# Symmetry Labels

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Can anyone tell me what T2g means. T is triply degenerate and g is "even" so what is 2?

Also, what do the numbers in A1 and B1 and B2 mean.

Also what do the letter stand for? If T is for triply degenerate then what does E for if it means doubly degenerate as doubly clearly doesn't start with e.

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One more thing can someone give a good reference for generating character tables. The math behind it and all that good stuff.

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Hi there, try group theory. A good book for this is in introduction to molecular symmetry and group theory by A.vincent. It should answer most of your questions above, or simply punch group theory into google.

good luck.

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Can anyone tell me what T2g means. T is triply degenerate and g is "even" so what is 2?

Also, what do the numbers in A1 and B1 and B2 mean.

Also what do the letter stand for? If T is for triply degenerate then what does E for if it means doubly degenerate as doubly clearly doesn't start with e.

Merged post follows:

Consecutive posts merged

One more thing can someone give a good reference for generating character tables. The math behind it and all that good stuff.

here is one correction in your first line- g is used when the complex is octahedral and it has no relation with even or odd figure.... try a book group theory by sutton ..

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