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

using model chemistry: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-157.199371
Energy at 298.15K-157.207238
Nuclear repulsion energy119.726864
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 mPW1PW91/6-31+G**
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 3176 3022 8.81      
2 A1 3160 3007 18.41      
3 A1 3053 2906 39.69      
4 A1 1744 1660 24.18      
5 A1 1509 1436 16.77      
6 A1 1450 1380 1.98      
7 A1 1416 1348 0.76      
8 A1 1086 1033 3.34      
9 A1 833 793 0.16      
10 A1 379 361 0.28      
11 A2 3110 2960 0.00      
12 A2 1477 1406 0.00      
13 A2 1020 971 0.00      
14 A2 701 667 0.00      
15 A2 165 157 0.00      
16 B1 3112 2962 36.63      
17 B1 1496 1424 22.21      
18 B1 1106 1053 0.00      
19 B1 922 878 60.19      
20 B1 440 419 10.20      
21 B1 209 199 0.81      
22 B2 3263 3105 17.82      
23 B2 3158 3006 25.12      
24 B2 3048 2902 22.87      
25 B2 1488 1417 5.77      
26 B2 1421 1352 15.21      
27 B2 1311 1247 2.63      
28 B2 991 943 0.11      
29 B2 965 918 0.10      
30 B2 437 416 1.23      

Unscaled Zero Point Vibrational Energy (zpe) 23822.4 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 22674.2 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 mPW1PW91/6-31+G**
ABC
0.30527 0.28068 0.15458

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

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 2.026
H4 0.000 -0.925 2.026
C5 0.000 1.272 -0.678
C6 0.000 -1.272 -0.678
H7 0.000 2.155 -0.037
H8 0.879 1.322 -1.331
H9 -0.879 1.322 -1.331
H10 0.000 -2.155 -0.037
H11 -0.879 -1.322 -1.331
H12 0.879 -1.322 -1.331

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10 H11 H12
C11.33682.11752.11751.50201.50202.16112.15152.15152.16112.15152.1515
C21.33681.08561.08562.48602.48602.62303.20933.20932.62303.20933.2093
H32.11751.08561.85042.72613.48392.40173.49293.49293.70744.13424.1342
H42.11751.08561.85043.48392.72613.70744.13424.13422.40173.49293.4929
C51.50202.48602.72613.48392.54351.09181.09611.09613.48662.81512.8151
C61.50202.48603.48392.72612.54353.48662.81512.81511.09181.09611.0961
H72.16112.62302.40173.70741.09183.48661.77291.77294.31073.81283.8128
H82.15153.20933.49294.13421.09612.81511.77291.75743.81283.17422.6433
H92.15153.20933.49294.13421.09612.81511.77291.75743.81282.64333.1742
H102.16112.62303.70742.40173.48661.09184.31073.81283.81281.77291.7729
H112.15153.20934.13423.49292.81511.09613.81283.17422.64331.77291.7574
H122.15153.20934.13423.49292.81511.09613.81282.64333.17421.77291.7574

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 121.542 C1 C2 H4 121.542
C1 C5 H7 111.884 C1 C5 H8 110.837
C1 C5 H9 110.837 C1 C6 H10 111.884
C1 C6 H11 110.837 C1 C6 H12 110.837
C2 C1 C5 122.147 C2 C1 C6 122.147
H3 C2 H4 116.915 C5 C1 C6 115.705
H7 C5 H8 108.254 H7 C5 H9 108.254
H8 C5 H9 106.577 H10 C6 H11 108.254
H10 C6 H12 108.254 H11 C6 H12 106.577
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.493      
2 C -0.443      
3 H 0.148      
4 H 0.148      
5 C -0.689      
6 C -0.689      
7 H 0.170      
8 H 0.173      
9 H 0.173      
10 H 0.170      
11 H 0.173      
12 H 0.173      


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 -0.608 0.608
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.425 0.000 0.000
y 0.000 -25.611 0.000
z 0.000 0.000 -26.212
Traceless
 xyz
x -2.513 0.000 0.000
y 0.000 1.707 0.000
z 0.000 0.000 0.806
Polar
3z2-r21.611
x2-y2-2.813
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> 90.855
(<r2>)1/2 9.532