Figure 1.11

Figure 1.11 features selected pi-MOs of linear pi-systems.

butad01.mol

Input file for buta-1,3-diene:

#p b3lyp/6-31g(d) int=ultrafine scf=tight pop=full gfinput 

butad01, B3LYP/6-31G(d) int=ultrafine opt C2h      

0 1      
C,0,-0.0241742772,0.,-0.0413081428
C,0,-0.0023256145,0.,1.2990715346
C,0,1.2147611798,0.,2.1009284654
C,0,1.2366098425,0.,3.4413081428
H,0,-0.9558976599,0.,-0.5988571047
H,0,0.8935508669,0.,-0.6255641652
H,0,-0.943110545,0.,1.850476763
H,0,2.1683332252,0.,3.9988571047
H,0,0.3188846984,0.,4.0255641652
H,0,2.1555461103,0.,1.549523237


pentad01.mol

Input file for penta-2,4-dienyl cation:

#p b3lyp/6-31g(d) int=ultrafine scf=tight pop=full gfinput  

pentad01, B3LYP/6-31G(d) int=ultrafine opt C2v     

+1 1       
H,0,0.,0.,-0.0188553018
C,0,0.,0.,1.0716687446
C,0,1.2490306127,0.,1.7307701146
C,0,-1.2490306127,0.,1.7307701146
C,0,2.4073623799,0.,1.0086702364
C,0,-2.4073623799,0.,1.0086702364
H,0,3.3792819693,0.,1.4946652916
H,0,-3.3792819693,0.,1.4946652916
H,0,2.4016613805,0.,-0.0792232083
H,0,-2.4016613805,0.,-0.0792232083
H,0,1.277079155,0.,2.8175462754
H,0,-1.277079155,0.,2.8175462754


hexat01.mol

Input file for hexa-1,3,5-triene:

#p b3lyp/6-31g(d) int=ultrafine scf=tight pop=full gfinput   

hexat01f, B3LYP/6-31G(d) int=ultrafine opt C2h      

0 1      
C,0,-0.0739497673,0.,-0.1187064542
C,0,-0.050222057,0.,1.2241550803
C,0,1.1592950217,0.,2.0239271876
C,0,1.1789735685,0.,3.3760728124
C,0,2.3884906473,0.,4.1758449197
C,0,2.4122183575,0.,5.5187064542
H,0,-1.0069301836,0.,-0.6737773017
H,0,3.3451987739,0.,6.0737773017
H,0,0.8427473445,0.,-0.7042781041
H,0,1.4955212457,0.,6.1042781041
H,0,-0.9927879452,0.,1.7726178163
H,0,3.3310565354,0.,3.6273821837
H,0,2.1057553182,0.,1.4813128549
H,0,0.232513272,0.,3.9186871451


heptat02.mol

Input file for hepta-2,4,6-trienyl cation:

#p b3lyp/6-31g(d) int=ultrafine scf=tight pop=full gfinput    

heptat02f, B3LYP/6-31G(d) int=ultrafine opt C2v     

+1 1       
H,0,0.,0.,-0.2075759499
C,0,0.,0.,0.8802769699
C,0,1.2110244557,0.,1.5647974307
C,0,-1.2110244557,0.,1.5647974307
C,0,2.4881790949,0.,0.9387893122
C,0,-2.4881790949,0.,0.9387893122
C,0,3.6294933289,0.,1.6747110547
C,0,-3.6294933289,0.,1.6747110547
H,0,4.6083638565,0.,1.2046813918
H,0,-4.6083638565,0.,1.2046813918
H,0,3.6071716916,0.,2.7619705844
H,0,-3.6071716916,0.,2.7619705844
H,0,2.5364300858,0.,-0.1475639658
H,0,-2.5364300858,0.,-0.1475639658
H,0,1.1875855498,0.,2.6548359569
H,0,-1.1875855498,0.,2.6548359569


octat01.mol

Input file for octa-1,3,5,7-tetraene:

#p b3lyp/6-31g(d) int=ultrafine scf=tight pop=full gfinput     

octat01f, B3LYP/6-31G(d) int=ultrafine opt C2h      

0 1      
C,0,-0.1344024958,0.,-0.2671559498
C,0,-0.0961882004,0.,1.0763781568
C,0,1.1191637,0.,1.8630962112
C,0,1.1505083391,0.,3.2184760577
C,0,2.3568945463,0.,4.0065239423
C,0,2.3882391853,0.,5.3619037888
C,0,3.6035910857,0.,6.1486218432
C,0,3.6418053811,0.,7.4921559498
H,0,-1.0733816024,0.,-0.811897031
H,0,4.5807844877,0.,8.036897031
H,0,0.7759683399,0.,-0.8624244551
H,0,2.7314345454,0.,8.0874244551
H,0,-1.0334734642,0.,1.633943077
H,0,4.5408763495,0.,5.591056923
H,0,2.0610652438,0.,1.3128476779
H,0,1.4463376416,0.,5.9121523221
H,0,0.2059682025,0.,3.7645603898
H,0,3.3014346829,0.,3.4604396102


nonat01.mol

Input file for nona-2,4,6,8-tetraenyl cation:

#p b3lyp/6-31g(d) int=ultrafine scf=tight pop=full gfinput    

nonat01, B3LYP/6-31G(d) int=ultrafine opt C2v     

+1 1       
H,0,0.,0.,-0.0323125176
C,0,0.,0.,1.0579813552
C,0,1.2407575058,0.,1.7104496529
C,0,-1.2407575058,0.,1.7104496529
C,0,2.4293537543,0.,1.0047953189
C,0,-2.4293537543,0.,1.0047953189
C,0,3.7247606143,0.,1.6052242556
C,0,-3.7247606143,0.,1.6052242556
C,0,4.8541342105,0.,0.8576167966
C,0,-4.8541342105,0.,0.8576167966
H,0,5.8385854087,0.,1.3150232434
H,0,-5.8385854087,0.,1.3150232434
H,0,4.818409477,0.,-0.2291325548
H,0,-4.818409477,0.,-0.2291325548
H,0,3.7888561834,0.,2.6910825002
H,0,-3.7888561834,0.,2.6910825002
H,0,2.3856086334,0.,-0.0845787265
H,0,-2.3856086334,0.,-0.0845787265
H,0,1.2648948452,0.,2.7982958485
H,0,-1.2648948452,0.,2.7982958485