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All results from a given calculation for C4H6 (Methylenecyclopropane)

using model chemistry: B3LYP/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/6-311G*
 hartrees
Energy at 0K-155.996318
Energy at 298.15K-156.002058
Nuclear repulsion energy109.311749
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 B3LYP/6-311G*
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 3119 3014 17.36      
2 A1 3100 2995 19.23      
3 A1 1837 1775 6.03      
4 A1 1496 1446 0.09      
5 A1 1456 1406 0.86      
6 A1 1066 1030 2.62      
7 A1 1035 1000 4.86      
8 A1 742 717 5.81      
9 A2 3168 3061 0.00      
10 A2 1175 1135 0.00      
11 A2 967 934 0.00      
12 A2 621 600 0.00      
13 B1 3181 3074 27.57      
14 B1 1105 1067 1.26      
15 B1 910 879 44.02      
16 B1 763 737 1.67      
17 B1 287 277 4.98      
18 B2 3197 3090 18.63      
19 B2 3098 2994 24.05      
20 B2 1461 1412 1.85      
21 B2 1148 1109 7.35      
22 B2 1070 1034 2.72      
23 B2 901 871 14.63      
24 B2 355 343 0.33      

Unscaled Zero Point Vibrational Energy (zpe) 18628.3 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 18000.5 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 B3LYP/6-311G*
ABC
0.65143 0.22943 0.18194

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.636
C2 0.000 0.000 0.318
H3 0.000 0.926 2.204
H4 0.000 -0.926 2.204
C5 0.000 0.770 -0.932
C6 0.000 -0.770 -0.932
H7 0.911 1.277 -1.237
H8 -0.911 1.277 -1.237
H9 -0.911 -1.277 -1.237
H10 0.911 -1.277 -1.237

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10
C11.31831.08631.08632.68092.68093.27353.27353.27353.2735
C21.31832.10122.10121.46781.46782.20882.20882.20882.2088
H31.08632.10121.85223.13973.56503.57683.57684.18624.1862
H41.08632.10121.85223.56503.13974.18624.18623.57683.5768
C52.68091.46783.13973.56501.53981.08681.08682.26142.2614
C62.68091.46783.56503.13971.53982.26142.26141.08681.0868
H73.27352.20883.57684.18621.08682.26141.82303.13792.5540
H83.27352.20883.57684.18621.08682.26141.82302.55403.1379
H93.27352.20884.18623.57682.26141.08683.13792.55401.8230
H103.27352.20884.18623.57682.26141.08682.55403.13791.8230

picture of Methylenecyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 148.363 C1 C2 C6 148.363
C2 C1 H3 121.515 C2 C1 H4 121.515
C2 C5 C6 58.363 C2 C5 H7 118.933
C2 C5 H8 118.933 C2 C6 C5 58.363
C2 C6 H9 118.933 C2 C6 H10 118.933
H3 C1 H4 116.970 C5 C2 C6 63.274
C5 C6 H9 117.814 C5 C6 H10 117.814
C6 C5 H7 117.814 C6 C5 H8 117.814
H7 C5 H8 114.011 H9 C6 H10 114.011
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.507     -0.580
2 C 0.120     0.272
3 H 0.203     0.198
4 H 0.203     0.198
5 C -0.452     -0.342
6 C -0.452     -0.342
7 H 0.221     0.150
8 H 0.221     0.147
9 H 0.221     0.147
10 H 0.221     0.150


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 -0.412 0.412
CHELPG        
AIM        
ESP 0.025 0.000 -0.429 0.430


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.505 0.000 0.000
y 0.000 -24.489 0.000
z 0.000 0.000 -24.767
Traceless
 xyz
x -0.878 0.000 0.000
y 0.000 0.647 0.000
z 0.000 0.000 0.231
Polar
3z2-r20.461
x2-y2-1.016
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.439 0.000 0.000
y 0.000 6.189 0.000
z 0.000 0.000 8.774


<r2> (average value of r2) Å2
<r2> 77.161
(<r2>)1/2 8.784