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

using model chemistry: PBEPBE/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-195.022705
Energy at 298.15K-195.029643
Nuclear repulsion energy155.965306
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 PBEPBE/cc-pVDZ
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 3080 3062 12.99      
2 A1 3043 3025 9.94      
3 A1 2955 2938 60.02      
4 A1 2023 2012 22.61      
5 A1 1449 1440 2.82      
6 A1 1394 1386 5.66      
7 A1 1340 1332 1.50      
8 A1 1269 1262 15.95      
9 A1 987 981 7.72      
10 A1 732 728 0.15      
11 A1 331 329 0.17      
12 A2 3014 2997 0.00      
13 A2 1392 1384 0.00      
14 A2 953 947 0.00      
15 A2 588 584 0.00      
16 A2 166 165 0.00      
17 B1 3124 3105 4.56      
18 B1 3014 2996 37.87      
19 B1 1410 1402 14.77      
20 B1 1040 1034 0.63      
21 B1 969 963 0.16      
22 B1 439 436 0.73      
23 B1 256 254 3.71      
24 B1 182 181 1.94      
25 B2 3080 3062 12.83      
26 B2 2951 2934 19.69      
27 B2 1399 1391 7.03      
28 B2 1325 1317 2.63      
29 B2 1191 1184 6.27      
30 B2 928 922 0.25      
31 B2 814 809 44.37      
32 B2 583 580 8.01      
33 B2 176 175 0.24      

Unscaled Zero Point Vibrational Energy (zpe) 23797.3 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 23659.3 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 PBEPBE/cc-pVDZ
ABC
0.27311 0.11861 0.08695

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 2.258
C2 0.000 0.000 0.939
H3 -0.940 0.000 2.835
H4 0.940 0.000 2.835
C5 0.000 0.000 -0.385
C6 0.000 1.290 -1.178
C7 0.000 -1.290 -1.178
H8 0.000 2.179 -0.521
H9 0.000 -2.179 -0.521
H10 0.892 1.341 -1.840
H11 -0.892 1.341 -1.840
H12 -0.892 -1.341 -1.840
H13 0.892 -1.341 -1.840

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 C7 H8 H9 H10 H11 H12 H13
C11.31881.10331.10332.64263.67003.67003.53153.53154.40284.40284.40284.4028
C21.31882.11662.11661.32382.47902.47902.62312.62313.21193.21193.21193.2119
H31.10332.11661.88013.35464.31924.31924.11084.11085.19744.86404.86405.1974
H41.10332.11661.88013.35464.31924.31924.11084.11084.86405.19745.19744.8640
C52.64261.32383.35463.35461.51411.51412.18322.18322.17062.17062.17062.1706
C63.67002.47904.31924.31921.51412.57921.10563.53021.11191.11192.85552.8555
C73.67002.47904.31924.31921.51412.57923.53021.10562.85552.85551.11191.1119
H83.53152.62314.11084.11082.18321.10563.53024.35791.79901.79903.86323.8632
H93.53152.62314.11084.11082.18323.53021.10564.35793.86323.86321.79901.7990
H104.40283.21195.19744.86402.17061.11192.85551.79903.86321.78423.22132.6820
H114.40283.21194.86405.19742.17061.11192.85551.79903.86321.78422.68203.2213
H124.40283.21194.86405.19742.17062.85551.11193.86321.79903.22132.68201.7842
H134.40283.21195.19744.86402.17062.85551.11193.86321.79902.68203.22131.7842

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 121.567
C2 C1 H4 121.567 C2 C5 C6 121.599
C2 C5 C7 121.599 H3 C1 H4 116.866
C5 C6 H8 111.952 C5 C6 H10 110.560
C5 C6 H11 110.560 C5 C7 H9 111.952
C5 C7 H12 110.560 C5 C7 H13 110.560
C6 C5 C7 116.801 H8 C6 H10 108.443
H8 C6 H11 108.443 H9 C7 H12 108.443
H9 C7 H13 108.443 H10 C6 H11 106.704
H12 C7 H13 106.704
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.111      
2 C 0.153      
3 H 0.053      
4 H 0.053      
5 C -0.400      
6 C 0.010      
7 C 0.010      
8 H 0.030      
9 H 0.030      
10 H 0.043      
11 H 0.043      
12 H 0.043      
13 H 0.043      


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 -0.635 0.635
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.849 0.000 0.000
y 0.000 -32.139 0.000
z 0.000 0.000 -29.432
Traceless
 xyz
x -1.064 0.000 0.000
y 0.000 -1.498 0.000
z 0.000 0.000 2.562
Polar
3z2-r25.124
x2-y20.290
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.981 0.000 0.000
y 0.000 7.074 0.000
z 0.000 0.000 13.744


<r2> (average value of r2) Å2
<r2> 144.631
(<r2>)1/2 12.026