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

using model chemistry: B3LYP/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/TZVP
 hartrees
Energy at 0K-195.365747
Energy at 298.15K-195.372848
HF Energy-195.365747
Nuclear repulsion energy157.413890
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 B3LYP/TZVP
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 3122 3014 16.27      
2 A1 3110 3002 10.17      
3 A1 3019 2915 62.60      
4 A1 2057 1986 33.49      
5 A1 1518 1466 0.62      
6 A1 1477 1426 6.65      
7 A1 1419 1370 1.07      
8 A1 1319 1273 19.07      
9 A1 1028 993 5.56      
10 A1 734 709 0.02      
11 A1 344 332 0.12      
12 A2 3061 2955 0.00      
13 A2 1479 1428 0.00      
14 A2 1007 972 0.00      
15 A2 615 594 0.00      
16 A2 158 153 0.00      
17 B1 3177 3068 5.02      
18 B1 3062 2956 46.33      
19 B1 1495 1443 17.84      
20 B1 1101 1063 0.00      
21 B1 1030 994 0.56      
22 B1 461 445 0.19      
23 B1 259 251 6.37      
24 B1 176 170 1.45      
25 B2 3121 3013 19.12      
26 B2 3015 2910 17.78      
27 B2 1487 1435 6.94      
28 B2 1403 1354 4.40      
29 B2 1202 1161 6.40      
30 B2 968 935 0.00      
31 B2 883 853 53.94      
32 B2 609 588 12.86      
33 B2 186 180 0.80      

Unscaled Zero Point Vibrational Energy (zpe) 24551.1 cm-1
Scaled (by 0.9654) Zero Point Vibrational Energy (zpe) 23701.6 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 B3LYP/TZVP
ABC
0.27588 0.12105 0.08841

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 2.234
C2 0.000 0.000 0.931
H3 -0.925 0.000 2.803
H4 0.925 0.000 2.803
C5 0.000 0.000 -0.374
C6 0.000 1.286 -1.170
C7 0.000 -1.286 -1.170
H8 0.000 2.161 -0.521
H9 0.000 -2.161 -0.521
H10 0.880 1.335 -1.818
H11 -0.880 1.335 -1.818
H12 -0.880 -1.335 -1.818
H13 0.880 -1.335 -1.818

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 C7 H8 H9 H10 H11 H12 H13
C11.30321.08581.08582.60833.63853.63853.50173.50174.35624.35624.35624.3562
C21.30322.08812.08811.30512.46282.46282.60352.60353.18013.18013.18013.1801
H31.08582.08811.84973.30924.27684.27684.07154.07155.13764.81024.81025.1376
H41.08582.08811.84973.30924.27684.27684.07154.07154.81025.13765.13764.8102
C52.60831.30513.30923.30921.51181.51182.16582.16582.15432.15432.15432.1543
C63.63852.46284.27684.27681.51182.57121.08913.50681.09451.09452.83912.8391
C73.63852.46284.27684.27681.51182.57123.50681.08912.83912.83911.09451.0945
H83.50172.60354.07154.07152.16581.08913.50684.32151.77171.77173.83063.8306
H93.50172.60354.07154.07152.16583.50681.08914.32153.83063.83061.77171.7717
H104.35623.18015.13764.81022.15431.09452.83911.77173.83061.76093.19762.6690
H114.35623.18014.81025.13762.15431.09452.83911.77173.83061.76092.66903.1976
H124.35623.18014.81025.13762.15432.83911.09453.83061.77173.19762.66901.7609
H134.35623.18015.13764.81022.15432.83911.09453.83061.77172.66903.19761.7609

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 121.599
C2 C1 H4 121.599 C2 C5 C6 121.747
C2 C5 C7 121.747 H3 C1 H4 116.802
C5 C6 H8 111.728 C5 C6 H10 110.470
C5 C6 H11 110.470 C5 C7 H9 111.728
C5 C7 H12 110.470 C5 C7 H13 110.470
C6 C5 C7 116.506 H8 C6 H10 108.461
H8 C6 H11 108.461 H9 C7 H12 108.461
H9 C7 H13 108.461 H10 C6 H11 107.105
H12 C7 H13 107.105
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.310      
2 C 0.072      
3 H 0.130      
4 H 0.130      
5 C -0.078      
6 C -0.350      
7 C -0.350      
8 H 0.135      
9 H 0.135      
10 H 0.121      
11 H 0.121      
12 H 0.121      
13 H 0.121      


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 -0.622 0.622
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.293 0.000 0.000
y 0.000 -32.791 0.000
z 0.000 0.000 -30.088
Traceless
 xyz
x -0.854 0.000 0.000
y 0.000 -1.601 0.000
z 0.000 0.000 2.455
Polar
3z2-r24.910
x2-y20.498
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.541 0.000 0.000
y 0.000 7.618 0.000
z 0.000 0.000 14.013


<r2> (average value of r2) Å2
<r2> 142.805
(<r2>)1/2 11.950