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                            | Forum RegularThreads 54 Posts 246
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		                        | 7:42:34 PM PDT - Sat, Sep 1st 2018 |  |  
		                        | If NWCHEM has not implemented this function, GAMESS has a high-quality method in this area,  i.e., employing MCSCF to search a conical intersection point, while simultaneously incorporating the nonadiabatic coupling between two, perhaps more, electronic states; thus, based on it some new or historically well-informed  phenomena, e.g., for its zwitterionic singlet excited states, why a twisted olefin holding two different biradical centers can exhibit "sudden polarization effect"  might be understood. 
 I wish you give us a physical example for this.
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	| Edited On 8:23:04 PM PDT - Tue, Oct 9th 2018 by Xiongyan21 |  | 
 
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