CPHF Module - ikain not converged


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Forum Vet
The following input gives a complete frequency run.
start Sn10P2_1SiPBE0

memory stack 1200 mb heap 100 mb global 3650 mb noverify

charge 0

geometry units angstrom #noautoz noautosym
Sn                    0.26925119     1.31076216     1.34259267
Sn                    1.57791812    -0.72646357    -0.78694794
Sn                   -0.31621535    -1.76669855     1.51215804
Sn                   -2.60153299    -1.06867122    -0.61711425
Sn                   -2.09472757     1.92404765    -0.88224526
Sn                   -0.92864827     0.03956535    -2.89486175
Sn                   -2.39715028     0.52585329     1.90018541
Sn                   -0.32598565    -2.74446405    -1.43359287
Sn                    2.63361744    -0.31579865     2.21931902
Sn                    2.87506804     2.35376327     0.01632841
P                     3.89433998    -0.01255075     0.01213677
P                     0.58277208     1.63770465    -1.28199310
end

basis spherical
* library def2-tzvpp
end

ecp
Sn library def2-ecp
end

dft
vectors input atomic output dft.movecs
xc pbe0
direct grid fine
mult 1
smear
convergence ncydp 0 dampon 1d99 dampoff 1d-7 damp 45 energy 1d-9
iterations 750
end
driver
tight
end
set quickguess t
task dft optimize


task dft freq