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All results from a given calculation for C3H4O (allenol)

using model chemistry: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-191.260469
Energy at 298.15K-191.263917
HF Energy-190.706348
Nuclear repulsion energy101.592214
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 MP2/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3742 3529 39.59      
2 A' 3269 3083 4.34      
3 A' 3181 3000 11.77      
4 A' 2072 1953 43.14      
5 A' 1544 1456 32.83      
6 A' 1455 1372 63.11      
7 A' 1317 1242 1.28      
8 A' 1222 1152 128.58      
9 A' 1005 948 114.99      
10 A' 935 882 36.87      
11 A' 621 586 19.77      
12 A' 207 195 0.82      
13 A" 3261 3075 6.84      
14 A" 1066 1005 0.58      
15 A" 912 860 26.63      
16 A" 636 600 0.34      
17 A" 431 407 135.98      
18 A" 258 244 2.71      

Unscaled Zero Point Vibrational Energy (zpe) 13566.6 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 12793.3 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 MP2/6-31G*
ABC
1.43828 0.14429 0.13474

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.659 -0.494 0.000
C2 0.000 0.645 0.000
C3 -0.644 1.792 0.000
O4 0.107 -1.758 0.000
H5 1.744 -0.543 0.000
H6 -0.913 2.302 0.923
H7 -0.913 2.302 -0.923
H8 -0.862 -1.657 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.31642.63161.37901.08533.33833.33831.9149
C21.31641.31532.40502.11012.10512.10512.4579
C32.63161.31533.62793.33991.08851.08853.4553
O41.37902.40503.62792.03814.28634.28630.9743
H51.08532.11013.33992.03814.00094.00092.8338
H63.33832.10511.08854.28634.00091.84624.0651
H73.33832.10511.08854.28634.00091.84624.0651
H81.91492.45793.45530.97432.83384.06514.0651

picture of allenol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 179.268 C1 O4 H8 107.682
C2 C1 O4 126.309 C2 C1 H5 122.658
C2 C3 H6 121.987 C2 C3 H7 121.987
O4 C1 H5 111.032 H6 C3 H7 115.999
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability