Dear all,

I have run the same calculation specifying the atomic position with "crystal" 
and with "angstrom", and I got two different absolute energies. Is this correct?

Also, the system is a molecular crystal with some ligands coordinated to 
Ytrium. I find that I have to go to very high values of ecutwfc to converge the 
absolute energy. I'm talking about 100 or 110 Ry approximately. Is this a known 
feature? Does working with such high values of ecutwfc introduce some biases in 
the calculations?

Best regards


========================

Dr. Daniel Reta,
Post-doctoral Research Associate,
Computational Chemistry, School of Chemistry
University of Manchester

Email: [email protected]

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