POTASSIUM BASIS SETS FOR THE CRYSTAL PROGRAM
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TCM CRYSTAL basis set library: https://vallico.net/mike_towler/crystal.html

Title:    potassium
Author:   unknown
When:     unknown
Comments: optimized in KCl (K +1)
          extra d-shell in K2O essential for accurate C44 elastic constant
Use:      KCl (can add single d function at 0.39)- Ref. 2, 3
          K2O (extra d shell - see below) - Ref. 4
          KCuF3 - Ref. 1
          KNiF3 - Ref. 5,7
          K2NiF4 - Ref. 6
          KMnF3 - Ref. 7 
          KCoF3 - Ref. 7
          KFeF3 - Ref. 7
Refs:    (1) Magnetic interactions and the cooperative Jahn-Teller effect 
             in KCuF3, MD Towler R Dovesi VR Saunders PRB 52 p.5375 (1995)
         (2) M Prencipe et al. PRB 51 p.3391 (1995)
         (3) R Dovesi et al. Phil Trans Roy Soc London A 341 p203 (1992)
         (4) R Dovesi et al. Chem. Phys. 156 p.11 (1991)
         (5) Electronic and magnetic structure of KNiF3 perovskite,
             JM Ricart et al. PRB 52 p.2381 (1995)
         (6) R Dovesi et al. J Phys: Cond Mat 7 p.1 (1995)
         (7) R Dovesi and FF Fava, Faraday Discussions, 106, p.173 (1997)

19 5 (or 6)
0 0 8 2.0 1.0
 172500.0    0.000220
  24320.0    0.00192
   5140.0    0.01109
   1343.9    0.04992
    404.5    0.1702
    139.4    0.3679
     54.39   0.4036
     22.71   0.1459
0 1 6 8.0 1.0
    402.0   -0.00603 0.00841
     93.5   -0.0805  0.0602
     30.75  -0.1094  0.2117
     11.92   0.258   0.3726
      5.167  0.684   0.4022
      1.582  0.399   0.186
0 1 5 8.0 1.0
     17.35  -0.0074 -0.0321
      7.55  -0.129  -0.062
      2.939 -0.6834  0.1691
      1.19   1.08    1.500
      0.674  1.03    1.060
0 1 1 0.0 1.0
      0.389  1.0     1.0
0 1 1 0.0 1.0
      0.216  1.0     1.0
Extra d shell from reference 4
0 3 3 0.0 1.0 
      3.94   0.160 
      1.072  0.313
      0.394  0.406