41.对称操作和对称元素 Sn与I关系 S1=12 C++ S5 3 C+ 负号代表逆操作,即沿原来的操作退回去的操作 习题P216:1,3,4.64.1. 对称操作和对称元素 Sn与In关系 习题P216:1,3,4,6 I S C S I C i I S C i S I C I S S I I S C i S I C I S S I i I S i S I = = + = = + = = + = = + = = = = + = = + = = = = = = = = − − − − − − − − − − − − 6 3 3 6 3 3 5 1 0 5 5 1 0 5 4 4 4 4 3 6 3 3 6 3 2 1 2 1 1 2 1 2      负号代表逆操作，即沿原来的操作退回去的操作