Table 4.

Ion-oxygen distances and coordination numbers of Na⁺ in water

	Na1	Na2	Na3	Na4	Ref. 71	Ref 72	Ref 73
IOD (Å)	2.25	2.42	2.25	2.25	2.50	2.35 – 2.38	2.38
N(r)	5.6	5.90	5.60	5.90	6.20	NA	6.00

The table shows the position of the first peak of the g(r) (IOD) and the corresponding coordination number at that distance (N(r)) obtained from simulations Na1, Na2, Na3 and Na4. A qualitative comparison is made with data presented in references 74 (Jensen and Jorgensen), 75 (Joung et al.) and 76 (Gladich et al.).