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

using model chemistry: B1B95/6-31+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 B1B95/6-31+G**
 hartrees
Energy at 0K-157.140536
Energy at 298.15K-157.148368
Nuclear repulsion energy119.793460
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 B1B95/6-31+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 3164 3027 8.90      
2 A1 3151 3014 19.66      
3 A1 3045 2913 39.83      
4 A1 1740 1665 23.01      
5 A1 1500 1435 15.44      
6 A1 1443 1380 1.89      
7 A1 1405 1344 0.63      
8 A1 1076 1030 3.21      
9 A1 830 794 0.15      
10 A1 373 357 0.22      
11 A2 3102 2967 0.00      
12 A2 1468 1404 0.00      
13 A2 1012 968 0.00      
14 A2 696 666 0.00      
15 A2 163 156 0.00      
16 B1 3103 2969 38.34      
17 B1 1487 1422 21.15      
18 B1 1097 1049 0.01      
19 B1 914 875 56.06      
20 B1 435 416 9.85      
21 B1 206 197 0.83      
22 B2 3251 3110 19.59      
23 B2 3150 3013 25.97      
24 B2 3041 2909 23.63      
25 B2 1479 1415 5.33      
26 B2 1410 1349 14.19      
27 B2 1302 1246 2.55      
28 B2 987 944 0.18      
29 B2 956 915 0.08      
30 B2 434 415 1.34      

Unscaled Zero Point Vibrational Energy (zpe) 23710.1 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 22681.1 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 B1B95/6-31+G**
ABC
0.30569 0.28099 0.15477

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31+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 1.457
H3 0.000 0.925 2.025
H4 0.000 -0.925 2.025
C5 0.000 1.271 -0.677
C6 0.000 -1.271 -0.677
H7 0.000 2.154 -0.036
H8 0.878 1.321 -1.330
H9 -0.878 1.321 -1.330
H10 0.000 -2.154 -0.036
H11 -0.878 -1.321 -1.330
H12 0.878 -1.321 -1.330

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10 H11 H12
C11.33602.11682.11681.50101.50102.15972.15022.15022.15972.15022.1502
C21.33601.08551.08552.48422.48422.62073.20733.20732.62073.20733.2073
H32.11681.08551.85022.72453.48222.39943.49113.49113.70514.13234.1323
H42.11681.08551.85023.48222.72453.70514.13234.13232.39943.49113.4911
C51.50102.48422.72453.48222.54201.09151.09571.09573.48462.81372.8137
C61.50102.48423.48222.72452.54203.48462.81372.81371.09151.09571.0957
H72.15972.62072.39943.70511.09153.48461.77251.77254.30803.81103.8110
H82.15023.20733.49114.13231.09572.81371.77251.75693.81103.17282.6420
H92.15023.20733.49114.13231.09572.81371.77251.75693.81102.64203.1728
H102.15972.62073.70512.39943.48461.09154.30803.81103.81101.77251.7725
H112.15023.20734.13233.49112.81371.09573.81103.17282.64201.77251.7569
H122.15023.20734.13233.49112.81371.09573.81102.64203.17281.77251.7569

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 121.550 C1 C2 H4 121.550
C1 C5 H7 111.861 C1 C5 H8 110.835
C1 C5 H9 110.835 C1 C6 H10 111.861
C1 C6 H11 110.835 C1 C6 H12 110.835
C2 C1 C5 122.137 C2 C1 C6 122.137
H3 C2 H4 116.900 C5 C1 C6 115.726
H7 C5 H8 108.265 H7 C5 H9 108.265
H8 C5 H9 106.584 H10 C6 H11 108.265
H10 C6 H12 108.265 H11 C6 H12 106.584
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.408      
2 C -0.397      
3 H 0.136      
4 H 0.136      
5 C -0.629      
6 C -0.629      
7 H 0.160      
8 H 0.164      
9 H 0.164      
10 H 0.160      
11 H 0.164      
12 H 0.164      


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 -0.594 0.594
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.406 0.000 0.000
y 0.000 -25.711 0.000
z 0.000 0.000 -26.298
Traceless
 xyz
x -2.402 0.000 0.000
y 0.000 1.641 0.000
z 0.000 0.000 0.760
Polar
3z2-r21.521
x2-y2-2.695
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.596 0.000 0.000
y 0.000 7.079 0.000
z 0.000 0.000 9.150


<r2> (average value of r2) Å2
<r2> 90.802
(<r2>)1/2 9.529