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All results from a given calculation for C4H8 (methylcyclopropane)

using model chemistry: TPSSh/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at TPSSh/aug-cc-pVDZ
 hartrees
Energy at 0K-157.245494
Energy at 298.15K-157.254041
HF Energy-157.245494
Nuclear repulsion energy123.749974
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/aug-cc-pVDZ
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' 3219 3113 36.51      
2 A' 3138 3035 23.13      
3 A' 3125 3023 18.16      
4 A' 3086 2985 26.65      
5 A' 3015 2917 44.75      
6 A' 1511 1461 1.07      
7 A' 1493 1444 6.81      
8 A' 1417 1370 2.66      
9 A' 1383 1338 3.47      
10 A' 1230 1190 0.04      
11 A' 1206 1166 0.05      
12 A' 1038 1004 3.59      
13 A' 1000 967 10.79      
14 A' 931 900 2.10      
15 A' 791 766 5.98      
16 A' 761 736 0.88      
17 A' 354 342 0.21      
18 A" 3203 3099 0.36      
19 A" 3120 3018 33.65      
20 A" 3081 2980 38.75      
21 A" 1481 1433 1.53      
22 A" 1465 1417 1.65      
23 A" 1186 1147 0.58      
24 A" 1126 1089 0.00      
25 A" 1100 1064 3.02      
26 A" 1048 1013 0.96      
27 A" 875 846 8.78      
28 A" 802 776 3.55      
29 A" 335 324 0.49      
30 A" 223 216 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 23870.5 cm-1
Scaled (by 0.9673) Zero Point Vibrational Energy (zpe) 23089.9 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 TPSSh/aug-cc-pVDZ
ABC
0.51755 0.21003 0.18450

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.347 0.405 0.000
C2 -0.883 1.287 0.000
H3 1.296 0.946 0.000
C4 0.347 -0.903 0.757
C5 0.347 -0.903 -0.757
H6 1.259 -1.208 1.271
H7 1.259 -1.208 -1.271
H8 -0.574 -1.193 1.264
H9 -0.574 -1.193 -1.264
H10 -1.798 0.677 0.000
H11 -0.909 1.933 0.891
H12 -0.909 1.933 -0.891

Atom - Atom Distances (Å)
  C1 C2 H3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.51361.09211.51141.51142.24632.24632.23602.23602.16272.16952.1695
C21.51362.20562.62342.62343.52473.52472.80062.80061.10001.10061.1006
H31.09212.20562.21182.21182.50072.50073.10953.10953.10612.57502.5750
C41.51142.62342.21181.51471.08952.24411.09052.24022.76993.10483.5125
C51.51142.62342.21181.51472.24411.08952.24021.09052.76993.51253.1048
H62.24633.52472.50071.08952.24412.54111.83263.12773.80933.83524.3857
H72.24633.52472.50072.24411.08952.54113.12771.83263.80934.38573.8352
H82.23602.80063.10951.09052.24021.83263.12772.52802.56773.16633.8115
H92.23602.80063.10952.24021.09053.12771.83262.52802.56773.81153.1663
H102.16271.10003.10612.76992.76993.80933.80932.56772.56771.77831.7783
H112.16951.10062.57503.10483.51253.83524.38573.16633.81151.77831.7810
H122.16951.10062.57503.51253.10484.38573.83523.81153.16631.77831.7810

picture of methylcyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H10 110.682 C1 C2 H11 111.189
C1 C2 H12 111.189 C1 C4 H5 59.928
C1 C4 H6 118.556 C1 C4 H8 117.582
C1 H5 C4 59.928 C1 H5 H7 118.556
C1 H5 H9 117.582 C2 C1 C3 114.682
C2 C1 C4 120.276 C2 C1 H5 120.276
C3 C1 C4 115.377 C3 C1 H5 115.377
C4 C1 H5 60.144 C4 H5 H7 118.100
C4 H5 H9 117.684 H5 C4 H6 118.100
H5 C4 H8 117.684 H6 C4 H8 114.419
H7 H5 H9 114.419 H10 C2 H11 107.812
H10 C2 H12 107.812 H11 C2 H12 108.012
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.679      
2 C 0.227      
3 H -0.486      
4 C 0.937      
5 C 0.937      
6 H -0.486      
7 H -0.486      
8 H -0.475      
9 H -0.475      
10 H -0.214      
11 H -0.078      
12 H -0.078      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.050 0.125 0.000 0.134
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 6.976 -0.566 0.000
y -0.566 7.914 0.000
z 0.000 0.000 7.296


<r2> (average value of r2) Å2
<r2> 84.176
(<r2>)1/2 9.175