TY  - JOUR 
T1  - Evaluation of group electronegativities and hardness (softness) of group 14 elements and containing functional groups through density functional theory and correlation with NMR spectra data
JO  - Eclética Química
A1  - Vivas-Reyes, R.
A1  - Aria, A.
SN  - 0100-4670
UL  - 10.1590/S0100-46702008000300010
VL  - 33 
Y1  - 2008
PB  - Brasil 
ER  -