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

using model chemistry: wB97X-D/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at wB97X-D/aug-cc-pVTZ
 hartrees
Energy at 0K-195.312005
Energy at 298.15K-195.319621
HF Energy-195.312005
Nuclear repulsion energy161.062479
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/aug-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 A' 3253 3112 11.00      
2 A' 3242 3101 11.34      
3 A' 3174 3036 5.03      
4 A' 3163 3025 10.60      
5 A' 3157 3020 4.38      
6 A' 3148 3011 17.26      
7 A' 3050 2917 19.41      
8 A' 1742 1666 2.43      
9 A' 1690 1616 34.76      
10 A' 1509 1443 6.98      
11 A' 1466 1402 2.75      
12 A' 1445 1382 3.66      
13 A' 1419 1358 7.89      
14 A' 1347 1289 1.02      
15 A' 1342 1284 0.05      
16 A' 1099 1051 3.89      
17 A' 1020 975 0.20      
18 A' 973 930 0.93      
19 A' 801 766 0.20      
20 A' 541 518 0.08      
21 A' 440 421 1.61      
22 A' 283 271 1.00      
23 A" 3107 2972 13.46      
24 A" 1479 1415 9.07      
25 A" 1075 1028 0.05      
26 A" 1028 983 8.52      
27 A" 954 913 59.56      
28 A" 940 899 34.06      
29 A" 797 763 0.74      
30 A" 646 618 0.00      
31 A" 406 389 10.96      
32 A" 161 154 0.30      
33 A" 135 129 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 25013.6 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 23928.0 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/aug-cc-pVTZ
ABC
0.28714 0.14063 0.09607

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.581 1.726 0.000
C2 0.000 0.528 0.000
C3 -0.828 -0.684 0.000
C4 -0.369 -1.931 0.000
C5 1.492 0.366 0.000
H6 -1.659 1.831 0.000
H7 -0.001 2.640 0.000
H8 -1.900 -0.515 0.000
H9 0.689 -2.159 0.000
H10 -1.048 -2.773 0.000
H11 1.988 1.334 0.000
H12 1.822 -0.191 0.879
H13 1.822 -0.191 -0.879

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.33182.42313.66352.47961.08291.08232.60014.08754.52372.59873.19683.1968
C21.33181.46772.48651.50102.10972.11242.16682.77373.46342.14552.14662.1466
C32.42311.46771.32842.54642.64953.42571.08532.11552.10063.46452.83482.8348
C43.66352.48651.32842.95653.97744.58622.08531.08271.08154.02752.93322.9332
C52.47961.50102.54642.95653.47512.72083.50422.64944.03801.08811.09141.0914
H61.08292.10972.64953.97743.47511.84432.35854.62994.64513.68054.12014.1201
H71.08232.11243.42574.58622.72081.84433.68204.84865.51382.37963.47983.4798
H82.60012.16681.08532.08533.50422.35853.68203.06692.41394.30503.83753.8375
H94.08752.77372.11551.08272.64944.62994.84863.06691.84253.72702.43532.4353
H104.52373.46342.10061.08154.03804.64515.51382.41391.84255.10783.95963.9596
H112.59872.14553.46454.02751.08813.68052.37964.30503.72705.10781.76801.7680
H123.19682.14662.83482.93321.09144.12013.47983.83752.43533.95961.76801.7585
H133.19682.14662.83482.93321.09144.12013.47983.83752.43533.95961.76801.7585

picture of 1,3-Butadiene, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 119.817 C1 C2 C5 122.052
C2 C1 H6 121.434 C2 C1 H7 121.754
C2 C3 C4 125.491 C2 C3 H8 115.333
C2 C5 H11 110.918 C2 C5 H12 110.806
C2 C5 H13 110.806 C3 C2 C5 118.131
C3 C4 H9 122.331 C3 C4 H10 120.957
C4 C3 H8 119.176 H6 C1 H7 116.812
H9 C4 H10 116.712 H11 C5 H12 108.424
H11 C5 H13 108.424 H12 C5 H13 107.343
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -1.325      
2 C 1.231      
3 C -0.375      
4 C -0.952      
5 C -0.817      
6 H 0.257      
7 H 0.395      
8 H 0.165      
9 H 0.206      
10 H 0.403      
11 H 0.142      
12 H 0.335      
13 H 0.335      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.285 -0.011 0.000 0.285
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.554 0.064 0.000
y 0.064 -30.118 0.000
z 0.000 0.000 -35.086
Traceless
 xyz
x 3.048 0.064 0.000
y 0.064 2.202 0.000
z 0.000 0.000 -5.250
Polar
3z2-r2-10.500
x2-y20.563
xy0.064
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.220 -0.837 0.000
y -0.837 13.752 0.000
z 0.000 0.000 6.829


<r2> (average value of r2) Å2
<r2> 130.528
(<r2>)1/2 11.425