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

using model chemistry: PBEPBE/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBE/daug-cc-pVDZ
 hartrees
Energy at 0K-155.744533
Energy at 298.15K 
HF Energy-155.744533
Nuclear repulsion energy107.351826
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 PBEPBE/daug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3198 3198 0.41 146.75 0.29 0.45
2 A' 3051 3051 16.82 95.77 0.71 0.83
3 A' 2955 2955 28.42 440.35 0.01 0.02
4 A' 2954 2954 90.97 58.14 0.75 0.86
5 A' 1815 1815 14.96 86.45 0.12 0.21
6 A' 1459 1459 5.70 11.55 0.31 0.47
7 A' 1406 1406 11.12 13.18 0.47 0.64
8 A' 1329 1329 0.33 11.66 0.47 0.64
9 A' 1161 1161 1.36 9.21 0.43 0.60
10 A' 1041 1041 9.45 6.97 0.15 0.27
11 A' 1014 1014 23.54 0.89 0.53 0.69
12 A' 954 954 9.01 6.41 0.18 0.30
13 A' 900 900 13.08 3.78 0.58 0.74
14 A' 663 663 0.84 15.50 0.58 0.74
15 A' 311 311 1.89 2.19 0.75 0.86
16 A" 3021 3021 32.87 129.21 0.75 0.86
17 A" 3018 3018 35.19 110.79 0.75 0.86
18 A" 1401 1401 8.50 6.17 0.75 0.86
19 A" 1069 1069 1.13 0.56 0.75 0.86
20 A" 996 996 0.02 1.79 0.75 0.86
21 A" 941 941 2.55 0.68 0.75 0.86
22 A" 653 653 31.50 1.22 0.75 0.86
23 A" 275 275 13.12 0.14 0.75 0.86
24 A" 164 164 0.46 0.28 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17873.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 17873.0 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 PBEPBE/daug-cc-pVDZ
ABC
0.67768 0.20946 0.17074

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.183 0.000
C2 -0.069 -1.335 0.000
C3 1.156 -0.436 0.000
C4 -0.818 1.414 0.000
H5 -0.357 -1.870 0.924
H6 -0.357 -1.870 -0.924
H7 2.247 -0.405 0.000
H8 -0.188 2.321 0.000
H9 -1.479 1.438 -0.888
H10 -1.479 1.438 0.888

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.51971.31171.47782.27972.27972.32222.14662.13392.1339
C21.51971.51992.84901.10601.10602.49593.65843.23573.2357
C31.31171.51992.70562.28062.28061.09073.06783.35413.3541
C41.47782.84902.70563.44243.44243.56341.10481.10771.1077
H52.27971.10602.28063.44241.84843.12774.29553.93583.4939
H62.27971.10602.28063.44241.84843.12774.29553.49393.9358
H72.32222.49591.09073.56343.12773.12773.65494.25074.2507
H82.14663.65843.06781.10484.29554.29553.65491.79891.7989
H92.13393.23573.35411.10773.93583.49394.25071.79891.7765
H102.13393.23573.35411.10773.49393.93584.25071.79891.7765

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 51.130 H1 C2 C6 119.677
C2 C3 C6 24.904 C2 C3 C10 72.356
C2 C6 C3 35.358 C2 C6 H4 49.387
C2 C6 H5 33.323 C3 C2 C6 119.738
C3 C6 H4 51.701 C3 C6 H5 66.094
C3 C10 H7 9.436 C3 C10 H8 65.132
C3 C10 H9 74.644 H4 C6 H5 74.427
C6 C3 C10 86.400 H7 C10 H8 58.695
H7 C10 H9 77.939 H8 C10 H9 60.412
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.685      
2 C 1.880      
3 C 1.639      
4 C 0.229      
5 H -0.808      
6 H -0.808      
7 H -0.847      
8 H -0.331      
9 H -0.136      
10 H -0.136      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.180 0.920 0.000 0.937
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.016 -0.750 0.000
y -0.750 -25.602 0.000
z 0.000 0.000 -26.048
Traceless
 xyz
x 1.809 -0.750 0.000
y -0.750 -0.570 0.000
z 0.000 0.000 -1.239
Polar
3z2-r2-2.477
x2-y21.586
xy-0.750
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.192 -0.654 0.000
y -0.654 8.721 0.000
z 0.000 0.000 5.992


<r2> (average value of r2) Å2
<r2> 81.536
(<r2>)1/2 9.030