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众所周知,群论处理化学问题的关键一步是使用约化公式将可约表示分解为不可约表示: α_j=1/g∑x(R)x_j(R)(1)式中α_j表示第j个不可约表示出现的次数;g是群的阶数;x(R)是对称操作R的可约表示特征标;x_j(R)是对称操作R的第j个不可约表示的特征标;求和号∑是对所有的对称操作进行的关于此式的推导,含义
It is well known that the key step in the group theory dealing with chemical problems is to decompose the reducible representation into an irreducible representation using the reduction formula: α_j = 1 / gΣx (R) x_j (1) where α_j denotes the jth Represents the number of occurrences; g is the order of the group; x (R) is the approximable representation of the symmetry operation R; xj (R) is the signature of the jth irreducible representation of the symmetry operation R; Σ is the derivation of meaning for all symmetrical operations