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ÎÊÌâÀ´×ÔÓÚÕâ¸öÍøÒ³£º http://www.ch.ic.ac.uk/robb/www_ ... enzene_handout.html Õâ¸öÍøÒ³Õ¹Ê¾ÁËÒ»¸öʹÓà CASSCF ¼ÆËã The Photochemical Isomerisation of Benzene to Benzvalene ÆäÖÐÓйسõʼ¹ìµÀÑ¡ÔñµÄÎÊÌâÎÒ¿´²»¶®£¬Çë¸÷λ´óϺ¸ø½²½²£º The CASSCF computation that we shall run will include 6 electrons in the 6 p¹ molecular orbitals. From the geometry used previously it can be seen that the p¹ M.O.¡¯s are formed from pz atomic orbitals i.e. benzene is in the xy plane so we need the pz A.O.¡¯. .......From the RHF calculation examination of the M.O.¡¯s gives the p¹ orbitals as 17,20,21,22,23,24. Only orbital 17 is not included in the active space. We need to swap orbitals 17 and 19 to get the correct active space. ÇëÎÊÉÏÃæËùÌáµ½µÄ pz A.O.' ÊÇÈçºÎÓë orbital 17 ¹ÒÆð¹³À´µÄ£¬ÎÒ¿´ÁËÊä³öÎļþ£¬Ã»Óз¢ÏÖʲôÏßË÷¡£ ¶àл¸÷λµÄ¹Ø×¢£¬Èç¹û¿ÉÄÜ£¬Çë¸øÎÒһЩÌáʾ£¬¶àл£¬¶àл£¡ |
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