●a Chapter VI Interaction between Molecules,2 For similar molecules,ifa1=02=0,1=μ2=μ,then En=-202/(4e0)2R 2021821 Chemistry Departme nt of Fudan UniversityPhysical ChemistryI Chapter VI Interaction between Molecules 2021/8/21 Chemistry Department of Fudan University 5 For similar molecules, if a1=a2=a, 1=2=, then 2 2 6 p 0 E R = −2 / 4 a  （ ）