Compared with borates,carbonates,nitrates and phosphates,sulfates have been ignored as nonlinear optical (NLO) materials for a long time.Recently,researchers st
Theoretical calculations of Double Hanging Ring Molecule (DHRM) [(GnHn-1m)(GnHn-1m)] (G =C,Si,Ge;n =3,5,6,7,8;m =+1,-1,0,+1,+2) were performed via Gaussian 09 w