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

using model chemistry: BLYP/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at BLYP/daug-cc-pVTZ
 hartrees
Energy at 0K-155.919857
Energy at 298.15K 
HF Energy-155.919857
Nuclear repulsion energy107.696430
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 BLYP/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 A' 3176 3176 0.64 144.95 0.30 0.46
2 A' 3011 3011 21.23 99.22 0.68 0.81
3 A' 2945 2945 73.73 290.71 0.06 0.11
4 A' 2941 2941 46.20 186.02 0.07 0.13
5 A' 1791 1791 15.51 79.49 0.12 0.21
6 A' 1485 1485 6.30 12.36 0.28 0.44
7 A' 1445 1445 10.11 12.89 0.48 0.65
8 A' 1370 1370 0.29 11.52 0.43 0.60
9 A' 1140 1140 2.21 9.32 0.37 0.54
10 A' 1045 1045 1.22 2.99 0.08 0.16
11 A' 1017 1017 38.76 1.98 0.31 0.47
12 A' 939 939 1.22 8.41 0.22 0.35
13 A' 910 910 13.61 5.59 0.42 0.59
14 A' 640 640 0.36 15.18 0.59 0.74
15 A' 315 315 1.68 2.35 0.75 0.86
16 A" 2998 2998 51.86 137.41 0.75 0.86
17 A" 2979 2979 18.97 99.22 0.75 0.86
18 A" 1441 1441 7.41 6.11 0.75 0.86
19 A" 1090 1090 1.35 0.63 0.75 0.86
20 A" 1020 1020 0.21 1.37 0.75 0.86
21 A" 960 960 2.21 0.81 0.75 0.86
22 A" 697 697 31.64 1.46 0.75 0.86
23 A" 288 288 12.53 0.16 0.75 0.86
24 A" 160 160 0.35 0.27 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17902.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 17902.1 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 BLYP/daug-cc-pVTZ
ABC
0.68205 0.21020 0.17133

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.180 0.000
C2 -0.038 -1.340 0.000
C3 1.160 -0.404 0.000
C4 -0.849 1.393 0.000
H5 -0.310 -1.875 0.917
H6 -0.310 -1.875 -0.917
H7 2.240 -0.344 0.000
H8 -0.247 2.310 0.000
H9 -1.506 1.405 -0.882
H10 -1.506 1.405 0.882

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.52031.29891.48102.27152.27152.30032.14412.13242.1324
C21.52031.52052.85111.09591.09592.48603.65563.23563.2356
C31.29891.52052.69592.27292.27291.08123.05673.34063.3406
C41.48102.85112.69593.43723.43723.54421.09671.09941.0994
H52.27151.09592.27293.43721.83383.11204.28463.92783.4920
H62.27151.09592.27293.43721.83383.11204.28463.49203.9278
H72.30032.48601.08123.54423.11203.11203.63694.22724.2272
H82.14413.65563.05671.09674.28464.28463.63691.78351.7835
H92.13243.23563.34061.09943.92783.49204.22721.78351.7634
H102.13243.23563.34061.09943.49203.92784.22721.78351.7634

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 50.572 H1 C2 C6 119.630
C2 C3 C6 24.750 C2 C3 C10 72.809
C2 C6 C3 35.515 C2 C6 H4 49.560
C2 C6 H5 33.207 C3 C2 C6 119.735
C3 C6 H4 51.567 C3 C6 H5 66.208
C3 C10 H7 9.446 C3 C10 H8 65.208
C3 C10 H9 74.697 H4 C6 H5 74.529
C6 C3 C10 86.610 H7 C10 H8 58.745
H7 C10 H9 77.961 H8 C10 H9 60.372
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.724      
2 C -1.276      
3 C -1.422      
4 C 0.104      
5 H -0.037      
6 H -0.037      
7 H 0.349      
8 H 0.174      
9 H 0.210      
10 H 0.210      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.186 0.902 0.000 0.921
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.256 -0.652 0.000
y -0.652 -25.855 0.000
z 0.000 0.000 -26.158
Traceless
 xyz
x 1.751 -0.652 0.000
y -0.652 -0.648 0.000
z 0.000 0.000 -1.103
Polar
3z2-r2-2.206
x2-y21.599
xy-0.652
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.161 -0.642 0.000
y -0.642 8.646 0.000
z 0.000 0.000 5.957


<r2> (average value of r2) Å2
<r2> 81.362
(<r2>)1/2 9.020