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

using model chemistry: PBEPBE/aug-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/aug-cc-pVDZ
 hartrees
Energy at 0K-155.743587
Energy at 298.15K 
HF Energy-155.743587
Nuclear repulsion energy107.327149
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/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' 3199 3180 0.45 144.92 0.29 0.45
2 A' 3053 3035 16.15 94.32 0.71 0.83
3 A' 2957 2939 27.49 428.54 0.01 0.02
4 A' 2956 2938 88.30 58.43 0.74 0.85
5 A' 1815 1804 14.94 85.19 0.12 0.22
6 A' 1459 1450 5.56 10.98 0.32 0.49
7 A' 1403 1394 11.18 12.86 0.47 0.64
8 A' 1329 1321 0.39 11.31 0.48 0.64
9 A' 1160 1153 1.37 9.80 0.42 0.59
10 A' 1040 1034 9.40 7.31 0.16 0.28
11 A' 1013 1007 23.32 0.94 0.50 0.67
12 A' 953 948 9.46 6.54 0.18 0.31
13 A' 900 895 12.85 3.76 0.57 0.73
14 A' 663 658 0.81 15.61 0.59 0.74
15 A' 311 309 1.85 2.14 0.75 0.86
16 A" 3023 3005 22.08 120.71 0.75 0.86
17 A" 3020 3002 44.15 117.15 0.75 0.86
18 A" 1398 1389 8.49 5.99 0.75 0.86
19 A" 1070 1064 1.15 0.52 0.75 0.86
20 A" 996 989 0.01 1.90 0.75 0.86
21 A" 941 936 2.50 0.62 0.75 0.86
22 A" 655 651 31.99 1.33 0.75 0.86
23 A" 277 275 13.35 0.16 0.75 0.86
24 A" 165 164 0.36 0.29 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17879.0 cm-1
Scaled (by 0.9939) Zero Point Vibrational Energy (zpe) 17770.0 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/aug-cc-pVDZ
ABC
0.67705 0.20945 0.17071

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.183 0.000
C2 -0.066 -1.335 0.000
C3 1.158 -0.433 0.000
C4 -0.822 1.411 0.000
H5 -0.353 -1.871 0.925
H6 -0.353 -1.871 -0.925
H7 2.249 -0.400 0.000
H8 -0.195 2.321 0.000
H9 -1.484 1.434 -0.889
H10 -1.484 1.434 0.889

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.51991.31181.47782.28022.28022.32352.14682.13462.1346
C21.51991.52042.84871.10661.10662.49693.65883.23563.2356
C31.31181.52042.70612.28152.28151.09173.06853.35503.3550
C41.47782.84872.70613.44203.44203.56571.10571.10831.1083
H52.28021.10662.28153.44201.84973.12894.29583.93573.4931
H62.28021.10662.28153.44201.84973.12894.29583.49313.9357
H72.32352.49691.09173.56573.12893.12893.65734.25324.2532
H82.14683.65883.06851.10574.29584.29583.65731.80021.8002
H92.13463.23563.35501.10833.93573.49314.25321.80021.7775
H102.13463.23563.35501.10833.49313.93574.25321.80021.7775

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 51.122 H1 C2 C6 119.656
C2 C3 C6 24.910 C2 C3 C10 72.319
C2 C6 C3 35.357 C2 C6 H4 49.406
C2 C6 H5 33.306 C3 C2 C6 119.733
C3 C6 H4 51.721 C3 C6 H5 66.085
C3 C10 H7 9.423 C3 C10 H8 65.125
C3 C10 H9 74.639 H4 C6 H5 74.413
C6 C3 C10 86.362 H7 C10 H8 58.703
H7 C10 H9 77.939 H8 C10 H9 60.416
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.287      
2 C 0.873      
3 C 0.569      
4 C 0.221      
5 H -0.488      
6 H -0.488      
7 H -0.664      
8 H -0.130      
9 H -0.089      
10 H -0.089      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.179 0.924 0.000 0.941
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.999 -0.743 0.000
y -0.743 -25.637 0.000
z 0.000 0.000 -26.026
Traceless
 xyz
x 1.833 -0.743 0.000
y -0.743 -0.624 0.000
z 0.000 0.000 -1.208
Polar
3z2-r2-2.417
x2-y21.638
xy-0.743
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.150 -0.672 0.000
y -0.672 8.690 0.000
z 0.000 0.000 5.933


<r2> (average value of r2) Å2
<r2> 81.555
(<r2>)1/2 9.031