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All results from a given calculation for C4H6 (Methylenecyclopropane)

using model chemistry: PBEPBE/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 PBEPBE/cc-pVTZ
 hartrees
Energy at 0K-155.801361
Energy at 298.15K-155.807008
Nuclear repulsion energy109.083870
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-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 3057 3036 12.76      
2 A1 3039 3018 13.54      
3 A1 1789 1777 8.82      
4 A1 1431 1421 0.09      
5 A1 1392 1383 0.93      
6 A1 1049 1042 2.93      
7 A1 991 984 5.07      
8 A1 737 732 3.93      
9 A2 3108 3086 0.00      
10 A2 1128 1120 0.00      
11 A2 926 919 0.00      
12 A2 594 590 0.00      
13 B1 3120 3099 12.66      
14 B1 1056 1049 1.29      
15 B1 877 871 39.29      
16 B1 727 722 2.26      
17 B1 279 277 4.01      
18 B2 3136 3115 11.30      
19 B2 3039 3018 15.79      
20 B2 1396 1386 2.51      
21 B2 1107 1099 6.85      
22 B2 1027 1020 1.48      
23 B2 883 877 13.58      
24 B2 346 344 0.35      

Unscaled Zero Point Vibrational Energy (zpe) 18116.4 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 17991.4 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-pVTZ
ABC
0.64934 0.22849 0.18134

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.640
C2 0.000 0.000 0.316
H3 0.000 0.932 2.208
H4 0.000 -0.932 2.208
C5 0.000 0.770 -0.933
C6 0.000 -0.770 -0.933
H7 0.917 1.279 -1.238
H8 -0.917 1.279 -1.238
H9 -0.917 -1.279 -1.238
H10 0.917 -1.279 -1.238

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10
C11.32411.09181.09182.68612.68613.28053.28053.28053.2805
C21.32412.10952.10951.46751.46752.21182.21182.21182.2118
H31.09182.10951.86463.14583.57313.58343.58344.19644.1964
H41.09182.10951.86463.57313.14584.19644.19643.58343.5834
C52.68611.46753.14583.57311.53991.09221.09222.26522.2652
C62.68611.46753.57313.14581.53992.26522.26521.09221.0922
H73.28052.21183.58344.19641.09222.26521.83393.14702.5575
H83.28052.21183.58344.19641.09222.26521.83392.55753.1470
H93.28052.21184.19643.58342.26521.09223.14702.55751.8339
H103.28052.21184.19643.58342.26521.09222.55753.14701.8339

picture of Methylenecyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 148.353 C1 C2 C6 148.353
C2 C1 H3 121.362 C2 C1 H4 121.362
C2 C5 C6 58.353 C2 C5 H7 118.834
C2 C5 H8 118.834 C2 C6 C5 58.353
C2 C6 H9 118.834 C2 C6 H10 118.834
H3 C1 H4 117.277 C5 C2 C6 63.294
C5 C6 H9 117.765 C5 C6 H10 117.765
C6 C5 H7 117.765 C6 C5 H8 117.765
H7 C5 H8 114.195 H9 C6 H10 114.195
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.237      
2 C 0.052      
3 H 0.104      
4 H 0.104      
5 C -0.209      
6 C -0.209      
7 H 0.099      
8 H 0.099      
9 H 0.099      
10 H 0.099      


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 -0.461 0.461
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.493 0.000 0.000
y 0.000 -24.524 0.000
z 0.000 0.000 -24.811
Traceless
 xyz
x -0.825 0.000 0.000
y 0.000 0.628 0.000
z 0.000 0.000 0.197
Polar
3z2-r20.395
x2-y2-0.969
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.062 0.000 0.000
y 0.000 6.788 0.000
z 0.000 0.000 9.455


<r2> (average value of r2) Å2
<r2> 77.413
(<r2>)1/2 8.798