TABLE II.

Number of excess ions around a −48 charged duplex DNA in 100 mM RbCl or 10 mM SrCl₂ solutions, computed as $N_{+}={\tilde{F}}_{\mathit{ion}}\left(0\right)/Z^{+}$ from the new analysis scheme. Those numbers are very close to the values computed by integration over all space. For example, values computed at RISM-PSE3 for Rb⁺ are 36.77 (from the q = 0 limit) vs. 36.85 (from directly integrating the distribution).

	DNA/100 mM RbCl					DNA/10 mM SrCl2
System	ASAXS	MD	RISM-PSE3	RISM-PSE2	RISM-KH	ASAXS	RISM-PSE2	RISM-KH
Ncation	37 ± 2	37.95	36.77	35.08	30.16	20 ± 2	22.24	19.14