CCL:G: Raman intensity Vs Static polarizability

 Sent to CCL by: favaro [laurent.favaro _]
 For sure.
 Units are expressive : (Angstroms)exp(4)/ Atomic Mass Unit
 should not be compared with experimental intensity units.
 Despite, trends, for similar compounds, are very interesting.
 Even experiments are very difficult to compare.
 Absolute intensity measures are challenging.
 Best regards
 zborowsk]|[ a écrit :
 Sent to CCL by: zborowsk**
 Sent to CCL by: favaro [laurent.favaro[#]]
 Do you mean that G03 does not calculate Raman Cross-section ?
 I believe you are wrong.
 Gaussian calculates Raman Activities, not Raman Intensities, and obviously
 it is not the same. Raman Activities cannot be compared directly with
 experimental Raman spectra.
 zborowsk]*[ a écrit :
 Sent to CCL by: zborowsk|,|
 Dear Mi Yang
 I want to warn you if you are Gaussian user.
 Gaussian does not calculate  Raman Intensities
 Sent to CCL by: favaro [laurent.favaro|*|]
  Raman intensity is related to the square
  of the derivative of polarizability with respect
  to the normal coordinates of the vibrationnal mode.
  Best regards,
  Dr Favaro
  Mi Yang a écrit :
  Sent to CCL by: "Mi  Yang" [miyang3790*]
  Dear CCL users,
  I need some comments or refs about my problem. I am studying the
 interaction of a metal with a boron cluster. I found the large increase
 of static polarizability and hyperpolarizability upon interaction of
 metal atom to that boron cluster. I also calculated the Raman spectrum
 which also showed high increase of intensity in metal boron cluster. I
 read some indirect relationship b/m these two properties but now in
 of my best efforts I could not find the direct relationship between
 Static polarizability and Raman intensity. Anybody who knows any ref or
 comments about this relationship (Static
 polarizability/hyperpolarizability and Raman intensity) would be highly