrahedral structure of the carbon atoms, R 1 , R 2 and R 3 , R 4 are not on the same plane, so optical isomers exist. … *Some of the terminology that refers to "allene type compounds" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…エーテル中でナトリウムと熱するとメチルアセチレンになる。 R1R2C=C=CR3R4の一般式で表される化合物(アレンがその代表)をアレン型化合物といい,このC=C=C形の結合をとくにアレン結合という。炭素原子の正四面体構造から考えられるように,R1,R2とR3,R4とは同一平面上にないので光学異性体が存在する。… ※「アレン型化合物」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
A method of obtaining an image using radiation. Fo...
…A ceremony in which water is poured on the top o...
1861‐1933 Chinese politician. Born in Xilin, Guang...
1912‐81 Australian painter. Born while his parents...
1888‐1980 The second president of the Democratic R...
[Things related to the weather and agriculture] R...
A general term for equipment that temporarily stor...
This refers to urban riots that occurred in China...
... In addition to those that grow primarily in t...
A custom that was practiced mainly from the end of...
…This law was enacted as a systematic law that de...
1902-1970 A film actor from the Taisho and Showa ...
...However, after further investigation, it becam...
The capital of Colombia and the department of Cund...
A diving apparatus consisting of an air tank fill...