Potential curve for the d 3Pi  state of NaK, with respect to minumum of the X 1sigma+ ground state. 
Internuclear distance in Angstrom, Energy in cm-1.

R(A)       V(R) for d3Pi  (hybridRKR/ab initio)

2.8929	25127.9799
2.9287	24709.2833
2.9645	24323.71669
3.0003	23968.65862
3.0361	23641.69504
3.0719	23340.60294
3.1077	23063.3352
3.1435	22808.00668
3.1793	22572.88141
3.2151	22356.36078
3.25096	22156.62922
3.25469	22136.80754
3.25896	22114.32165
3.26375	22089.34032
3.26904	22062.02499
3.27484	22032.52973
3.28112	22001.00128
3.28788	21967.579
3.29511	21932.39491
3.3028	21895.57369
3.31097	21857.23265
3.3196	21817.48174
3.32869	21776.42358
3.33826	21734.15341
3.34831	21690.75914
3.35884	21646.32131
3.36988	21600.91312
3.38143	21554.60042
3.39351	21507.44168
3.40616	21459.48804
3.41939	21410.7833
3.43324	21361.36386
3.44775	21311.25881
3.46297	21260.48987
3.47894	21209.07141
3.49573	21157.01045
3.51342	21104.30664
3.5321	21050.9523
3.55186	20996.93238
3.57283	20942.22449
3.59516	20886.79887
3.61905	20830.61842
3.64476	20773.63869
3.67262	20715.80786
3.70311	20657.06677
3.73693	20597.3489
3.77511	20536.5804
3.81938	20474.68002
3.87286	20411.5592
3.94255	20347.12201
4.05284	20281.26516
4.08927	20267.91383
4.14449	20254.50039
4.22488	20247.75
4.31129	20254.50039
4.37845	20267.91383
4.42681	20281.26516
4.59627	20347.12201
4.72437	20411.5592
4.8355	20474.68002
4.93668	20536.5804
5.03104	20597.3489
5.12035	20657.06677
5.20568	20715.80786
5.28777	20773.63869
5.36716	20830.61842
5.44425	20886.79887
5.51938	20942.22449
5.59283	20996.93238
5.66487	21050.9523
5.73573	21104.30664
5.80562	21157.01045
5.87476	21209.07141
5.94335	21260.48987
6.01163	21311.25881
6.07981	21361.36386
6.14815	21410.7833
6.21689	21459.48804
6.28632	21507.44168
6.35674	21554.60042
6.42849	21600.91312
6.50193	21646.32131
6.57748	21690.75914
6.65559	21734.15341
6.73681	21776.42358
6.82173	21817.48174
6.98514	21895.69142
7.09097	21935.3646
7.19681	21970.72708
7.30264	22002.7727
7.40848	22030.13637
7.51431	22055.35215
7.62015	22076.51712
7.72598	22095.93505
7.83182	22112.6003
7.93766	22127.27689
8.04349	22140.84967
8.14933	22151.7527
8.25516	22161.88713
8.361		22171.24479
8.46683	22178.63113
8.57267	22185.51792
8.6785	22191.97325
8.78434	22197.34977
8.89017	22201.94601
8.99601	22206.26851
9.10184	22210.35559
9.20768	22213.8001
9.31352	22216.67597
9.41935	22219.31028
9.52519	22221.39975
9.63102	22223.32535
9.73686	22225.02454
9.84269	22226.54234
9.94853	22227.84134
10.0543	22229.05169
10.1602	22230.18362
10.266	22231.20254
10.3718	22232.1431
10.4777	22232.95175
10.5835	22233.69798
10.6893	22234.32542
10.7952	22234.91641
10.901	22235.40048
11.0068	22235.86158
11.2185	22236.52501
11.3243	22236.75868
11.4302	22236.98412
11.6418	22237.3825
11.7477	22237.5951
11.8535	22237.80261
12.4885	22238.76654
12.7002	22238.97209
12.806	22239.08175
12.9119	22239.18878
13.1235	22239.37894
13.2294	22239.47542
13.4411	22239.65672
13.5469	22239.75033
13.6527	22239.84279
13.7586	22239.93431
13.8644	22240.02508
13.9702	22240.11509
14.0761	22240.18047
14.1819	22240.23185
14.2877	22240.28449
14.3936	22240.33504
14.4994	22240.38541
14.6052	22240.4356
14.7111	22240.48626
14.8169	22240.53601
14.9227	22240.58571
15.0286	22240.62992
15.1344	22240.65952
15.2403	22240.68902
15.3461	22240.71854
15.4519	22240.74817
15.5578	22240.77755
15.6636	22240.80706
15.7694	22240.83638
15.8753	22240.86583
15.9811	22240.8952
16.0869	22240.91526