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All results from a given calculation for CH2C(CH3)CH3 (1-Propene, 2-methyl-)

using model chemistry: B3PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/6-31G**
 hartrees
Energy at 0K-157.178879
Energy at 298.15K-157.186737
Nuclear repulsion energy119.612412
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 B3PW91/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3159 3028 8.62      
2 A1 3145 3014 19.87      
3 A1 3038 2912 36.79      
4 A1 1746 1674 15.71      
5 A1 1509 1446 10.94      
6 A1 1450 1389 0.70      
7 A1 1416 1357 0.24      
8 A1 1085 1039 4.64      
9 A1 828 794 0.12      
10 A1 376 360 0.34      
11 A2 3092 2964 0.00      
12 A2 1477 1415 0.00      
13 A2 1021 978 0.00      
14 A2 703 674 0.00      
15 A2 170 163 0.00      
16 B1 3095 2966 46.49      
17 B1 1496 1434 16.84      
18 B1 1105 1059 1.10      
19 B1 916 877 44.60      
20 B1 437 419 6.43      
21 B1 209 200 0.71      
22 B2 3246 3111 19.05      
23 B2 3143 3012 22.25      
24 B2 3033 2907 20.08      
25 B2 1490 1428 4.38      
26 B2 1418 1359 9.80      
27 B2 1306 1251 3.46      
28 B2 988 947 0.10      
29 B2 963 923 0.22      
30 B2 435 417 1.40      

Unscaled Zero Point Vibrational Energy (zpe) 23746.8 cm-1
Scaled (by 0.9584) Zero Point Vibrational Energy (zpe) 22758.9 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 B3PW91/6-31G**
ABC
0.30530 0.27963 0.15427

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.121
C2 0.000 0.000 1.458
H3 0.000 0.925 2.028
H4 0.000 -0.925 2.028
C5 0.000 1.274 -0.677
C6 0.000 -1.274 -0.677
H7 0.000 2.158 -0.035
H8 0.879 1.327 -1.333
H9 -0.879 1.327 -1.333
H10 0.000 -2.158 -0.035
H11 -0.879 -1.327 -1.333
H12 0.879 -1.327 -1.333

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10 H11 H12
C11.33622.11892.11891.50371.50372.16402.15612.15612.16402.15612.1561
C21.33621.08691.08692.48622.48622.62413.21243.21242.62413.21243.2124
H32.11891.08691.85072.72743.48632.40303.49663.49663.70994.13994.1399
H42.11891.08691.85073.48632.72743.70994.13994.13992.40303.49663.4966
C51.50372.48622.72743.48632.54811.09301.09771.09773.49192.82282.8228
C61.50372.48623.48632.72742.54813.49192.82282.82281.09301.09771.0977
H72.16402.62412.40303.70991.09303.49191.77421.77424.31663.82173.8217
H82.15613.21243.49664.13991.09772.82281.77421.75793.82173.18372.6544
H92.15613.21243.49664.13991.09772.82281.77421.75793.82172.65443.1837
H102.16402.62413.70992.40303.49191.09304.31663.82173.82171.77421.7742
H112.15613.21244.13993.49662.82281.09773.82173.18372.65441.77421.7579
H122.15613.21244.13993.49662.82281.09773.82172.65443.18371.77421.7579

picture of 1-Propene, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H3 121.634 C1 C2 H4 121.634
C1 C5 H7 111.913 C1 C5 H8 110.989
C1 C5 H9 110.989 C1 C6 H10 111.913
C1 C6 H11 110.989 C1 C6 H12 110.989
C2 C1 C5 122.088 C2 C1 C6 122.088
H3 C2 H4 116.732 C5 C1 C6 115.825
H7 C5 H8 108.164 H7 C5 H9 108.164
H8 C5 H9 106.404 H10 C6 H11 108.164
H10 C6 H12 108.164 H11 C6 H12 106.404
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.143      
2 C -0.327      
3 H 0.112      
4 H 0.112      
5 C -0.427      
6 C -0.427      
7 H 0.135      
8 H 0.136      
9 H 0.136      
10 H 0.135      
11 H 0.136      
12 H 0.136      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.542 0.542
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.572 0.000 0.000
y 0.000 -25.110 0.000
z 0.000 0.000 -25.568
Traceless
 xyz
x -2.233 0.000 0.000
y 0.000 1.460 0.000
z 0.000 0.000 0.773
Polar
3z2-r21.546
x2-y2-2.462
xy0.000
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 90.605
(<r2>)1/2 9.519