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All results from a given calculation for C3H4O (Cyclopropanone)

using model chemistry: CISD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CISD/6-31G*
 hartrees
Energy at 0K-191.232016
Energy at 298.15K-191.236290
HF Energy-190.725513
Nuclear repulsion energy109.061396
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 CISD/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 A1 3243 3003 0.81      
2 A1 2059 1906 291.33      
3 A1 1532 1418 2.15      
4 A1 1118 1035 0.01      
5 A1 1113 1030 25.30      
6 A1 772 715 6.60      
7 A2 3323 3076 0.00      
8 A2 1231 1140 0.00      
9 A2 699 647 0.00      
10 B1 3334 3087 3.20      
11 B1 1174 1087 0.36      
12 B1 750 695 0.93      
13 B1 348 322 6.43      
14 B2 3240 2999 2.27      
15 B2 1508 1396 5.35      
16 B2 1162 1076 20.54      
17 B2 1044 966 117.56      
18 B2 533 493 3.79      

Unscaled Zero Point Vibrational Energy (zpe) 14090.6 cm-1
Scaled (by 0.9258) Zero Point Vibrational Energy (zpe) 13045.1 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 CISD/6-31G*
ABC
0.68573 0.24903 0.19697

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.383
O2 0.000 0.000 1.579
C3 0.000 -0.780 -0.858
C4 0.000 0.780 -0.858
H5 -0.911 -1.282 -1.159
H6 0.911 -1.282 -1.159
H7 0.911 1.282 -1.159
H8 -0.911 1.282 -1.159

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.19611.46591.46592.20262.20262.20262.2026
O21.19612.55892.55893.15783.15783.15783.1578
C31.46592.55891.56081.08261.08262.27442.2744
C41.46592.55891.56082.27442.27441.08261.0826
H52.20263.15781.08262.27441.82203.14492.5634
H62.20263.15781.08262.27441.82202.56343.1449
H72.20263.15782.27441.08263.14492.56341.8220
H82.20263.15782.27441.08262.56343.14491.8220

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 57.834 C1 C3 H5 118.830
C1 C3 H6 118.830 C1 C4 C3 57.834
C1 C4 H7 118.830 C1 C4 H8 118.830
O2 C1 C3 147.834 O2 C1 C4 147.834
C3 C1 C4 64.331 C3 C4 H7 117.583
C3 C4 H8 117.583 C4 C3 H5 117.583
C4 C3 H6 117.583 H5 C3 H6 114.590
H7 C4 H8 114.590
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability