Theory

Experiment

ξ

−E^MAOT

−E^Sakho

−E^e

−E^c

−E^d

−E^Slater

−E^f

−E^exp

−E^a,b

H⁻

0.6899

1.0098

1.1406

1.0164

0.9745

He

1.6899

5.7951

5.8872

5.8071

5.8078

5.7784

5.7799

5.7233

5.8063

5.8071^a

Li⁺

2.6899

14.5063

14.6401

14.5593

14.5615

14.5321

14.6049

14.4726

14.4645

14.5593^b

Be²⁺

3.6899

27.2554

27.3907

27.3113

27.3150

27.2844

27.4260

27.2224

27.2238

27.3120^b

B³⁺

4.6899

43.9813

44.1403

44.0616

44.0690

44.0352

44.2542

43.9720

43.9815

44.0683^b

C⁴⁺

5.6899

64.7582

64.8904

64.8125

64.8228

64.7860

65.0896

64.7221

64.7449

64.8294^b

N⁵⁺

6.6899

89.5054

89.6403

89.5624

89.5779

89.5367

89.9314

89.4720

89.5999^b

O⁶⁺

7.6899

118.3513

118.3908

118.2886

118.3342

118.2872

118.7803

118.2952

118.3834^b

F⁷⁺

8.6899

151.0853

151.1403

151.0631

151.0903

151.0374

151.6357

150.9721

151.2366^b

Ne⁸⁺

9.6899

187.9563

187.8903

187.8840

187.8477

187.7874

188.4974

187.7221

188.0050^b

Na⁹⁺

10.6899

228.6006

228.6395

228.6056

228.5373

228.9797

228.4719

Mg¹⁰⁺

11.6899

273.4513

273.3906

273.3648

273.2877

273.7801

273.2222

Al¹¹⁺

12.6899

322.0992

322.1407

322.1245

322.0378

322.5802

321.9724

Si¹²⁺

13.6899

374.9353

374.8907

374.8855

374.7878

375.3802

374.7224

P¹³⁺

14.6899

431.4453

S¹⁴⁺

15.6899

492.1952

Cl¹⁵⁺

16.6899

556.9453

Ar¹⁶⁺

17.6899

625.6953

K¹⁷⁺

18.6899

698.4452

Ca¹⁸⁺

19.6899

775.1954