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机译:
Fac Univ Notre Dame Paix, Grp Chim Phys, Lab Chim Theor Appl, B-5000 Namur, Belgium;
Univ Modena & Reggio Emilia, Dipartimento Chim, I-41100 Modena, Italy;
HELLMANN-FEYNMAN APPROXIMATION; VIBRATIONAL CIRCULAR-DICHROISM; MOMENT GEOMETRIC DERIVATIVES; ACTIVITY SPECTRA; BASIS-SETS; SHIELDING TENSORS; RAMAN; MOLECULES; INTENSITIES; CHIRALITY;