small Ni cluster convergence


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Forum Vet
Try the following input
start nininini

charge 0

geometry units angstroms print xyz
Ni        -0.04196       -0.13887       -0.06789
Ni        -0.01871       -0.01555        2.40253
Ni         0.62215       -1.76237        1.00667
Ni        -1.59185       -1.03913        0.90612
Ni        -1.88742        1.21719        0.97918
Ni         0.67365        1.71725        1.09000
Ni         2.15725       -0.01555        1.05771
Ni        -0.60253       -1.97149       -0.97491
Ni        -1.84449       -0.03822       -0.95520
Ni        -0.67889        1.90691       -1.09847
Ni         1.71989        1.21719       -1.25025
Ni         1.52236       -1.03913       -1.01856
Ni        -0.02947       -0.03822       -2.07693
end

basis spherical
    Ni library Def2-QZVPP
end

Driver
  Loose
end

dft
    MULT 1
    iterations 2000
    xc xpbe96 cpbe96
    direct
    convergence lshift 0.18
    tolerances tight
end

set quickguess t

task dft optimize