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

using model chemistry: B2PLYP=FULLultrafine/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 B2PLYP=FULLultrafine/daug-cc-pVTZ
 hartrees
Energy at 0K-155.874885
Energy at 298.15K 
HF Energy-155.632957
Nuclear repulsion energy108.535962
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 B2PLYP=FULLultrafine/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' 3287 3287 0.37 125.26 0.28 0.43
2 A' 3128 3128 16.25 80.42 0.70 0.83
3 A' 3058 3058 74.43 184.13 0.10 0.19
4 A' 3048 3048 25.73 231.88 0.02 0.03
5 A' 1851 1851 15.05 64.56 0.11 0.19
6 A' 1536 1536 4.68 9.35 0.32 0.48
7 A' 1497 1497 9.92 10.55 0.50 0.67
8 A' 1416 1416 0.08 5.31 0.52 0.68
9 A' 1195 1195 3.46 8.41 0.38 0.55
10 A' 1092 1092 1.20 3.92 0.07 0.13
11 A' 1063 1063 36.97 3.35 0.24 0.39
12 A' 985 985 4.03 8.85 0.15 0.26
13 A' 950 950 14.55 5.09 0.37 0.54
14 A' 676 676 0.59 13.95 0.57 0.73
15 A' 326 326 1.71 1.82 0.75 0.86
16 A" 3118 3118 40.90 110.80 0.75 0.86
17 A" 3101 3101 15.79 81.40 0.75 0.86
18 A" 1494 1494 8.12 5.40 0.75 0.86
19 A" 1127 1127 1.38 0.55 0.75 0.86
20 A" 1059 1059 0.22 1.57 0.75 0.86
21 A" 998 998 2.14 0.83 0.75 0.86
22 A" 737 737 33.40 1.47 0.75 0.86
23 A" 298 298 13.01 0.25 0.75 0.86
24 A" 164 164 0.27 0.22 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18599.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18599.0 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 B2PLYP=FULLultrafine/daug-cc-pVTZ
ABC
0.69285 0.21342 0.17401

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/daug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.178 0.000
C2 -0.036 -1.327 0.000
C3 1.154 -0.401 0.000
C4 -0.848 1.382 0.000
H5 -0.303 -1.856 0.911
H6 -0.303 -1.856 -0.911
H7 2.225 -0.345 0.000
H8 -0.249 2.290 0.000
H9 -1.496 1.389 -0.876
H10 -1.496 1.389 0.876

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.50531.29121.47212.24872.24872.28612.12652.11472.1147
C21.50531.50812.82741.08651.08652.46553.62303.20533.2053
C31.29121.50812.68042.25162.25161.07283.03463.31573.3157
C41.47212.82742.68043.40663.40663.52511.08781.09011.0901
H52.24871.08652.25163.40661.82173.08304.24463.89143.4568
H62.24871.08652.25163.40661.82173.08304.24463.45683.8914
H72.28612.46551.07283.52513.08303.08303.61484.19804.1980
H82.12653.62303.03461.08784.24464.24463.61481.77041.7704
H92.11473.20533.31571.09013.89143.45684.19801.77041.7530
H102.11473.20533.31571.09013.45683.89144.19801.77041.7530

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 50.743 H1 C2 C6 119.495
C2 C3 C6 24.827 C2 C3 C10 72.579
C2 C6 C3 35.651 C2 C6 H4 49.666
C2 C6 H5 33.033 C3 C2 C6 119.522
C3 C6 H4 51.784 C3 C6 H5 66.138
C3 C10 H7 9.381 C3 C10 H8 65.228
C3 C10 H9 74.672 H4 C6 H5 74.492
C6 C3 C10 86.466 H7 C10 H8 58.841
H7 C10 H9 77.949 H8 C10 H9 60.325
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 2.001      
2 C -1.636      
3 C -1.715      
4 C -0.254      
5 H 0.126      
6 H 0.126      
7 H 0.411      
8 H 0.260      
9 H 0.341      
10 H 0.341      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.166 0.871 0.000 0.887
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.924 -0.627 0.006
y -0.627 -25.580 0.003
z 0.006 0.003 -25.929
Traceless
 xyz
x 1.830 -0.627 0.006
y -0.627 -0.654 0.003
z 0.006 0.003 -1.177
Polar
3z2-r2-2.353
x2-y21.656
xy-0.627
xz0.006
yz0.003


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.684 -0.570 -0.000
y -0.570 8.055 -0.001
z -0.000 -0.001 5.657


<r2> (average value of r2) Å2
<r2> 80.162
(<r2>)1/2 8.953