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 CH2CCH2 (allene)

using model chemistry: B2PLYP/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at B2PLYP/6-311G**
 hartrees
Energy at 0K-116.555397
Energy at 298.15K-116.558115
HF Energy-116.416697
Nuclear repulsion energy59.209073
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 B2PLYP/6-311G**
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 3151 3151 0.00 300.77 0.07 0.13
2 A1 1488 1488 0.00 21.29 0.68 0.81
3 A1 1103 1103 0.00 47.21 0.29 0.45
4 B1 891 891 0.00 8.41 0.75 0.86
5 B2 3149 3149 2.41 60.19 0.75 0.86
6 B2 2047 2047 58.75 0.06 0.75 0.86
7 B2 1436 1436 3.19 0.00 0.75 0.86
8 E 3230 3230 1.92 106.45 0.75 0.86
8 E 3230 3230 1.92 106.45 0.75 0.86
9 E 1022 1022 0.42 0.22 0.75 0.86
9 E 1022 1022 0.42 0.22 0.75 0.86
10 E 865 865 57.18 0.40 0.75 0.86
10 E 865 865 57.18 0.40 0.75 0.86
11 E 367 367 6.15 1.99 0.75 0.86
11 E 367 367 6.15 1.99 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12116.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12116.1 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 B2PLYP/6-311G**
ABC
4.85697 0.29707 0.29707

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311G**

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
C2 0.000 0.000 1.306
C3 0.000 0.000 -1.306
H4 0.000 0.928 1.867
H5 0.000 -0.928 1.867
H6 0.928 0.000 -1.867
H7 -0.928 0.000 -1.867

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.30631.30632.08502.08502.08502.0850
C21.30632.61261.08421.08423.30643.3064
C31.30632.61263.30643.30641.08421.0842
H42.08501.08423.30641.85583.95823.9582
H52.08501.08423.30641.85583.95823.9582
H62.08503.30641.08423.95823.95821.8558
H72.08503.30641.08423.95823.95821.8558

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.151 C1 C2 H5 121.151
C1 C3 H6 121.151 C1 C3 H7 121.151
C2 C1 C3 180.000 H4 C2 H5 117.698
H6 C3 H7 117.698
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.019      
2 C -0.253      
3 C -0.253      
4 H 0.131      
5 H 0.131      
6 H 0.131      
7 H 0.131      


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 -19.405 0.000 0.000
y 0.000 -19.395 0.000
z 0.000 0.000 -15.666
Traceless
 xyz
x -1.875 0.000 0.000
y 0.000 -1.860 0.000
z 0.000 0.000 3.734
Polar
3z2-r27.469
x2-y2-0.010
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.025 0.000 0.000
y 0.000 3.023 0.000
z 0.000 0.000 8.666


<r2> (average value of r2) Å2
<r2> 49.207
(<r2>)1/2 7.015