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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: MP2=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2v 1A1
Energy calculated at MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-116.398255
Energy at 298.15K-116.401485
HF Energy-115.865384
Nuclear repulsion energy64.087141
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=FULL/cc-pVTZ
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 3362 3192 0.41 147.16 0.15 0.26
2 A1 3128 2970 51.56 134.77 0.13 0.23
3 A1 1703 1617 15.40 28.57 0.14 0.24
4 A1 1544 1465 1.18 13.21 0.21 0.35
5 A1 1180 1120 0.07 13.52 0.13 0.23
6 A1 941 893 5.09 4.62 0.58 0.74
7 A2 1036 984 0.00 5.65 0.75 0.86
8 A2 854 811 0.00 0.06 0.75 0.86
9 B1 3195 3033 30.88 82.50 0.75 0.86
10 B1 1128 1071 1.46 1.26 0.75 0.86
11 B1 596 566 76.65 0.63 0.75 0.86
12 B2 3307 3140 1.32 70.35 0.75 0.86
13 B2 1085 1030 16.84 0.00 0.75 0.86
14 B2 1044 992 39.45 0.00 0.75 0.86
15 B2 811 770 14.09 14.08 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12456.7 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 11826.4 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=FULL/cc-pVTZ
ABC
1.00938 0.74038 0.46648

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.858
C2 0.000 0.647 -0.498
C3 0.000 -0.647 -0.498
H4 0.000 1.573 -1.031
H5 0.000 -1.573 -1.031
H6 0.909 0.000 1.443
H7 -0.909 0.000 1.443

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.50221.50222.45852.45851.08101.0810
C21.50221.29411.06872.28322.23852.2385
C31.50221.29412.28321.06872.23852.2385
H42.45851.06872.28323.14593.06963.0696
H52.45852.28321.06873.14593.06963.0696
H61.08102.23852.23853.06963.06961.8182
H71.08102.23852.23853.06963.06961.8182

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.486 C1 C2 H4 145.472
C1 C3 C2 64.486 C1 C3 H5 145.472
C2 C1 C3 51.027 C2 C1 H6 119.226
C2 C1 H7 119.226 C2 C3 H5 150.041
C3 C1 H6 119.226 C3 C1 H7 119.226
C3 C2 H4 150.041 H6 C1 H7 114.494
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability