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

R    V(R) for D 1Pi  

2.5	31054.5297  
2.6	28717.7534  
2.7	26933.4730  
2.8	25540.8459  
2.9	24432.7722  
3.0	23536.9031  
3.1	22803.7863  
3.2	22199.2663  
3.3	21699.4833  
3.4	21287.5048  
3.5	20951.0156  
3.6	20680.7161  
3.7	20469.2143  
3.8	20310.2728  
3.9	20198.3148  
4.00  20128.1238
4.02  20118.6537
4.04  20110.6136
4.08  20098.6674
4.10  20094.6832
4.12  20091.9735
4.14  20090.4998
4.16  20090.2240
4.18  20091.1080
4.20  20093.1144
4.22  20096.2064
4.24  20100.3478
4.26  20105.5037
4.28  20111.6399
4.30  20118.7235
4.4	20167.2508  
4.5	20234.9136  
4.6	20318.1929  
4.7	20413.7015  
4.8	20518.1852  
4.9	20628.5940  
5.0	20742.1603  
5.1	20856.4545  
5.2	20969.4084  
5.3	21079.3161  
5.4	21184.8186  
5.5	21284.8814  
5.6	21378.7670  
5.7	21466.0049  
5.8	21546.3596  
5.9	21619.7959  
6.0	21686.4437  
6.1	21746.5624  
6.2	21800.5072  
6.3	21848.6980  
6.4	21891.5924  
6.5	21929.6630  
6.6	21963.3797  
6.7	21993.1965  
6.8	22019.5418  
6.9	22042.8130  
7.0	22063.3732  
7.1	22081.5501  
7.2	22097.6367  
7.3	22111.8930  
7.4	22124.5480  
7.5	22135.8027  
7.6	22145.8325  
7.7	22154.7901  
7.8	22162.8082  
7.9	22170.0018  
8.0	22176.4707  
8.1	22182.3012  
8.2	22187.5681  
8.3	22192.3362  
8.4	22196.6619  
8.5	22200.5941  
8.6	22204.1752  
8.7	22207.4424  
8.8	22210.4280  
8.9	22213.1606  
9.0	22215.6651  
9.1	22217.9635  
9.2	22220.0753  
9.3	22222.0176  
9.4	22223.8059  
9.5	22225.4538  
9.6	22226.9736  
9.7	22228.3763  
9.8	22229.6718  
9.9	22230.8690  
10.0	22231.9761  
10.1	22233.0002  
10.2	22233.9483  
10.3	22234.8262  
10.4	22235.6396  
10.5	22236.3935  
10.6	22237.0926  
10.7	22237.7412  
10.8	22238.3431  
10.9	22238.9019  
11.0	22239.4210  
11.1	22239.9033  
11.2	22240.3516  
11.3	22240.7686  
11.4	22241.1566  
11.5	22241.5177  
11.6	22241.8540  
11.7	22242.1673  
11.8	22242.4593  
11.9	22242.7316  
12.0	22242.9857  
12.1	22243.2229  
12.2	22243.4444  
12.3	22243.6514  
12.4	22243.8449  
12.5	22244.0259  
12.6	22244.1953  
12.7	22244.3539  
12.8	22244.5025  
12.9	22244.6418  
13.0	22244.7725  
13.1	22244.8951  
13.2	22245.0102  
13.3	22245.1184  
13.4	22245.2201  
13.5	22245.3157  
13.6	22245.4057  
13.7	22245.4904  
13.8	22245.5703  
13.9	22245.6455  
14.0	22245.7165  
14.1	22245.7834  
14.2	22245.8467  
14.3	22245.9064  
14.4	22245.9629  
14.5	22246.0162  
14.6	22246.0668  
14.7	22246.1146  
14.8	22246.1599  
14.9	22246.2028  
15.0	22246.2435  
15.1	22246.2821  
15.2	22246.3187  
15.3	22246.3535  
15.4	22246.3866  
15.5	22246.4180  
15.6	22246.4478  
15.7	22246.4762  
15.8	22246.5033  
15.9	22246.5290  
16.0	22246.5535  
17.0	22246.7446  
18.0	22246.8671  
19.0	22246.9483  
20.0	22247.0035  
21.0	22247.0419  
22.0	22247.0692  
23.0	22247.0889  
24.0	22247.1032  
25.0 22247.1138