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All results from a given calculation for C4H6 (Methylenecyclopropane)

using model chemistry: PBEPBE/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 PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-155.752369
Energy at 298.15K-155.757973
Nuclear repulsion energy108.413362
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 PBEPBE/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3064 3046 11.81      
2 A1 3037 3019 11.17      
3 A1 1808 1798 7.09      
4 A1 1410 1402 0.03      
5 A1 1367 1359 0.62      
6 A1 1057 1051 2.38      
7 A1 982 976 3.90      
8 A1 740 735 3.54      
9 A2 3117 3099 0.00      
10 A2 1114 1108 0.00      
11 A2 912 907 0.00      
12 A2 583 580 0.00      
13 B1 3129 3111 11.96      
14 B1 1040 1034 0.69      
15 B1 865 860 31.84      
16 B1 721 717 2.30      
17 B1 277 276 2.92      
18 B2 3157 3139 10.96      
19 B2 3037 3019 12.95      
20 B2 1364 1356 1.94      
21 B2 1103 1097 7.76      
22 B2 1010 1004 1.03      
23 B2 883 877 11.01      
24 B2 341 339 0.31      

Unscaled Zero Point Vibrational Energy (zpe) 18057.7 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 17953.0 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 PBEPBE/cc-pVDZ
ABC
0.64200 0.22574 0.17929

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.650
C2 0.000 0.000 0.317
H3 0.000 0.942 2.221
H4 0.000 -0.942 2.221
C5 0.000 0.773 -0.939
C6 0.000 -0.773 -0.939
H7 0.926 1.287 -1.245
H8 -0.926 1.287 -1.245
H9 -0.926 -1.287 -1.245
H10 0.926 -1.287 -1.245

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10
C11.33311.10121.10122.70192.70193.30113.30113.30113.3011
C21.33312.12392.12391.47461.47462.22602.22602.22602.2260
H31.10122.12391.88393.16403.59483.60393.60394.22364.2236
H41.10122.12391.88393.59483.16404.22364.22363.60393.6039
C52.70191.47463.16403.59481.54561.10271.10272.27942.2794
C62.70191.47463.59483.16401.54562.27942.27941.10271.1027
H73.30112.22603.60394.22361.10272.27941.85163.17152.5749
H83.30112.22603.60394.22361.10272.27941.85162.57493.1715
H93.30112.22604.22363.60392.27941.10273.17152.57491.8516
H103.30112.22604.22363.60392.27941.10272.57493.17151.8516

picture of Methylenecyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 148.395 C1 C2 C6 148.395
C2 C1 H3 121.201 C2 C1 H4 121.201
C2 C5 C6 58.395 C2 C5 H7 118.764
C2 C5 H8 118.764 C2 C6 C5 58.395
C2 C6 H9 118.764 C2 C6 H10 118.764
H3 C1 H4 117.597 C5 C2 C6 63.210
C5 C6 H9 117.823 C5 C6 H10 117.823
C6 C5 H7 117.823 C6 C5 H8 117.823
H7 C5 H8 114.202 H9 C6 H10 114.202
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.054      
2 C -0.104      
3 H 0.024      
4 H 0.024      
5 C -0.045      
6 C -0.045      
7 H 0.050      
8 H 0.050      
9 H 0.050      
10 H 0.050      


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 -0.422 0.422
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.165 0.000 0.000
y 0.000 -24.335 0.000
z 0.000 0.000 -24.670
Traceless
 xyz
x -0.662 0.000 0.000
y 0.000 0.582 0.000
z 0.000 0.000 0.080
Polar
3z2-r20.160
x2-y2-0.830
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.387 0.000 0.000
y 0.000 6.306 0.000
z 0.000 0.000 8.920


<r2> (average value of r2) Å2
<r2> 78.024
(<r2>)1/2 8.833