Why in DFT or HF calculation of very small molecules am I facing error 2070 at my gaussain 09W?

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Vikramaditya Talapunur

# opt freq=noraman hf/6-31g geom=connectivity

Use this in the route section.

Mudar Ahmed Abdulsattar

Dear Nayim Sepay: There is nothing wrong with your input, the only mistake is in high memory which certainly exceeds the memory available in your machine. Change the first line in your program to %mem=100Mb and everything will be just fine.

Nayim Sepay

Thank you every one for kind reply. Actual problem was the 'memory problem' and now it is running smoothly.

Can anybody help me to learn DFT from very basic?