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

using model chemistry: B3LYP/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 B3LYP/cc-pVDZ
 hartrees
Energy at 0K-155.949823
Energy at 298.15K 
HF Energy-155.949823
Nuclear repulsion energy107.712858
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 B3LYP/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' 3264 3166 0.17 130.77 0.30 0.46
2 A' 3110 3016 17.31 98.20 0.72 0.84
3 A' 3020 2929 23.12 241.52 0.01 0.02
4 A' 3011 2920 84.74 128.73 0.20 0.34
5 A' 1871 1814 12.53 58.91 0.21 0.35
6 A' 1493 1448 6.87 16.66 0.39 0.56
7 A' 1450 1406 9.12 20.11 0.66 0.80
8 A' 1387 1345 0.59 14.62 0.57 0.72
9 A' 1191 1155 1.60 6.70 0.48 0.65
10 A' 1075 1043 11.98 3.09 0.26 0.41
11 A' 1052 1020 24.78 0.19 0.65 0.79
12 A' 976 947 4.73 8.05 0.42 0.60
13 A' 929 901 14.11 8.03 0.60 0.75
14 A' 676 655 0.61 17.23 0.61 0.76
15 A' 318 309 1.65 1.88 0.74 0.85
16 A" 3078 2986 0.79 98.04 0.75 0.86
17 A" 3075 2983 74.90 119.20 0.75 0.86
18 A" 1446 1402 7.72 14.13 0.75 0.86
19 A" 1102 1069 0.53 2.91 0.75 0.86
20 A" 1035 1004 0.98 3.94 0.75 0.86
21 A" 973 944 2.65 7.91 0.75 0.86
22 A" 728 706 23.95 0.88 0.75 0.86
23 A" 297 288 9.39 1.01 0.75 0.86
24 A" 163 159 0.49 0.34 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18359.0 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 17808.3 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 B3LYP/cc-pVDZ
ABC
0.68293 0.21053 0.17170

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.180 0.000
C2 -0.045 -1.334 0.000
C3 1.158 -0.414 0.000
C4 -0.840 1.396 0.000
H5 -0.325 -1.872 0.921
H6 -0.325 -1.872 -0.921
H7 2.243 -0.363 0.000
H8 -0.230 2.313 0.000
H9 -1.500 1.412 -0.885
H10 -1.500 1.412 0.885

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.51451.30161.47822.27252.27252.30762.14572.13282.1328
C21.51451.51422.84351.10251.10252.48573.65183.23053.2305
C31.30161.51422.69632.27412.27411.08633.06073.34363.3436
C41.47822.84352.69633.43443.43443.54941.10101.10371.1037
H52.27251.10252.27413.43441.84123.11774.28643.92713.4877
H62.27251.10252.27413.43441.84123.11774.28643.48773.9271
H72.30762.48571.08633.54943.11773.11773.64394.23524.2352
H82.14573.65183.06071.10104.28644.28643.64391.79061.7906
H92.13283.23053.34361.10373.92713.48774.23521.79061.7697
H102.13283.23053.34361.10373.48773.92714.23521.79061.7697

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 50.903 H1 C2 C6 119.706
C2 C3 C6 24.860 C2 C3 C10 72.549
C2 C6 C3 35.268 C2 C6 H4 49.430
C2 C6 H5 33.382 C3 C2 C6 119.872
C3 C6 H4 51.629 C3 C6 H5 66.119
C3 C10 H7 9.457 C3 C10 H8 65.224
C3 C10 H9 74.655 H4 C6 H5 74.451
C6 C3 C10 86.499 H7 C10 H8 58.763
H7 C10 H9 77.941 H8 C10 H9 60.386
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.020      
2 C 0.004      
3 C -0.124      
4 C 0.025      
5 H 0.009      
6 H 0.009      
7 H -0.025      
8 H 0.038      
9 H 0.042      
10 H 0.042      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.159 0.937 0.000 0.950
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.537 -0.668 0.000
y -0.668 -25.252 0.000
z 0.000 0.000 -25.567
Traceless
 xyz
x 1.873 -0.668 0.000
y -0.668 -0.700 0.000
z 0.000 0.000 -1.173
Polar
3z2-r2-2.346
x2-y21.715
xy-0.668
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.910 -0.584 0.000
y -0.584 7.292 0.000
z 0.000 0.000 4.487


<r2> (average value of r2) Å2
<r2> 80.899
(<r2>)1/2 8.994