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

using model chemistry: wB97X-D/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at wB97X-D/cc-pVTZ
 hartrees
Energy at 0K-195.292328
Energy at 298.15K-195.299386
HF Energy-195.292328
Nuclear repulsion energy157.875738
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 wB97X-D/cc-pVTZ
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 3148 3010 17.81      
2 A1 3141 3002 6.22      
3 A1 3040 2906 56.13      
4 A1 2090 1998 37.61      
5 A1 1518 1452 2.48      
6 A1 1475 1410 7.73      
7 A1 1418 1356 0.82      
8 A1 1327 1268 19.41      
9 A1 1029 983 5.97      
10 A1 746 713 0.08      
11 A1 344 329 0.13      
12 A2 3096 2960 0.00      
13 A2 1483 1418 0.00      
14 A2 1011 966 0.00      
15 A2 621 594 0.00      
16 A2 131 125 0.00      
17 B1 3219 3078 3.46      
18 B1 3096 2960 41.24      
19 B1 1500 1434 16.42      
20 B1 1108 1060 0.04      
21 B1 1033 988 1.04      
22 B1 472 451 0.31      
23 B1 265 253 5.61      
24 B1 153 146 1.57      
25 B2 3147 3008 15.01      
26 B2 3037 2904 18.14      
27 B2 1477 1412 6.97      
28 B2 1405 1344 6.58      
29 B2 1227 1173 4.89      
30 B2 972 929 0.06      
31 B2 895 855 50.61      
32 B2 612 585 12.76      
33 B2 184 176 0.54      

Unscaled Zero Point Vibrational Energy (zpe) 24709.3 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 23622.1 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 wB97X-D/cc-pVTZ
ABC
0.27783 0.12176 0.08899

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 2.228
C2 0.000 0.000 0.928
H3 -0.926 0.000 2.791
H4 0.926 0.000 2.791
C5 0.000 0.000 -0.374
C6 0.000 1.281 -1.166
C7 0.000 -1.281 -1.166
H8 0.000 2.153 -0.516
H9 0.000 -2.153 -0.516
H10 0.880 1.326 -1.812
H11 -0.880 1.326 -1.812
H12 -0.880 -1.326 -1.812
H13 0.880 -1.326 -1.812

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 C7 H8 H9 H10 H11 H12 H13
C11.30081.08361.08362.60233.62813.62813.48853.48854.34244.34244.34244.3424
C21.30082.08102.08101.30162.45452.45452.59262.59263.16823.16823.16823.1682
H31.08362.08101.85163.29794.26144.26144.05394.05395.11954.79074.79075.1195
H41.08362.08101.85163.29794.26144.26144.05394.05394.79075.11955.11954.7907
C52.60231.30163.29793.29791.50621.50622.15802.15802.14492.14492.14492.1449
C63.62812.45454.26144.26141.50622.56231.08763.49541.09231.09232.82652.8265
C73.62812.45454.26144.26141.50622.56233.49541.08762.82652.82651.09231.0923
H83.48852.59264.05394.05392.15801.08763.49544.30671.77111.77113.81573.8157
H93.48852.59264.05394.05392.15803.49541.08764.30673.81573.81571.77111.7711
H104.34243.16825.11954.79072.14491.09232.82651.77113.81571.75953.18292.6524
H114.34243.16824.79075.11952.14491.09232.82651.77113.81571.75952.65243.1829
H124.34243.16824.79075.11952.14492.82651.09233.81571.77113.18292.65241.7595
H134.34243.16825.11954.79072.14492.82651.09233.81571.77112.65243.18291.7595

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 121.305
C2 C1 H4 121.305 C2 C5 C6 121.728
C2 C5 C7 121.728 H3 C1 H4 117.389
C5 C6 H8 111.584 C5 C6 H10 110.244
C5 C6 H11 110.244 C5 C7 H9 111.584
C5 C7 H12 110.244 C5 C7 H13 110.244
C6 C5 C7 116.545 H8 C6 H10 108.675
H8 C6 H11 108.675 H9 C7 H12 108.675
H9 C7 H13 108.675 H10 C6 H11 107.300
H12 C7 H13 107.300
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.362      
2 C -0.075      
3 H 0.118      
4 H 0.118      
5 C 0.103      
6 C -0.224      
7 C -0.224      
8 H 0.096      
9 H 0.096      
10 H 0.088      
11 H 0.088      
12 H 0.088      
13 H 0.088      


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 -0.623 0.623
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.774 0.000 0.000
y 0.000 -32.258 0.000
z 0.000 0.000 -29.385
Traceless
 xyz
x -0.952 0.000 0.000
y 0.000 -1.679 0.000
z 0.000 0.000 2.631
Polar
3z2-r25.262
x2-y20.485
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.465 0.000 0.000
y 0.000 7.595 0.000
z 0.000 0.000 13.654


<r2> (average value of r2) Å2
<r2> 141.639
(<r2>)1/2 11.901