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All results from a given calculation for C4H6 (Methylenecyclopropane)

using model chemistry: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-154.947698
Energy at 298.15K-154.953735
HF Energy-154.947698
Nuclear repulsion energy110.277028
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 HF/Def2TZVPP
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 3272 2966 13.00      
2 A1 3256 2951 16.20      
3 A1 1968 1783 10.47      
4 A1 1612 1461 1.43      
5 A1 1562 1416 0.46      
6 A1 1159 1050 0.00      
7 A1 1126 1020 4.72      
8 A1 793 719 10.35      
9 A2 3324 3013 0.00      
10 A2 1271 1152 0.00      
11 A2 1038 941 0.00      
12 A2 672 609 0.00      
13 B1 3338 3026 20.83      
14 B1 1198 1086 2.43      
15 B1 1049 950 53.92      
16 B1 810 735 1.91      
17 B1 339 308 5.63      
18 B2 3351 3037 13.17      
19 B2 3251 2947 21.64      
20 B2 1572 1425 1.80      
21 B2 1240 1124 7.22      
22 B2 1197 1085 0.38      
23 B2 970 879 18.46      
24 B2 387 351 0.20      

Unscaled Zero Point Vibrational Energy (zpe) 19876.3 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 18015.9 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 HF/Def2TZVPP
ABC
0.66329 0.23330 0.18509

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.644
C2 0.000 0.000 0.308
H3 0.000 0.893 2.162
H4 0.000 -0.893 2.162
C5 0.000 0.746 -0.890
C6 0.000 -0.746 -0.890
H7 0.915 0.929 -1.340
H8 -0.915 0.929 -1.340
H9 -0.915 -0.929 -1.340
H10 0.915 -0.929 -1.340

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10
C11.33681.03171.03172.64142.64143.25683.25683.25683.2568
C21.33682.05792.05791.41041.41042.10112.10112.10112.1011
H31.03172.05791.78513.05503.46343.61973.61974.05194.0519
H41.03172.05791.78513.46343.05504.05194.05193.61973.6197
C52.64141.41043.05503.46341.49141.03601.03601.96061.9606
C62.64141.41043.46343.05501.49141.96061.96061.03601.0360
H73.25682.10113.61974.05191.03601.96061.82962.60731.8576
H83.25682.10113.61974.05191.03601.96061.82961.85762.6073
H93.25682.10114.05193.61971.96061.03602.60731.85761.8296
H103.25682.10114.05193.61971.96061.03601.85762.60731.8296

picture of Methylenecyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 148.082 C1 C2 C6 148.082
C2 C1 H3 120.105 C2 C1 H4 120.105
C2 C5 C6 58.082 C2 C5 H7 117.552
C2 C5 H8 117.552 C2 C6 C5 58.082
C2 C6 H9 117.552 C2 C6 H10 117.552
H3 C1 H4 119.791 C5 C2 C6 63.837
C5 C6 H9 100.180 C5 C6 H10 100.180
C6 C5 H7 100.180 C6 C5 H8 100.180
H7 C5 H8 124.009 H9 C6 H10 124.009
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.144      
2 C -0.099      
3 H 0.070      
4 H 0.070      
5 C -0.046      
6 C -0.046      
7 H 0.049      
8 H 0.049      
9 H 0.049      
10 H 0.049      


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 -0.475 0.475
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.793 0.000 0.000
y 0.000 -24.500 0.000
z 0.000 0.000 -24.730
Traceless
 xyz
x -1.179 0.000 0.000
y 0.000 0.762 0.000
z 0.000 0.000 0.417
Polar
3z2-r20.834
x2-y2-1.293
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.085 0.000 0.000
y 0.000 6.313 0.000
z 0.000 0.000 9.114


<r2> (average value of r2) Å2
<r2> 76.116
(<r2>)1/2 8.724