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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: B1B95/daug-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 B1B95/daug-cc-pVTZ
 hartrees
Energy at 0K-116.602237
Energy at 298.15K-116.605472
HF Energy-116.602237
Nuclear repulsion energy64.258340
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 B1B95/daug-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 3319 3319 0.13 143.81 0.12 0.22
2 A1 3065 3065 72.65 157.19 0.12 0.21
3 A1 1752 1752 15.45 63.28 0.06 0.11
4 A1 1523 1523 1.83 11.51 0.20 0.33
5 A1 1182 1182 0.27 15.40 0.11 0.21
6 A1 929 929 4.57 4.37 0.65 0.79
7 A2 1025 1025 0.00 2.46 0.75 0.86
8 A2 882 882 0.00 0.85 0.75 0.86
9 B1 3129 3129 42.39 109.66 0.75 0.86
10 B1 1113 1113 1.79 0.11 0.75 0.86
11 B1 617 617 81.32 0.06 0.75 0.86
12 B2 3272 3272 0.28 77.30 0.75 0.86
13 B2 1079 1079 25.76 0.34 0.75 0.86
14 B2 1046 1046 28.30 0.07 0.75 0.86
15 B2 821 821 18.82 12.62 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12376.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12376.5 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 B1B95/daug-cc-pVTZ
ABC
1.01947 0.74220 0.46939

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/daug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.855
C2 0.000 0.642 -0.496
C3 0.000 -0.642 -0.496
H4 0.000 1.570 -1.034
H5 0.000 -1.570 -1.034
H6 0.910 0.000 1.448
H7 -0.910 0.000 1.448

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.49591.49592.45632.45631.08611.0861
C21.49591.28441.07272.27692.24092.2409
C31.49591.28442.27691.07272.24092.2409
H42.45631.07272.27693.14053.07513.0751
H52.45632.27691.07273.14053.07513.0751
H61.08612.24092.24093.07513.07511.8190
H71.08612.24092.24093.07513.07511.8190

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.576 C1 C2 H4 145.518
C1 C3 C2 64.576 C1 C3 H5 145.518
C2 C1 C3 50.848 C2 C1 H6 119.582
C2 C1 H7 119.582 C2 C3 H5 149.906
C3 C1 H6 119.582 C3 C1 H7 119.582
C3 C2 H4 149.906 H6 C1 H7 113.730
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -1.278      
2 C -0.752      
3 C -0.752      
4 H 0.985      
5 H 0.985      
6 H 0.406      
7 H 0.406      


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 -0.485 0.485
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.389 0.000 0.000
y 0.000 -16.754 0.000
z 0.000 0.000 -18.589
Traceless
 xyz
x -1.717 0.000 0.000
y 0.000 2.234 0.000
z 0.000 0.000 -0.517
Polar
3z2-r2-1.034
x2-y2-2.634
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.121 0.000 0.000
y 0.000 5.480 0.000
z 0.000 0.000 5.635


<r2> (average value of r2) Å2
<r2> 36.604
(<r2>)1/2 6.050