作者a093560629 (蝏)
看板Chemistry
标题[问题] 无机化学问题
时间Sat Jan 24 00:29:44 2015
1.
What are the hybridizations of the oxygen
and ruthenium in (Cl5Ru)2O,
where the Ru-O-Ru bond angle is 180 degree?
Also, explain the reasons for the large angle.
网路上查到的答案是sp混成, ≡O–
只是想说这样O不就带4键了?
还是应该是 ﹦O- -O﹦ 共振呢
+ +
2.
Oxidation addition of aryl or vinyl halide to Pd and insertion of
olefin to the resulting Pd-C(sp2) bond readily occur.
Predict all possible reaction products of Me2C=CHBr and H2C=CHCO2Me
in the presence of Pd(OAc)2 and PPh3 (sometimes with amine).
Pd(OAc)2 + PPh3 →Pd(0)作催化剂
画了反应机构,觉得是作insertion後还原脱去,
只是不知道卤素应该会被脱去还是+在某个位向上?
3.台大96年第23题
Which one of the following complexes
can most likely be able to isolate?
(A) W2(CO)10 (B) [W2(CO)10]- (C) [W2(CO)10]2-
(D) [W2(CO)10]+ (E) [W2(CO)10]2+
我选的答案是E 因为觉得如果要符合EAN rule W,W之间会有三键,会稳定可分离
但找到的答案是(C)
"本题判定方法为金属电荷愈负者,该错合物愈安定,故选(C)
并非由18e rule判定。"
想请问一个有机金属化合物的稳定度是该由金属间的键结,还是
由金属跟配位基间的键结决定
麻烦大家教导
谢谢
--
※ 发信站: 批踢踢实业坊(ptt.cc), 来自: 111.184.130.25
※ 文章网址: https://webptt.com/cn.aspx?n=bbs/Chemistry/M.1422030587.A.8F0.html