CCL: delta-scf and TDDFT

["Ding Xunlei" <dxl##ustc.edu.cn>]

 Sent to CCL by: "Ding Xunlei" [dxl##ustc.edu.cn]
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 Dear chemistry,
 http://www.scm.com/adflist/0294.html
 There is a discussion about the delta-scf and TDDFT.
 According to it, I think that the excited energy of the singlets obtained by
 TDDFT need not correction using the formula:
 E (singulet) = 2 E (s+t) - E (triplet). Am I right?
 Can anybody give a a little more explanation?　　
 Yours sincerely,
 Ding Xunlei
 2005-09-19
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