Linus Pauling Institute of Science and Medicine, 440 Page Mill Road, Palo Alto, CA 94306.
Proc Natl Acad Sci U S A. 1987 Jul;84(14):4754-6. doi: 10.1073/pnas.84.14.4754.
In formation of an intermetallic compound from the elementary metals there is usually a contraction in volume. Electron transfer leading to the charge states M(+) and M(-) with increase in valence and decrease in volume explains the more than 2-fold range in contraction for different compounds in the same binary system. In a more thorough analysis, the better packing of atoms of different sizes also needs to be considered.
从单质金属生成金属间化合物通常会发生体积收缩。电子转移导致电荷态 M(+)和 M(-)的形成,伴随着价态的增加和体积的减小,可以解释在同一二元体系中不同化合物的收缩幅度超过两倍的原因。在更彻底的分析中,还需要考虑不同大小原子的更好的堆积。