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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: B97D3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2v 1A1
Energy calculated at B97D3/6-31G*
 hartrees
Energy at 0K-116.540693
Energy at 298.15K-116.543845
HF Energy-116.540693
Nuclear repulsion energy63.569510
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 B97D3/6-31G*
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 3249 3185 1.80 152.05 0.14 0.24
2 A1 2985 2927 87.17 135.82 0.15 0.26
3 A1 1720 1687 11.58 32.49 0.20 0.33
4 A1 1526 1496 6.19 18.02 0.31 0.47
5 A1 1161 1139 2.01 8.11 0.18 0.31
6 A1 913 895 2.95 9.68 0.66 0.79
7 A2 1007 987 0.00 17.54 0.75 0.86
8 A2 818 802 0.00 0.01 0.75 0.86
9 B1 3041 2981 75.62 97.52 0.75 0.86
10 B1 1111 1089 1.51 3.74 0.75 0.86
11 B1 573 562 61.73 1.77 0.75 0.86
12 B2 3204 3142 4.96 83.18 0.75 0.86
13 B2 1059 1039 38.66 0.81 0.75 0.86
14 B2 1010 990 20.41 0.05 0.75 0.86
15 B2 799 784 11.96 18.45 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12088.5 cm-1
Scaled (by 0.9804) Zero Point Vibrational Energy (zpe) 11851.6 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 B97D3/6-31G*
ABC
0.99352 0.72976 0.45962

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.860
C2 0.000 0.651 -0.501
C3 0.000 -0.651 -0.501
H4 0.000 1.591 -1.042
H5 0.000 -1.591 -1.042
H6 0.917 0.000 1.467
H7 -0.917 0.000 1.467

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.50841.50842.47972.47971.10011.1001
C21.50841.30211.08462.30622.26692.2669
C31.50841.30212.30621.08462.26692.2669
H42.47971.08462.30623.18123.10983.1098
H52.47972.30621.08463.18123.10983.1098
H61.10012.26692.26693.10983.10981.8343
H71.10012.26692.26693.10983.10981.8343

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.430 C1 C2 H4 145.536
C1 C3 C2 64.430 C1 C3 H5 145.536
C2 C1 C3 51.140 C2 C1 H6 119.879
C2 C1 H7 119.879 C2 C3 H5 150.034
C3 C1 H6 119.879 C3 C1 H7 119.879
C3 C2 H4 150.034 H6 C1 H7 112.956
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.329      
2 C -0.117      
3 C -0.117      
4 H 0.145      
5 H 0.145      
6 H 0.136      
7 H 0.136      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.512 0.512
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.922 0.000 0.000
y 0.000 -16.558 0.000
z 0.000 0.000 -18.122
Traceless
 xyz
x -1.582 0.000 0.000
y 0.000 1.964 0.000
z 0.000 0.000 -0.383
Polar
3z2-r2-0.765
x2-y2-2.364
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.779 0.000 0.000
y 0.000 4.717 0.000
z 0.000 0.000 4.821


<r2> (average value of r2) Å2
<r2> 36.914
(<r2>)1/2 6.076