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All results from a given calculation for C5H8 (1,2-Butadiene, 3-methyl-)

using model chemistry: PBEPBEultrafine/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-195.013558
Energy at 298.15K-195.020526
HF Energy-195.013558
Nuclear repulsion energy156.209055
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at PBEPBEultrafine/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3085 3034 14.95      
2 A1 3062 3012 13.27      
3 A1 2968 2919 60.45      
4 A1 2027 1994 19.15      
5 A1 1495 1471 0.54      
6 A1 1449 1425 3.77      
7 A1 1388 1365 1.53      
8 A1 1297 1275 17.59      
9 A1 1008 991 8.59      
10 A1 731 719 0.05      
11 A1 331 326 0.22      
12 A2 3018 2969 0.00      
13 A2 1455 1431 0.00      
14 A2 980 964 0.00      
15 A2 598 588 0.00      
16 A2 171 168 0.00      
17 B1 3127 3075 7.95      
18 B1 3019 2969 45.66      
19 B1 1471 1447 15.93      
20 B1 1070 1052 0.94      
21 B1 1000 984 0.07      
22 B1 448 441 0.48      
23 B1 261 257 4.05      
24 B1 180 177 1.43      
25 B2 3084 3033 16.96      
26 B2 2963 2914 18.42      
27 B2 1463 1439 6.82      
28 B2 1371 1349 2.94      
29 B2 1195 1175 5.13      
30 B2 948 932 0.25      
31 B2 823 810 51.66      
32 B2 591 582 6.54      
33 B2 178 175 0.13      

Unscaled Zero Point Vibrational Energy (zpe) 24126.8 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 23728.7 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at PBEPBEultrafine/6-31G*
ABC
0.27344 0.11894 0.08711

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 2.254
C2 0.000 0.000 0.938
H3 -0.932 0.000 2.834
H4 0.932 0.000 2.834
C5 0.000 0.000 -0.382
C6 0.000 1.290 -1.178
C7 0.000 -1.290 -1.178
H8 0.000 2.175 -0.523
H9 0.000 -2.175 -0.523
H10 0.888 1.342 -1.836
H11 -0.888 1.342 -1.836
H12 -0.888 -1.342 -1.836
H13 0.888 -1.342 -1.836

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 C7 H8 H9 H10 H11 H12 H13
C11.31551.09781.09782.63623.66623.66623.52723.52724.39514.39514.39514.3951
C21.31552.11222.11221.32062.47842.47842.62012.62013.20743.20743.20743.2074
H31.09782.11221.86433.34834.31584.31584.10694.10695.18854.85894.85895.1885
H41.09782.11221.86433.34834.31584.31584.10694.10694.85895.18855.18854.8589
C52.63621.32063.34833.34831.51551.51552.17912.17912.16882.16882.16882.1688
C63.66622.47844.31584.31581.51552.57951.10073.52561.10661.10662.85472.8547
C73.66622.47844.31584.31581.51552.57953.52561.10072.85472.85471.10661.1066
H83.52722.62014.10694.10692.17911.10073.52564.34901.79011.79013.85743.8574
H93.52722.62014.10694.10692.17913.52561.10074.34903.85743.85741.79011.7901
H104.39513.20745.18854.85892.16881.10662.85471.79013.85741.77653.21912.6845
H114.39513.20744.85895.18852.16881.10662.85471.79013.85741.77652.68453.2191
H124.39513.20744.85895.18852.16882.85471.10663.85741.79013.21912.68451.7765
H134.39513.20745.18854.85892.16882.85471.10663.85741.79012.68453.21911.7765

picture of 1,2-Butadiene, 3-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 180.000 C2 C1 H3 121.881
C2 C1 H4 121.881 C2 C5 C6 121.673
C2 C5 C7 121.673 H3 C1 H4 116.237
C5 C6 H8 111.827 C5 C6 H10 110.645
C5 C6 H11 110.645 C5 C7 H9 111.827
C5 C7 H12 110.645 C5 C7 H13 110.645
C6 C5 C7 116.654 H8 C6 H10 108.391
H8 C6 H11 108.391 H9 C7 H12 108.391
H9 C7 H13 108.391 H10 C6 H11 106.770
H12 C7 H13 106.770
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.578      
2 C 0.306      
3 H 0.168      
4 H 0.168      
5 C -0.033      
6 C -0.528      
7 C -0.528      
8 H 0.177      
9 H 0.177      
10 H 0.168      
11 H 0.168      
12 H 0.168      
13 H 0.168      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.602 0.602
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.390 0.000 0.000
y 0.000 -31.691 -0.006
z 0.000 -0.006 -29.111
Traceless
 xyz
x -0.989 0.000 0.000
y 0.000 -1.440 -0.006
z 0.000 -0.006 2.429
Polar
3z2-r24.858
x2-y20.301
xy0.000
xz0.000
yz-0.006


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.620 0.000 0.000
y 0.000 6.323 -0.006
z 0.000 -0.006 13.093


<r2> (average value of r2) Å2
<r2> 144.095
(<r2>)1/2 12.004