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All results from a given calculation for C4H6 (1-Methylcyclopropene)

using model chemistry: TPSSh/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at TPSSh/cc-pVQZ
 hartrees
Energy at 0K-156.025730
Energy at 298.15K 
HF Energy-156.025730
Nuclear repulsion energy108.391225
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 TPSSh/cc-pVQZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3256 3256 0.32 131.03 0.30 0.46
2 A' 3094 3094 20.54 88.57 0.70 0.82
3 A' 3015 3015 68.10 287.54 0.05 0.09
4 A' 3013 3013 51.61 128.57 0.10 0.18
5 A' 1849 1849 14.82 66.49 0.15 0.26
6 A' 1530 1530 6.80 12.58 0.31 0.48
7 A' 1491 1491 9.49 12.28 0.56 0.71
8 A' 1409 1409 0.27 8.67 0.47 0.64
9 A' 1193 1193 1.87 7.75 0.37 0.54
10 A' 1087 1087 7.07 3.99 0.12 0.21
11 A' 1067 1067 30.93 0.48 0.53 0.70
12 A' 980 980 4.42 8.76 0.28 0.43
13 A' 946 946 13.43 5.51 0.46 0.63
14 A' 683 683 0.57 14.80 0.55 0.71
15 A' 322 322 1.80 1.84 0.75 0.86
16 A" 3073 3073 49.27 116.06 0.75 0.86
17 A" 3063 3063 23.20 89.14 0.75 0.86
18 A" 1487 1487 7.31 6.62 0.75 0.86
19 A" 1121 1121 1.69 0.82 0.75 0.86
20 A" 1050 1050 0.17 2.35 0.75 0.86
21 A" 991 991 2.22 2.28 0.75 0.86
22 A" 733 733 31.19 0.73 0.75 0.86
23 A" 300 300 11.80 0.36 0.75 0.86
24 A" 163 163 0.40 0.27 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18458.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18458.3 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 TPSSh/cc-pVQZ
ABC
0.69326 0.21255 0.17351

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.178 0.000
C2 -0.036 -1.328 0.000
C3 1.153 -0.405 0.000
C4 -0.846 1.386 0.000
H5 -0.307 -1.860 0.913
H6 -0.307 -1.860 -0.913
H7 2.227 -0.350 0.000
H8 -0.244 2.296 0.000
H9 -1.497 1.394 -0.878
H10 -1.497 1.394 0.878

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.50701.29211.47452.25472.25472.28892.13182.11922.1192
C21.50701.50512.83261.09061.09062.46573.63033.21213.2121
C31.29211.50512.68392.25412.25411.07583.04133.32133.3213
C41.47452.83262.68393.41523.41523.52941.09071.09351.0935
H52.25471.09062.25413.41521.82533.08804.25603.90103.4657
H62.25471.09062.25413.41521.82533.08804.25603.46573.9010
H72.28892.46571.07583.52943.08803.08803.62084.20514.2051
H82.13183.63033.04131.09074.25604.25603.62081.77591.7759
H92.11923.21213.32131.09353.90103.46574.20511.77591.7569
H102.11923.21213.32131.09353.46573.90104.20511.77591.7569

picture of 1-Methylcyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C3 50.803 H1 C2 C6 119.590
C2 C3 C6 24.855 C2 C3 C10 72.668
C2 C6 C3 35.453 C2 C6 H4 49.584
C2 C6 H5 33.196 C3 C2 C6 119.692
C3 C6 H4 51.705 C3 C6 H5 66.116
C3 C10 H7 9.415 C3 C10 H8 65.268
C3 C10 H9 74.663 H4 C6 H5 74.500
C6 C3 C10 86.576 H7 C10 H8 58.847
H7 C10 H9 77.942 H8 C10 H9 60.353
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.065      
2 C -0.269      
3 C -0.326      
4 C -0.480      
5 H 0.137      
6 H 0.137      
7 H 0.215      
8 H 0.169      
9 H 0.176      
10 H 0.176      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.166 0.893 0.000 0.908
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.555 -0.622 0.000
y -0.622 8.014 0.000
z 0.000 0.000 5.412


<r2> (average value of r2) Å2
<r2> 80.161
(<r2>)1/2 8.953