Hello, <div><br></div><div>1) I am trying to compute the uv-spectrum of a coumarin (using TDDFPT) but I have found the following warning that makes me doubt about my results:<div><br></div><div><br></div><div><div> Lowest Eigenvalues of the unoccupied subspace spin 1</div>
<div> -----------------------------------------------------</div><div> WARNING : did not converge in ot_eigensolver</div><div> number of iterations 3000 exceeded maximum</div><div> current gradient / target gradient 0.00007879514188995091 / 0.00001</div>
<div> -0.11296455 -0.05366109 -0.04693513 0.01409883</div><div> 0.02124071</div></div><div><br></div><div><br></div><div>I have increased to 10 times the default number of iterations (using MAX_ITER_LUMO 3000) but still not converging. I don't understand how important is this for the computation of the excited states, why is not converging, and what other keywords can I use to make it converge.</div>
<div><br></div><div>2) Anyway, I got this result (that I do not trust because of the warning):</div><div><br></div><div><br></div><div><div> excited state : 1 2.115067</div><div><br></div><div> 48 -> 49 0.993 0.987</div>
<div> 47 -> 49 0.115 1.000</div><div><br></div><div> excited state : 2 3.128501</div><div><br></div><div> 48 -> 49 0.095 0.009</div>
<div> 47 -> 49 0.774 0.608</div><div> 46 -> 49 0.605 0.976</div><div> 46 -> 51 0.052 0.979</div><div>
<br></div><div> excited state : 3 3.653467</div><div><br></div><div> 48 -> 49 0.059 0.004</div><div> 47 -> 49 0.578 0.338</div>
<div> 47 -> 51 0.112 0.350</div><div> 46 -> 49 0.761 0.931</div><div> 46 -> 51 0.083 0.938</div><div>
46 -> 52 0.055 0.941</div><div> 45 -> 49 0.086 0.951</div><div> 44 -> 51 0.056 0.955</div></div><div>
<br></div><div><br></div><div>I would like to know which is the UV intensity of each excited state which I can use for constructing the UV-Spectrum.</div><div><br></div><div>Thanks to everybody in advance,</div><div><br></div>
<div>Pablo</div><div><br></div><div>PS: I am attaching the input, output and restart files inside a tar/bzip2 file.</div></div>