CCL:G: How to calculate ionization potential, electron affinity

 Sent to CCL by: "Brad Rose" [brose/a\live.com]
A nice discussion of this can be found in Organic Electronics, 2011, 12, 394-403. I have just used the values for the HOMO for the ionization potential and LUMO for electron affinity when getting these values for pi-conjugated hydrocarbons. These values are given in the output for a normal calculation. The HOMO is the last occupied eigenvalue and the LUMO is the first unoccupied eigenvalue. 
 Hope that helps,
 Brad Rose
-----Original Message----- 
 From: mohamed med m.maatallah_+_ucam.ac.ma
 
 Sent: Wednesday, January 11, 2012 3:10 AM
To: Rose, Bradley Subject: CCL:G: How to calculate ionization potential, electron affinity 
 Sent to CCL by: "mohamed  med" [m.maatallah(~)ucam.ac.ma]
dear collegues I am wondering How to calculate ionization potential, electron affinity and electro negativity values from Gaussian output files and suggest me the desired key word in order to calculate these values from output file. 
 Thanks in advancehttp://www.ccl.net/cgi-bin/ccl/send_ccl_messagehttp-:-//www.ccl.net/chemistry/sub_unsub.shtmlhttp-:-//www.ccl.net/spammers.txt