The absorption bands centered at
636, 968, 1053, 1094 and 1138cm−1 correspond to the symmetric
and asymmetric (v1 − v3) modes of PO4 groups. In the lower
wavenumberregion, the absorptions at 469, 501, 549 and 577cm−1
are attributed to the symmetric and asymmetric (v2 − v4) bending
modesofP–Obonds [28].
那位虫友知道V1，V2，V3，V4,是什么？望不吝赐教！ |
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