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

using model chemistry: BLYP/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/aug-cc-pVDZ
 hartrees
Energy at 0K-195.218564
Energy at 298.15K-195.226136
Nuclear repulsion energy158.709863
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 BLYP/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 A' 3159 3153 16.20      
2 A' 3152 3146 13.26      
3 A' 3076 3070 3.74      
4 A' 3066 3060 16.53      
5 A' 3061 3056 6.57      
6 A' 3041 3035 19.73      
7 A' 2950 2944 22.72      
8 A' 1625 1622 3.11      
9 A' 1593 1590 29.80      
10 A' 1446 1444 4.98      
11 A' 1407 1405 2.81      
12 A' 1381 1379 0.68      
13 A' 1354 1351 5.06      
14 A' 1288 1285 1.58      
15 A' 1284 1282 0.14      
16 A' 1054 1052 2.19      
17 A' 981 979 0.16      
18 A' 932 931 1.28      
19 A' 770 769 0.14      
20 A' 523 522 0.04      
21 A' 422 421 1.57      
22 A' 273 273 0.86      
23 A" 2998 2992 17.12      
24 A" 1422 1419 7.40      
25 A" 1025 1023 0.16      
26 A" 992 990 14.43      
27 A" 907 905 37.10      
28 A" 895 894 40.41      
29 A" 758 757 0.24      
30 A" 621 620 0.04      
31 A" 406 405 9.91      
32 A" 202 202 0.34      
33 A" 167 166 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 24116.5 cm-1
Scaled (by 0.9981) Zero Point Vibrational Energy (zpe) 24070.6 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 BLYP/aug-cc-pVDZ
ABC
0.27953 0.13620 0.09320

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.603 1.747 0.000
C2 0.000 0.528 0.000
C3 -0.827 -0.694 0.000
C4 -0.370 -1.970 0.000
C5 1.513 0.389 0.000
H6 -1.696 1.843 0.000
H7 -0.023 2.678 0.000
H8 -1.915 -0.526 0.000
H9 0.699 -2.215 0.000
H10 -1.066 -2.818 0.000
H11 2.001 1.378 0.000
H12 1.861 -0.170 0.890
H13 1.861 -0.170 -0.890

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.35992.45143.72492.51361.09751.09692.62494.17034.58902.62993.24613.2461
C21.35991.47542.52581.51892.14602.15032.18582.83063.51202.17452.17782.1778
C32.45141.47541.35562.57782.68193.46681.10102.15412.13783.50602.87932.8793
C43.72492.52581.35563.01874.03734.66172.11451.09681.09654.10363.00213.0021
C52.51361.51892.57783.01873.52252.75633.54742.72824.11511.10341.10741.1074
H61.09752.14602.68194.03733.52251.87002.37954.71194.70403.72634.18294.1829
H71.09692.15033.46684.66172.75631.87003.72144.94615.59472.40543.52893.5289
H82.62492.18581.10102.11453.54742.37953.72143.11162.44444.35473.89563.8956
H94.17032.83062.15411.09682.72824.71194.94613.11161.86463.82202.51482.5148
H104.58903.51202.13781.09654.11514.70405.59472.44441.86465.19794.04604.0460
H112.62992.17453.50604.10361.10343.72632.40544.35473.82205.19791.79151.7915
H123.24612.17782.87933.00211.10744.18293.52893.89562.51484.04601.79151.7801
H133.24612.17782.87933.00211.10744.18293.52893.89562.51484.04601.79151.7801

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 119.621 C1 C2 C5 121.549
C2 C1 H6 121.316 C2 C1 H7 121.782
C2 C3 C4 126.251 C2 C3 H8 115.315
C2 C5 H11 111.045 C2 C5 H12 111.073
C2 C5 H13 111.073 C3 C2 C5 118.830
C3 C4 H9 122.550 C3 C4 H10 120.987
C4 C3 H8 118.434 H6 C1 H7 116.902
H9 C4 H10 116.463 H11 C5 H12 108.258
H11 C5 H13 108.258 H12 C5 H13 106.979
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.358      
2 C 0.849      
3 C 1.584      
4 C 0.581      
5 C 0.599      
6 H -0.806      
7 H -0.837      
8 H -1.013      
9 H -0.853      
10 H -0.710      
11 H -0.579      
12 H -0.087      
13 H -0.087      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.299 0.033 0.000 0.301
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.666 0.120 0.000
y 0.120 -31.443 0.000
z 0.000 0.000 -35.726
Traceless
 xyz
x 2.919 0.120 0.000
y 0.120 1.753 0.000
z 0.000 0.000 -4.672
Polar
3z2-r2-9.344
x2-y20.778
xy0.120
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.935 -0.743 0.000
y -0.743 15.088 0.000
z 0.000 0.000 7.174


<r2> (average value of r2) Å2
<r2> 134.616
(<r2>)1/2 11.602