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 C3H4O (allenol)

using model chemistry: CID/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CID/6-31G*
 hartrees
Energy at 0K-191.209383
Energy at 298.15K-191.212954
HF Energy-190.708230
Nuclear repulsion energy102.355910
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 CID/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3907 3609 44.04      
2 A' 3331 3077 5.34      
3 A' 3243 2996 12.23      
4 A' 2175 2009 35.05      
5 A' 1594 1473 64.94      
6 A' 1497 1383 64.40      
7 A' 1358 1254 2.22      
8 A' 1264 1168 127.81      
9 A' 1051 971 124.44      
10 A' 988 912 38.76      
11 A' 653 603 22.47      
12 A' 224 207 0.90      
13 A" 3319 3066 8.05      
14 A" 1095 1011 1.20      
15 A" 959 886 20.88      
16 A" 663 612 1.85      
17 A" 413 381 148.17      
18 A" 291 269 2.38      

Unscaled Zero Point Vibrational Energy (zpe) 14011.8 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 12942.7 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 CID/6-31G*
ABC
1.46512 0.14633 0.13673

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.659 -0.485 0.000
C2 0.000 0.641 0.000
C3 -0.649 1.773 0.000
O4 0.114 -1.741 0.000
H5 1.738 -0.523 0.000
H6 -0.931 2.269 0.921
H7 -0.931 2.269 -0.921
H8 -0.846 -1.662 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.30502.60961.36941.07973.31033.31031.9102
C21.30501.30462.38552.09172.08862.08862.4535
C32.60961.30463.59633.31181.08311.08313.4403
O41.36942.38553.59632.03044.24494.24490.9632
H51.07972.09173.31182.03043.97013.97012.8237
H63.31032.08861.08314.24493.97011.84204.0375
H73.31032.08861.08314.24493.97011.84204.0375
H81.91022.45353.44030.96322.82374.03754.0375

picture of allenol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 179.512 C1 O4 H8 108.700
C2 C1 O4 126.227 C2 C1 H5 122.319
C2 C3 H6 121.754 C2 C3 H7 121.754
O4 C1 H5 111.454 H6 C3 H7 116.492
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at CID/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.074      
2 C 0.048      
3 C -0.471      
4 O -0.712      
5 H 0.213      
6 H 0.196      
7 H 0.196      
8 H 0.454      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.766 0.927 -0.002
y 0.927 -24.848 -0.003
z -0.002 -0.003 -24.291
Traceless
 xyz
x 3.804 0.927 -0.002
y 0.927 -2.320 -0.003
z -0.002 -0.003 -1.484
Polar
3z2-r2-2.967
x2-y24.083
xy0.927
xz-0.002
yz-0.003


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> 87.355
(<r2>)1/2 9.346