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All results from a given calculation for C4H6 (Methylenecyclopropane)

using model chemistry: HF/daug-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 HF/daug-cc-pVTZ
 hartrees
Energy at 0K-154.944440
Energy at 298.15K-154.950468
HF Energy-154.944440
Nuclear repulsion energy110.261114
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/daug-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 3270 2958 12.68      
2 A1 3253 2943 16.32      
3 A1 1965 1777 11.18      
4 A1 1611 1458 1.56      
5 A1 1562 1413 0.38      
6 A1 1157 1046 0.00      
7 A1 1125 1018 4.59      
8 A1 792 716 10.38      
9 A2 3321 3004 0.00      
10 A2 1270 1148 0.00      
11 A2 1037 938 0.00      
12 A2 670 606 0.00      
13 B1 3335 3017 19.83      
14 B1 1197 1082 2.82      
15 B1 1047 948 53.59      
16 B1 808 731 2.21      
17 B1 339 307 5.73      
18 B2 3348 3029 12.72      
19 B2 3248 2938 20.85      
20 B2 1571 1421 2.01      
21 B2 1239 1121 6.74      
22 B2 1194 1081 0.30      
23 B2 970 877 18.19      
24 B2 387 350 0.20      

Unscaled Zero Point Vibrational Energy (zpe) 19858.3 cm-1
Scaled (by 0.9046) Zero Point Vibrational Energy (zpe) 17963.8 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 HF/daug-cc-pVTZ
ABC
0.66309 0.23322 0.18503

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.623
C2 0.000 0.000 0.318
H3 0.000 0.919 2.180
H4 0.000 -0.919 2.180
C5 0.000 0.764 -0.926
C6 0.000 -0.764 -0.926
H7 0.905 1.263 -1.223
H8 -0.905 1.263 -1.223
H9 -0.905 -1.263 -1.223
H10 0.905 -1.263 -1.223

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10
C11.30481.07481.07482.66042.66043.24173.24173.24173.2417
C21.30482.07692.07691.45931.45932.18762.18762.18762.1876
H31.07482.07691.83723.11023.53263.53823.53824.14224.1422
H41.07482.07691.83723.53263.11024.14224.14223.53823.5382
C52.66041.45933.11023.53261.52741.07491.07492.23882.2388
C62.66041.45933.53263.11021.52742.23882.23881.07491.0749
H73.24172.18763.53824.14221.07492.23881.80933.10632.5250
H83.24172.18763.53824.14221.07492.23881.80932.52503.1063
H93.24172.18764.14223.53822.23881.07493.10632.52501.8093
H103.24172.18764.14223.53822.23881.07492.52503.10631.8093

picture of Methylenecyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 148.446 C1 C2 C6 148.446
C2 C1 H3 121.273 C2 C1 H4 121.273
C2 C5 C6 58.446 C2 C5 H7 118.573
C2 C5 H8 118.573 C2 C6 C5 58.446
C2 C6 H9 118.573 C2 C6 H10 118.573
H3 C1 H4 117.453 C5 C2 C6 63.109
C5 C6 H9 117.650 C5 C6 H10 117.650
C6 C5 H7 117.650 C6 C5 H8 117.650
H7 C5 H8 114.621 H9 C6 H10 114.621
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -1.181      
2 C 1.916      
3 H 0.526      
4 H 0.526      
5 C -1.401      
6 C -1.401      
7 H 0.254      
8 H 0.254      
9 H 0.254      
10 H 0.254      


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 -0.481 0.481
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.830 0.000 0.000
y 0.000 -24.521 0.000
z 0.000 0.000 -24.760
Traceless
 xyz
x -1.189 0.000 0.000
y 0.000 0.774 0.000
z 0.000 0.000 0.415
Polar
3z2-r20.830
x2-y2-1.308
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.475 0.000 0.000
y 0.000 6.548 0.000
z 0.000 0.000 9.312


<r2> (average value of r2) Å2
<r2> 76.152
(<r2>)1/2 8.726