Figure 1
From: Effect of alkali metals on physical and spectroscopic properties of cellulose

DFT:B3LYP/6-31g(d,p) optimized structures of (a) Cellulose; (b) Cellulose-1Li; (c) Cellulose-1Li2W; (d) Cellulose-2Li; (e) Cellulose-2Li4W; (f) Cellulose-3Li and (g) Cellulose-3Li6W.