return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for H2CCCCH2 (Butatriene)

using model chemistry: mPW1PW91/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-154.700372
Energy at 298.15K-154.702136
Nuclear repulsion energy88.710820
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 mPW1PW91/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Ag 3152 3021 0.00      
2 Ag 2234 2141 0.00      
3 Ag 1451 1390 0.00      
4 Ag 914 876 0.00      
5 Au 770 738 0.00      
6 B1u 3155 3024 4.28      
7 B1u 1702 1631 26.55      
8 B1u 1396 1337 0.36      
9 B2g 894 856 0.00      
10 B2g 458 439 0.00      
11 B2u 3244 3109 2.34      
12 B2u 1025 983 1.70      
13 B2u 215 206 8.51      
14 B3g 3244 3109 0.00      
15 B3g 980 939 0.00      
16 B3g 182 174 0.00      
17 B3u 899 862 92.36      
18 B3u 212 203 7.89      

Unscaled Zero Point Vibrational Energy (zpe) 13063.3 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 12518.5 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 mPW1PW91/aug-cc-pVDZ
ABC
4.81326 0.13258 0.12902

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.637
C2 0.000 0.000 -0.637
C3 0.000 0.000 1.956
C4 0.000 0.000 -1.956
H5 0.000 0.932 2.522
H6 0.000 -0.932 2.522
H7 0.000 0.932 -2.522
H8 0.000 -0.932 -2.522

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8
C11.27381.31872.59252.10252.10253.29313.2931
C21.27382.59251.31873.29313.29312.10252.1025
C31.31872.59253.91121.09051.09054.57314.5731
C42.59251.31873.91124.57314.57311.09051.0905
H52.10253.29311.09054.57311.86425.04315.3766
H62.10253.29311.09054.57311.86425.37665.0431
H73.29312.10254.57311.09055.04315.37661.8642
H83.29312.10254.57311.09055.37665.04311.8642

picture of Butatriene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 180.000 C1 C3 H5 121.266
C1 C3 H6 121.266 C2 C1 C3 180.000
C2 C4 H7 121.266 C2 C4 H8 121.266
H5 C3 H6 117.467 H7 C4 H8 117.467
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.229      
2 C 0.229      
3 C 0.313      
4 C 0.313      
5 H -0.271      
6 H -0.271      
7 H -0.271      
8 H -0.271      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.871 0.000 0.000
y 0.000 -23.135 0.000
z 0.000 0.000 -17.884
Traceless
 xyz
x -6.362 0.000 0.000
y 0.000 -0.757 0.000
z 0.000 0.000 7.119
Polar
3z2-r214.238
x2-y2-3.737
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.995 0.000 0.000
y 0.000 5.360 0.000
z 0.000 0.000 16.246


<r2> (average value of r2) Å2
<r2> 93.802
(<r2>)1/2 9.685