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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: B2PLYP=FULL/6-311G*

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/6-311G*
 hartrees
Energy at 0K-116.519481
Energy at 298.15K-116.522675
HF Energy-116.368815
Nuclear repulsion energy63.766428
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/6-311G*
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 3317 3317 0.07 145.94 0.15 0.26
2 A1 3072 3072 73.48 136.66 0.16 0.28
3 A1 1716 1716 15.45 34.35 0.19 0.32
4 A1 1546 1546 2.04 15.15 0.23 0.37
5 A1 1169 1169 0.46 10.37 0.18 0.31
6 A1 930 930 5.03 6.23 0.57 0.72
7 A2 1028 1028 0.00 9.95 0.75 0.86
8 A2 842 842 0.00 0.13 0.75 0.86
9 B1 3140 3140 57.59 98.55 0.75 0.86
10 B1 1126 1126 1.28 2.34 0.75 0.86
11 B1 583 583 84.31 0.82 0.75 0.86
12 B2 3271 3271 0.36 81.46 0.75 0.86
13 B2 1075 1075 34.63 0.46 0.75 0.86
14 B2 1038 1038 33.51 0.04 0.75 0.86
15 B2 791 791 14.74 15.81 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12322.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12322.8 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/6-311G*
ABC
1.00564 0.72928 0.46154

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.863
C2 0.000 0.648 -0.501
C3 0.000 -0.648 -0.501
H4 0.000 1.578 -1.043
H5 0.000 -1.578 -1.043
H6 0.912 0.000 1.459
H7 -0.912 0.000 1.459

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.51041.51042.47482.47481.08941.0894
C21.51041.29541.07662.29062.25692.2569
C31.51041.29542.29061.07662.25692.2569
H42.47481.07662.29063.15553.09573.0957
H52.47482.29061.07663.15553.09573.0957
H61.08942.25692.25693.09573.09571.8243
H71.08942.25692.25693.09573.09571.8243

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.606 C1 C2 H4 145.639
C1 C3 C2 64.606 C1 C3 H5 145.639
C2 C1 C3 50.788 C2 C1 H6 119.602
C2 C1 H7 119.602 C2 C3 H5 149.755
C3 C1 H6 119.602 C3 C1 H7 119.602
C3 C2 H4 149.755 H6 C1 H7 113.703
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability