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All results from a given calculation for C4H6 (Methylenecyclopropane)

using model chemistry: B3PW91/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 B3PW91/cc-pVDZ
 hartrees
Energy at 0K-155.914718
Energy at 298.15K-155.920450
Nuclear repulsion energy109.057799
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 B3PW91/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 3141 3031 11.07      
2 A1 3115 3006 10.36      
3 A1 1864 1799 7.41      
4 A1 1459 1408 0.07      
5 A1 1415 1365 0.87      
6 A1 1086 1048 2.58      
7 A1 1025 989 3.72      
8 A1 760 734 4.88      
9 A2 3197 3085 0.00      
10 A2 1153 1112 0.00      
11 A2 942 909 0.00      
12 A2 604 583 0.00      
13 B1 3209 3097 11.17      
14 B1 1077 1040 0.75      
15 B1 907 875 35.67      
16 B1 747 721 2.33      
17 B1 293 283 3.51      
18 B2 3237 3123 9.57      
19 B2 3114 3005 12.52      
20 B2 1412 1363 2.33      
21 B2 1139 1099 8.58      
22 B2 1054 1018 1.18      
23 B2 909 877 11.72      
24 B2 352 339 0.34      

Unscaled Zero Point Vibrational Energy (zpe) 18604.9 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 17953.8 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 B3PW91/cc-pVDZ
ABC
0.65019 0.22826 0.18134

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.641
C2 0.000 0.000 0.316
H3 0.000 0.935 2.208
H4 0.000 -0.935 2.208
C5 0.000 0.768 -0.934
C6 0.000 -0.768 -0.934
H7 0.920 1.279 -1.237
H8 -0.920 1.279 -1.237
H9 -0.920 -1.279 -1.237
H10 0.920 -1.279 -1.237

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10
C11.32441.09361.09362.68712.68713.28123.28123.28123.2812
C21.32442.10982.10981.46761.46762.21272.21272.21272.2127
H31.09362.10981.87073.14613.57383.58213.58214.19734.1973
H41.09362.10981.87073.57383.14614.19734.19733.58213.5821
C52.68711.46763.14613.57381.53611.09491.09492.26472.2647
C62.68711.46763.57383.14611.53612.26472.26471.09491.0949
H73.28122.21273.58214.19731.09492.26471.83923.15092.5584
H83.28122.21273.58214.19731.09492.26471.83922.55843.1509
H93.28122.21274.19733.58212.26471.09493.15092.55841.8392
H103.28122.21274.19733.58212.26471.09492.55843.15091.8392

picture of Methylenecyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 148.443 C1 C2 C6 148.443
C2 C1 H3 121.209 C2 C1 H4 121.209
C2 C5 C6 58.443 C2 C5 H7 118.703
C2 C5 H8 118.703 C2 C6 C5 58.443
C2 C6 H9 118.703 C2 C6 H10 118.703
H3 C1 H4 117.582 C5 C2 C6 63.113
C5 C6 H9 117.828 C5 C6 H10 117.828
C6 C5 H7 117.828 C6 C5 H8 117.828
H7 C5 H8 114.254 H9 C6 H10 114.254
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.076      
2 C -0.129      
3 H 0.041      
4 H 0.041      
5 C -0.065      
6 C -0.065      
7 H 0.063      
8 H 0.063      
9 H 0.063      
10 H 0.063      


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 -0.409 0.409
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.037 0.000 0.000
y 0.000 -24.118 0.000
z 0.000 0.000 -24.406
Traceless
 xyz
x -0.774 0.000 0.000
y 0.000 0.603 0.000
z 0.000 0.000 0.172
Polar
3z2-r20.343
x2-y2-0.918
xy0.000
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 77.169
(<r2>)1/2 8.785