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All results from a given calculation for C3H4O (Cyclopropanone)

using model chemistry: B2PLYP=FULL/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP=FULL/3-21G
 hartrees
Energy at 0K-190.560424
Energy at 298.15K-190.564695
HF Energy-190.423694
Nuclear repulsion energy107.488731
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=FULL/3-21G
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 3177 3025 0.57      
2 A1 1858 1769 163.39      
3 A1 1500 1428 7.89      
4 A1 1093 1041 50.12      
5 A1 995 947 0.00      
6 A1 699 665 2.64      
7 A2 3257 3100 0.00      
8 A2 1194 1137 0.00      
9 A2 715 681 0.00      
10 B1 3271 3114 1.48      
11 B1 1149 1094 0.25      
12 B1 741 705 2.43      
13 B1 410 390 2.25      
14 B2 3174 3022 0.75      
15 B2 1488 1416 8.36      
16 B2 1123 1069 0.65      
17 B2 970 924 156.67      
18 B2 515 491 0.38      

Unscaled Zero Point Vibrational Energy (zpe) 13664.7 cm-1
Scaled (by 0.952) Zero Point Vibrational Energy (zpe) 13008.8 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=FULL/3-21G
ABC
0.66805 0.24120 0.19074

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.388
O2 0.000 0.000 1.601
C3 0.000 0.790 -0.868
C4 0.000 -0.790 -0.868
H5 0.913 1.283 -1.180
H6 -0.913 1.283 -1.180
H7 -0.913 -1.283 -1.180
H8 0.913 -1.283 -1.180

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.21361.48341.48342.22232.22232.22232.2223
O21.21362.59252.59253.19633.19633.19633.1963
C31.48342.59251.57921.08391.08392.28662.2866
C41.48342.59251.57922.28662.28661.08391.0839
H52.22233.19631.08392.28661.82613.15022.5669
H62.22233.19631.08392.28661.82612.56693.1502
H72.22233.19632.28661.08393.15022.56691.8261
H82.22233.19632.28661.08392.56693.15021.8261

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 57.838 C1 C3 H5 119.091
C1 C3 H6 119.091 C1 C4 C3 57.838
C1 C4 H7 119.091 C1 C4 H8 119.091
O2 C1 C3 147.838 O2 C1 C4 147.838
C3 C1 C4 64.323 C3 C4 H7 117.104
C3 C4 H8 117.104 C4 C3 H5 117.104
C4 C3 H6 117.104 H5 C3 H6 114.780
H7 C4 H8 114.780
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability