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

using model chemistry: HF/aug-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 HF/aug-cc-pVDZ
 hartrees
Energy at 0K-193.960291
Energy at 298.15K-193.967769
Nuclear repulsion energy157.575550
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 HF/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3281 2987 11.21      
2 A1 3268 2976 22.98      
3 A1 3160 2878 82.77      
4 A1 2202 2005 49.96      
5 A1 1618 1473 2.15      
6 A1 1578 1437 5.45      
7 A1 1524 1388 3.33      
8 A1 1408 1282 31.10      
9 A1 1104 1005 4.16      
10 A1 778 708 0.00      
11 A1 366 333 0.08      
12 A2 3208 2922 0.00      
13 A2 1572 1431 0.00      
14 A2 1073 977 0.00      
15 A2 657 598 0.00      
16 A2 181 165 0.00      
17 B1 3364 3063 5.16      
18 B1 3212 2925 64.55      
19 B1 1589 1447 13.91      
20 B1 1185 1079 0.59      
21 B1 1108 1009 3.35      
22 B1 505 460 0.17      
23 B1 283 258 6.77      
24 B1 203 184 1.61      
25 B2 3267 2975 23.54      
26 B2 3155 2873 21.01      
27 B2 1581 1440 5.72      
28 B2 1511 1376 3.74      
29 B2 1311 1194 4.81      
30 B2 1041 948 0.11      
31 B2 990 901 55.72      
32 B2 652 593 17.14      
33 B2 204 186 0.74      

Unscaled Zero Point Vibrational Energy (zpe) 26069.3 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 23738.7 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 HF/aug-cc-pVDZ
ABC
0.27548 0.12149 0.08861

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 2.232
C2 0.000 0.000 0.928
H3 -0.925 0.000 2.792
H4 0.925 0.000 2.792
C5 0.000 0.000 -0.375
C6 0.000 1.287 -1.168
C7 0.000 -1.287 -1.168
H8 0.000 2.158 -0.516
H9 0.000 -2.158 -0.516
H10 0.880 1.334 -1.813
H11 -0.880 1.334 -1.813
H12 -0.880 -1.334 -1.813
H13 0.880 -1.334 -1.813

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 C7 H8 H9 H10 H11 H12 H13
C11.30401.08181.08182.60693.63513.63513.49403.49404.34914.34914.34914.3491
C21.30402.08152.08151.30292.45942.45942.59652.59653.17283.17283.17283.1728
H31.08182.08151.85053.29984.26564.26564.05704.05705.12334.79484.79485.1233
H41.08182.08151.85053.29984.26564.26564.05704.05704.79485.12335.12334.7948
C52.60691.30293.29983.29981.51191.51192.16252.16252.15002.15002.15002.1500
C63.63512.45944.26564.26561.51192.57501.08723.50641.09241.09242.83982.8398
C73.63512.45944.26564.26561.51192.57503.50641.08722.83982.83981.09241.0924
H83.49402.59654.05704.05702.16251.08723.50644.31581.77041.77043.82773.8277
H93.49402.59654.05704.05702.16253.50641.08724.31583.82773.82771.77041.7704
H104.34913.17285.12334.79482.15001.09242.83981.77043.82771.76063.19702.6685
H114.34913.17284.79485.12332.15001.09242.83981.77043.82771.76062.66853.1970
H124.34913.17284.79485.12332.15002.83981.09243.82771.77043.19702.66851.7606
H134.34913.17285.12334.79482.15002.83981.09243.82771.77042.66853.19701.7606

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 121.209
C2 C1 H4 121.209 C2 C5 C6 121.618
C2 C5 C7 121.618 H3 C1 H4 117.582
C5 C6 H8 111.571 C5 C6 H10 110.247
C5 C6 H11 110.247 C5 C7 H9 111.571
C5 C7 H12 110.247 C5 C7 H13 110.247
C6 C5 C7 116.764 H8 C6 H10 108.638
H8 C6 H11 108.638 H9 C7 H12 108.638
H9 C7 H13 108.638 H10 C6 H11 107.383
H12 C7 H13 107.383
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.715      
2 C -0.068      
3 H -0.252      
4 H -0.252      
5 C -0.458      
6 C 0.252      
7 C 0.252      
8 H -0.135      
9 H -0.135      
10 H 0.020      
11 H 0.020      
12 H 0.020      
13 H 0.020      


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 -0.697 0.697
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.461 0.000 0.000
y 0.000 -33.094 0.000
z 0.000 0.000 -30.066
Traceless
 xyz
x -0.881 0.000 0.000
y 0.000 -1.830 0.000
z 0.000 0.000 2.712
Polar
3z2-r25.423
x2-y20.633
xy0.000
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 142.574
(<r2>)1/2 11.940