[問題] meso compound
想請問一下，六碳環類的掌性要如何判斷
以取代基都為Br為例，
Cis-1,2-dibromo: achiral - 常溫下可旋轉
Tran-1,2-dibromo: chiral - 不可旋轉
Cis-1,3-dibromo: achiral - 對稱面(??)
Trans-1,3-dibromo: chiral - 不可旋轉(??)
Cis-1,4-dibromo: _____ - _____
Trans-1,4-dibromo: achiral - ______
問號是自以為是的理由 (哈哈)
有時候看對稱面，有時候看旋轉
有沒有較精準的判斷方式
另外Trans-4-chlorohexanol是meso的理由是???
Cis-4-chlorohexanol是chiral or achiral??
在此先感謝高手了!!!
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 114.27.162.220
※ 編輯: frankwu0507 來自: 114.27.162.220 (09/27 12:18)
→
09/27 12:57, , 1F
09/27 12:57, 1F
→
09/27 12:58, , 2F
09/27 12:58, 2F
→
09/27 12:58, , 3F
09/27 12:58, 3F
※ 編輯: frankwu0507 來自: 114.27.162.220 (09/27 14:41)
推
09/27 20:30, , 4F
09/27 20:30, 4F
→
09/27 20:31, , 5F
09/27 20:31, 5F
→
09/27 21:49, , 6F
09/27 21:49, 6F
→
09/27 21:49, , 7F
09/27 21:49, 7F
→
09/27 21:49, , 8F
09/27 21:49, 8F
→
09/27 23:51, , 9F
09/27 23:51, 9F
推
09/28 00:53, , 10F
09/28 00:53, 10F
→
09/28 01:59, , 11F
09/28 01:59, 11F
※ 編輯: frankwu0507 來自: 114.40.149.74 (09/28 02:05)
推
09/28 02:11, , 12F
09/28 02:11, 12F
→
09/28 02:12, , 13F
09/28 02:12, 13F
→
09/28 04:49, , 14F
09/28 04:49, 14F
→
09/28 09:48, , 15F
09/28 09:48, 15F
→
09/28 09:50, , 16F
09/28 09:50, 16F
推
09/28 16:57, , 17F
09/28 16:57, 17F
→
09/28 16:58, , 18F
09/28 16:58, 18F