[普化] 一題清大

[cheyu (小天使加我好友耶^^)]

which of following statement is not ture of diborane?
(A)it is an electron-deficient compound
(B)it has two three center bonds
(C)it is highly reactive oxidizing agent
(D)it is a Lewis acid
(E)it has two different types of hydrogen atom
感謝啦^^

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推 ldce:我認為是B
推 hurryken:是B吧 二個原子哪來的三中心鑑
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作者: riance (小羊學材料) 看板: TransBioChem
標題: Re: [普化] 一題清大
時間: Sun Jun  5 16:40:22 2005

※ 引述《cheyu (小天使加我好友耶^^)》之銘言：
: which of following statement is not ture of diborane?
: (A)it is an electron-deficient compound
: (B)it has two three center bonds
: (C)it is highly reactive oxidizing agent
: (D)it is a Lewis acid
: (E)it has two different types of hydrogen atom
: 感謝啦^^
這一題我沒記錯是清大轉學考題
我準備研究所時候有做過 特地問過老師
B2H6 有兩個三中心鍵 也因為三中心鍵的關係 不再是電子缺少者
其實e也是有點矛盾 應該說是有兩種鍵結 但是氫原子 都是一樣的
而a跟e老師覺得a是較好的選擇
所以答案是A




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