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/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-116.591379
Energy at 298.15K-116.594102
HF Energy-116.434008
Nuclear repulsion energy59.342703
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/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3156 3156 0.00 329.66 0.07 0.12
2 A1 1493 1493 0.00 17.22 0.71 0.83
3 A1 1105 1105 0.00 54.58 0.22 0.36
4 B1 889 889 0.00 1.92 0.75 0.86
5 B2 3154 3154 1.16 47.25 0.75 0.86
6 B2 2039 2039 73.51 1.99 0.75 0.86
7 B2 1440 1440 3.32 0.01 0.75 0.86
8 E 3235 3235 0.54 94.67 0.75 0.86
8 E 3235 3235 0.54 94.67 0.75 0.86
9 E 1024 1024 1.07 0.07 0.75 0.86
9 E 1024 1024 1.07 0.07 0.75 0.86
10 E 873 873 56.61 1.20 0.75 0.86
10 E 873 873 56.61 1.20 0.75 0.86
11 E 369 369 6.87 0.99 0.75 0.86
11 E 369 369 6.87 0.99 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12139.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12139.2 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/Def2TZVPP
ABC
4.87804 0.29839 0.29839

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/Def2TZVPP

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 1.304
C3 0.000 0.000 -1.304
H4 0.000 0.926 1.862
H5 0.000 -0.926 1.862
H6 0.926 0.000 -1.862
H7 -0.926 0.000 -1.862

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.30361.30362.07972.07972.07972.0797
C21.30362.60731.08131.08133.29853.2985
C31.30362.60733.29853.29851.08131.0813
H42.07971.08133.29851.85183.94793.9479
H52.07971.08133.29851.85183.94793.9479
H62.07973.29851.08133.94793.94791.8518
H72.07973.29851.08133.94793.94791.8518

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.103 C1 C2 H5 121.103
C1 C3 H6 121.103 C1 C3 H7 121.103
C2 C1 C3 180.000 H4 C2 H5 117.794
H6 C3 H7 117.794
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.000      
2 C -0.220      
3 C -0.220      
4 H 0.110      
5 H 0.110      
6 H 0.110      
7 H 0.110      


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 -19.618 0.000 0.000
y 0.000 -19.610 0.000
z 0.000 0.000 -15.807
Traceless
 xyz
x -1.909 0.000 0.000
y 0.000 -1.897 0.000
z 0.000 0.000 3.807
Polar
3z2-r27.614
x2-y2-0.008
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.783 0.000 0.000
y 0.000 3.783 0.000
z 0.000 0.000 9.091


<r2> (average value of r2) Å2
<r2> 49.153
(<r2>)1/2 7.011