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All results from a given calculation for C4H6 (Methylenecyclopropane)

using model chemistry: B3LYP/6-31G*

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/6-31G*
 hartrees
Energy at 0K-155.962637
Energy at 298.15K-155.968378
Nuclear repulsion energy109.112382
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/6-31G*
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 3149 3024 14.62      
2 A1 3122 2998 15.42      
3 A1 1852 1779 3.54      
4 A1 1513 1453 0.11      
5 A1 1472 1413 0.02      
6 A1 1077 1035 1.77      
7 A1 1053 1011 3.76      
8 A1 750 720 4.79      
9 A2 3188 3062 0.00      
10 A2 1180 1133 0.00      
11 A2 970 931 0.00      
12 A2 622 597 0.00      
13 B1 3201 3074 23.25      
14 B1 1109 1065 0.38      
15 B1 915 879 37.09      
16 B1 762 732 1.18      
17 B1 293 282 2.45      
18 B2 3225 3097 16.09      
19 B2 3121 2997 18.80      
20 B2 1479 1420 0.46      
21 B2 1155 1109 7.38      
22 B2 1083 1040 2.17      
23 B2 910 873 12.56      
24 B2 353 339 0.19      

Unscaled Zero Point Vibrational Energy (zpe) 18775.3 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 18029.9 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 B3LYP/6-31G*
ABC
0.65064 0.22827 0.18118

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.641
C2 0.000 0.000 0.318
H3 0.000 0.927 2.210
H4 0.000 -0.927 2.210
C5 0.000 0.770 -0.934
C6 0.000 -0.770 -0.934
H7 0.913 1.280 -1.241
H8 -0.913 1.280 -1.241
H9 -0.913 -1.280 -1.241
H10 0.913 -1.280 -1.241

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10
C11.32231.08781.08782.68722.68723.28183.28183.28183.2818
C21.32232.10642.10641.47001.47002.21362.21362.21362.2136
H31.08782.10641.85413.14783.57253.58623.58624.19604.1960
H41.08782.10641.85413.57253.14784.19604.19603.58623.5862
C52.68721.47003.14783.57251.53951.08931.08932.26412.2641
C62.68721.47003.57253.14781.53952.26412.26411.08931.0893
H73.28182.21363.58624.19601.08932.26411.82503.14332.5592
H83.28182.21363.58624.19601.08932.26411.82502.55923.1433
H93.28182.21364.19603.58622.26411.08933.14332.55921.8250
H103.28182.21364.19603.58622.26411.08932.55923.14331.8250

picture of Methylenecyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 148.424 C1 C2 C6 148.424
C2 C1 H3 121.549 C2 C1 H4 121.549
C2 C5 C6 58.424 C2 C5 H7 118.996
C2 C5 H8 118.996 C2 C6 C5 58.424
C2 C6 H9 118.996 C2 C6 H10 118.996
H3 C1 H4 116.902 C5 C2 C6 63.151
C5 C6 H9 117.910 C5 C6 H10 117.910
C6 C5 H7 117.910 C6 C5 H8 117.910
H7 C5 H8 113.799 H9 C6 H10 113.799
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.436 -0.473   -0.512
2 C 0.221 0.216   0.244
3 H 0.140 0.156   0.174
4 H 0.140 0.156   0.174
5 C -0.358 -0.229   -0.318
6 C -0.358 -0.229   -0.318
7 H 0.163 0.101   0.140
8 H 0.163 0.101   0.138
9 H 0.163 0.101   0.138
10 H 0.163 0.101   0.140


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 -0.411 0.411
CHELPG 0.000 0.000 -0.414 0.414
AIM        
ESP 0.023 0.000 -0.429 0.429


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.892 0.000 0.000
y 0.000 -23.986 0.000
z 0.000 0.000 -24.332
Traceless
 xyz
x -0.734 0.000 0.000
y 0.000 0.626 0.000
z 0.000 0.000 0.108
Polar
3z2-r20.215
x2-y2-0.906
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.960 0.000 0.000
y 0.000 5.784 0.000
z 0.000 0.000 8.219


<r2> (average value of r2) Å2
<r2> 77.098
(<r2>)1/2 8.781