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All results from a given calculation for C5H8 (1,2-Butadiene, 3-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 C2V 1A1
Energy calculated at BLYP/aug-cc-pVDZ
 hartrees
Energy at 0K-195.200226
Energy at 298.15K-195.207126
Nuclear repulsion energy155.579862
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 A1 3049 3043 17.40      
2 A1 3030 3024 15.80      
3 A1 2939 2934 72.71      
4 A1 1983 1979 29.68      
5 A1 1454 1451 1.21      
6 A1 1416 1414 5.06      
7 A1 1356 1353 1.90      
8 A1 1271 1268 19.12      
9 A1 993 992 4.95      
10 A1 711 710 0.03      
11 A1 337 337 0.11      
12 A2 2981 2976 0.00      
13 A2 1413 1410 0.00      
14 A2 962 960 0.00      
15 A2 588 587 0.00      
16 A2 157 157 0.00      
17 B1 3100 3094 6.81      
18 B1 2982 2977 49.73      
19 B1 1429 1426 13.31      
20 B1 1048 1046 0.22      
21 B1 981 979 1.40      
22 B1 434 433 0.49      
23 B1 229 228 4.47      
24 B1 175 175 2.41      
25 B2 3048 3043 19.74      
26 B2 2934 2929 21.30      
27 B2 1420 1417 5.84      
28 B2 1340 1337 3.13      
29 B2 1159 1157 6.92      
30 B2 936 934 0.00      
31 B2 840 839 44.85      
32 B2 576 575 12.15      
33 B2 177 176 0.76      

Unscaled Zero Point Vibrational Energy (zpe) 23723.8 cm-1
Scaled (by 0.9981) Zero Point Vibrational Energy (zpe) 23678.7 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 BLYP/aug-cc-pVDZ
ABC
0.27108 0.11790 0.08634

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 2.264
C2 0.000 0.000 0.942
H3 -0.935 0.000 2.843
H4 0.935 0.000 2.843
C5 0.000 0.000 -0.381
C6 0.000 1.296 -1.184
C7 0.000 -1.296 -1.184
H8 0.000 2.182 -0.528
H9 0.000 -2.182 -0.528
H10 0.891 1.344 -1.842
H11 -0.891 1.344 -1.842
H12 -0.891 -1.344 -1.842
H13 0.891 -1.344 -1.842

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 C7 H8 H9 H10 H11 H12 H13
C11.32201.09991.09992.64553.68433.68433.54403.54404.41204.41204.41204.4120
C21.32202.11822.11821.32352.49072.49072.63152.63153.21803.21803.21803.2180
H31.09992.11821.87083.35704.33294.33294.12324.12325.20524.87444.87445.2052
H41.09992.11821.87083.35704.33294.33294.12324.12324.87445.20525.20524.8744
C52.64551.32353.35703.35701.52511.52512.18742.18742.17632.17632.17632.1763
C63.68432.49074.33294.33291.52512.59281.10283.54021.10871.10872.86372.8637
C73.68432.49074.33294.33291.52512.59283.54021.10282.86372.86371.10871.1087
H83.54402.63154.12324.12322.18741.10283.54024.36491.79551.79553.86793.8679
H93.54402.63154.12324.12322.18743.54021.10284.36493.86793.86791.79551.7955
H104.41203.21805.20524.87442.17631.10872.86371.79553.86791.78213.22582.6888
H114.41203.21804.87445.20522.17631.10872.86371.79553.86791.78212.68883.2258
H124.41203.21804.87445.20522.17632.86371.10873.86791.79553.22582.68881.7821
H134.41203.21805.20524.87442.17632.86371.10873.86791.79552.68883.22581.7821

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 121.734
C2 C1 H4 121.734 C2 C5 C6 121.782
C2 C5 C7 121.782 H3 C1 H4 116.532
C5 C6 H8 111.686 C5 C6 H10 110.449
C5 C6 H11 110.449 C5 C7 H9 111.686
C5 C7 H12 110.449 C5 C7 H13 110.449
C6 C5 C7 116.435 H8 C6 H10 108.569
H8 C6 H11 108.569 H9 C7 H12 108.569
H9 C7 H13 108.569 H10 C6 H11 106.975
H12 C7 H13 106.975
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 1.254      
2 C -0.070      
3 H -0.606      
4 H -0.606      
5 C 0.212      
6 C 0.840      
7 C 0.840      
8 H -0.451      
9 H -0.451      
10 H -0.241      
11 H -0.241      
12 H -0.241      
13 H -0.241      


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 -0.633 0.633
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.721 0.000 0.000
y 0.000 -33.340 0.000
z 0.000 0.000 -30.837
Traceless
 xyz
x -0.633 0.000 0.000
y 0.000 -1.561 0.000
z 0.000 0.000 2.194
Polar
3z2-r24.388
x2-y20.619
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.627 0.000 0.000
y 0.000 9.170 0.000
z 0.000 0.000 15.300


<r2> (average value of r2) Å2
<r2> 146.117
(<r2>)1/2 12.088