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Table 3

Factor group analysis and selection rules for calcite (after Decius & Hexter 1977).

D3d A1g A2g Eg A1u A2u Eu

Ca 2b 0 0 0 1 1 2
C 2a 0 1 1 0 1 1
O 6e 1 2 3 1 2 3

N T 1 3 4 2 4 6
T A 0 1 1
T 0 1 1 1 1 2
R 0 1 1 0 1 1
Γvib 1 1 2 1 1 2

Activity Raman Raman IR IR

Notes.NT = Total number of unit cell modes; TA = acoustic branch modes; T = optic branch translatory modes; R = librational modes; Γvib = internal modes.

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