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: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-154.694640
Energy at 298.15K-154.696793
Nuclear repulsion energy88.910116
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 mPW1PW91/6-31+G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3166 3014 0.00      
2 Ag 2235 2128 0.00      
3 Ag 1474 1403 0.00      
4 Ag 916 872 0.00      
5 Au 776 739 0.00      
6 B1u 3169 3016 3.74      
7 B1u 1707 1625 25.78      
8 B1u 1414 1346 0.10      
9 B2g 896 853 0.00      
10 B2g 590 562 0.00      
11 B2u 3252 3096 2.61      
12 B2u 1045 995 0.09      
13 B2u 231 220 9.74      
14 B3g 3253 3096 0.00      
15 B3g 1023 973 0.00      
16 B3g 368 351 0.00      
17 B3u 899 856 122.23      
18 B3u 238 226 8.08      

Unscaled Zero Point Vibrational Energy (zpe) 13326.7 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 12684.4 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 mPW1PW91/6-31+G**
ABC
4.85665 0.13309 0.12954

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.635
C2 0.000 0.000 -0.635
C3 0.000 0.000 1.952
C4 0.000 0.000 -1.952
H5 0.000 0.928 2.516
H6 0.000 -0.928 2.516
H7 0.000 0.928 -2.516
H8 0.000 -0.928 -2.516

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8
C11.27101.31652.58752.09732.09733.28563.2856
C21.27102.58751.31653.28563.28562.09732.0973
C31.31652.58753.90401.08601.08604.56364.5636
C42.58751.31653.90404.56364.56361.08601.0860
H52.09733.28561.08604.56361.85585.03265.3639
H62.09733.28561.08604.56361.85585.36395.0326
H73.28562.09734.56361.08605.03265.36391.8558
H83.28562.09734.56361.08605.36395.03261.8558

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 121.305
C1 C3 H6 121.305 C2 C1 C3 180.000
C2 C4 H7 121.305 C2 C4 H8 121.305
H5 C3 H6 117.389 H7 C4 H8 117.389
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.358      
2 C 0.358      
3 C -0.721      
4 C -0.721      
5 H 0.181      
6 H 0.181      
7 H 0.181      
8 H 0.181      


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 -27.025 0.000 0.000
y 0.000 -23.021 0.000
z 0.000 0.000 -17.807
Traceless
 xyz
x -6.611 0.000 0.000
y 0.000 -0.605 0.000
z 0.000 0.000 7.216
Polar
3z2-r214.432
x2-y2-4.004
xy0.000
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 93.468
(<r2>)1/2 9.668