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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: B2PLYP=FULLultrafine/aug-cc-pVDZ

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=FULLultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-116.499813
Energy at 298.15K 
HF Energy-116.358577
Nuclear repulsion energy63.406826
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=FULLultrafine/aug-cc-pVDZ
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 3323 3197 0.03 156.82 0.13 0.22
2 A1 3075 2959 66.77 150.78 0.12 0.22
3 A1 1704 1639 18.36 59.55 0.07 0.13
4 A1 1516 1459 1.53 11.59 0.17 0.29
5 A1 1155 1112 0.10 18.21 0.11 0.20
6 A1 922 888 4.10 5.03 0.56 0.72
7 A2 1010 972 0.00 2.26 0.75 0.86
8 A2 805 775 0.00 1.04 0.75 0.86
9 B1 3150 3032 40.13 107.17 0.75 0.86
10 B1 1102 1060 1.27 0.14 0.75 0.86
11 B1 561 539 85.44 0.06 0.75 0.86
12 B2 3277 3154 0.34 83.29 0.75 0.86
13 B2 1059 1019 23.98 0.18 0.75 0.86
14 B2 1025 987 32.62 0.02 0.75 0.86
15 B2 780 751 14.76 13.98 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12231.7 cm-1
Scaled (by 0.9623) Zero Point Vibrational Energy (zpe) 11770.6 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=FULLultrafine/aug-cc-pVDZ
ABC
0.99093 0.72333 0.45667

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.867
C2 0.000 0.653 -0.503
C3 0.000 -0.653 -0.503
H4 0.000 1.589 -1.047
H5 0.000 -1.589 -1.047
H6 0.919 0.000 1.464
H7 -0.919 0.000 1.464

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.51751.51752.48782.48781.09551.0955
C21.51751.30521.08302.30672.26662.2666
C31.51751.30522.30671.08302.26662.2666
H42.48781.08302.30673.17793.11023.1102
H52.48782.30671.08303.17793.11023.1102
H61.09552.26662.26663.11023.11021.8377
H71.09552.26662.26663.11023.11021.8377

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.530 C1 C2 H4 145.634
C1 C3 C2 64.530 C1 C3 H5 145.634
C2 C1 C3 50.941 C2 C1 H6 119.447
C2 C1 H7 119.447 C2 C3 H5 149.836
C3 C1 H6 119.447 C3 C1 H7 119.447
C3 C2 H4 149.836 H6 C1 H7 114.012
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability