作者查詢 / coldfirecf
作者 coldfirecf 在 PTT [ Chemistry ] 看板的留言(推文), 共44則
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1F→:Fajans' rules03/06 16:52
1F推:第一題 答案錯了 你寫的立體組態也全錯 上至下aRR bSR03/06 00:53
2F→:cRS dSS03/06 00:53
3F→:第二題 請參閱有機課本 IR苯環mono o- p- m-取代signal03/06 00:54
4F→:不同 第三題 Fridel-Crafts Acylation的重點不是Cl03/06 00:55
5F→:是carboncation acid anhydride亦可反應 同樣請參閱任03/06 00:56
6F→:一有機課本03/06 00:56
9F推:第一題3小題依序應該是a,d,bc03/06 12:40
10F推:D的定義是數字最大chiral center上的OH朝右 又符合RR03/06 12:49
11F→:只有a了03/06 12:49
3F推:可以,之所以會拆開成R(r)和Y就是因為他們可以分開02/06 00:44
6F→:樓上說的沒錯 R單位改成m^-1 帶入正確的式子就可求出02/04 02:23
7F→:其實最難的地方再要想到計算機按出的0.1388=5/3602/04 02:24
1F推:有永久dipole moment才有rotational spectrum02/01 23:22
5F→:我查了你說的這本 mechanism沒錯吧? 寫的一樣啊01/30 10:12
2F推:我竟然認識發問者...真是太有趣了01/29 13:33
2F推:我竟然認識發問者...真是太有趣了01/29 13:33
2F推:喔原來那個RS指的是平面的左右 是我搞錯了 謝謝01/29 13:31
1F推:1.carbonyl group是sp2平面結構 所以可以從上或下攻擊01/29 00:29
3F→:如果產物有chiral center的話 這兩種打法會產生不同en01/29 00:30
4F→:就只是這樣啊 2.有差 不同的鹼會拔不同位置的α-H01/29 00:31
5F→:建議你可以找本課本來看 在enolate那邊都寫得很詳細01/29 00:32
6F→:3.反應物和產物都要符合 名詞解釋的部份 一樣建議找課01/29 00:33
7F→:本來看01/29 00:33
9F推:對 因為R=Rectus S=Sinister 拉丁文左右01/29 00:39