Figure 3
From: Effect of alkali metals on physical and spectroscopic properties of cellulose

DFT:B3LYP/6-31g(d,p) optimized structures of (a) Cellulose-1K; (b) Cellulose-1K2W; (c) Cellulose-2K; (d Cellulose-2K4W; (e) Cellulose-3K and (f) Cellulose-3K6W.