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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: B2PLYP=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 B2PLYP=FULL/cc-pVTZ
 hartrees
Energy at 0K-116.563844
Energy at 298.15K-116.567069
HF Energy-116.390259
Nuclear repulsion energy64.028706
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/cc-pVTZ
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 3326 3179 0.09 147.53 0.15 0.27
2 A1 3078 2942 66.18 144.45 0.14 0.24
3 A1 1717 1641 16.88 40.24 0.15 0.26
4 A1 1537 1469 1.80 14.22 0.20 0.34
5 A1 1162 1110 0.20 13.36 0.14 0.24
6 A1 933 892 4.29 5.36 0.60 0.75
7 A2 1028 982 0.00 6.26 0.75 0.86
8 A2 865 827 0.00 0.18 0.75 0.86
9 B1 3142 3003 41.47 93.51 0.75 0.86
10 B1 1122 1073 1.72 1.27 0.75 0.86
11 B1 601 575 77.19 0.63 0.75 0.86
12 B2 3278 3133 0.20 76.86 0.75 0.86
13 B2 1082 1034 19.87 0.01 0.75 0.86
14 B2 1046 1000 40.74 0.02 0.75 0.86
15 B2 793 758 14.07 15.09 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12354.4 cm-1
Scaled (by 0.9558) Zero Point Vibrational Energy (zpe) 11808.3 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 B2PLYP=FULL/cc-pVTZ
ABC
1.01384 0.73511 0.46537

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.860
C2 0.000 0.645 -0.499
C3 0.000 -0.645 -0.499
H4 0.000 1.572 -1.037
H5 0.000 -1.572 -1.037
H6 0.910 0.000 1.451
H7 -0.910 0.000 1.451

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.50491.50492.46392.46391.08471.0847
C21.50491.28981.07152.28082.24692.2469
C31.50491.28982.28081.07152.24692.2469
H42.46391.07152.28083.14313.08073.0807
H52.46392.28081.07153.14313.08073.0807
H61.08472.24692.24693.08073.08071.8191
H71.08472.24692.24693.08073.08071.8191

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.625 C1 C2 H4 145.512
C1 C3 C2 64.625 C1 C3 H5 145.512
C2 C1 C3 50.751 C2 C1 H6 119.493
C2 C1 H7 119.493 C2 C3 H5 149.863
C3 C1 H6 119.493 C3 C1 H7 119.493
C3 C2 H4 149.863 H6 C1 H7 113.967
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability