%chk=hydronium_gas.chk
%mem=24gb
%nprocshared=16
#p freq b3lyp/6-311++g(2d,2p) nosymm int=superfinegrid scf opt=(calcall,tight)

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1 1
 O                 -1.21906172    0.69568568    0.00000000
 H                 -0.26308899    0.60784413    0.00000000
 H                 -1.62097507    1.56750312    0.00000000
 H                 -1.77312110   -0.08829022    0.00000000