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本文探讨(CH_3Li)_4中键的作用,通过计算,发现(CH_3Li)_4分子的面甲基结构比顶甲基结构要稳定;指出Li—Li间的成键作用相当强,约为Li_2分子中键作用的40%左右,估计(CH_3Li)_4中的J_(7_(Li)-6_(Li))值约为1Hz。
In this paper, the role of (CH_3Li) _4 mid-bond is discussed. It is found that the (CH3_i) _4 molecular surface structure is more stable than that of the top methyl group. It is pointed out that the bonding between Li and Li is quite strong, The estimated value of J_ (7_ (Li) -6_ (Li)) in (CH_3Li) _4 is about 1 Hz.