return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C5H10 (1-Butene, 2-methyl-)

using model chemistry: B3LYP/cc-pVTZ

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-pVTZ
 hartrees
Energy at 0K-196.616175
Energy at 298.15K-196.626341
Nuclear repulsion energy175.865473
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-pVTZ
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 3205 3098 19.90      
2 A 3129 3024 10.82      
3 A 3103 2999 22.10      
4 A 3097 2994 42.97      
5 A 3091 2987 36.10      
6 A 3059 2957 18.89      
7 A 3056 2954 16.97      
8 A 3031 2930 28.51      
9 A 3016 2915 28.08      
10 A 3002 2902 26.36      
11 A 1711 1653 20.70      
12 A 1511 1461 3.27      
13 A 1504 1453 5.28      
14 A 1498 1448 12.14      
15 A 1489 1440 9.12      
16 A 1478 1428 2.95      
17 A 1450 1402 0.14      
18 A 1414 1366 4.01      
19 A 1410 1363 3.40      
20 A 1353 1308 1.76      
21 A 1312 1269 1.16      
22 A 1274 1232 1.48      
23 A 1120 1083 0.63      
24 A 1098 1061 4.27      
25 A 1053 1017 0.85      
26 A 1018 984 0.19      
27 A 1005 972 1.09      
28 A 939 908 1.88      
29 A 930 899 41.76      
30 A 803 776 1.58      
31 A 774 748 0.99      
32 A 727 703 0.14      
33 A 540 522 6.80      
34 A 435 421 1.73      
35 A 400 386 0.76      
36 A 262 253 0.31      
37 A 223 216 0.35      
38 A 184 178 0.17      
39 A 72 69 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 29888.0 cm-1
Scaled (by 0.9666) Zero Point Vibrational Energy (zpe) 28889.8 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-pVTZ
ABC
0.24260 0.12452 0.09477

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.000 1.325 0.022
H2 0.377 1.885 -0.679
H3 2.037 1.429 -0.294
H4 0.888 1.810 0.996
C5 -1.914 0.085 -0.393
H6 -1.882 1.166 -0.532
H7 -2.903 -0.165 -0.006
H8 -1.807 -0.382 -1.373
C9 -0.820 -0.402 0.567
H10 -0.934 -1.475 0.726
H11 -0.970 0.077 1.541
C12 0.587 -0.120 0.095
C13 1.421 -1.104 -0.231
H14 1.124 -2.143 -0.169
H15 2.430 -0.905 -0.570

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 H8 C9 H10 H11 C12 C13 H14 H15
C11.09251.08901.09403.19352.93834.17733.56872.56693.47512.78321.50482.47823.47572.7146
H21.09251.76441.75282.92732.37453.92583.22332.86633.87133.16472.16023.19824.12893.4663
H31.08901.76441.76874.17413.93435.19824.38363.50014.27773.77302.15712.60713.68872.3826
H41.09401.75281.76873.57153.22804.39064.20472.82723.76672.59912.15173.20704.12863.4934
C53.19352.92734.17413.57151.09041.09081.09091.53532.15602.15272.55633.54493.77464.4594
H62.93832.37453.93433.22801.09041.75861.76342.18983.07552.51372.85344.01934.48544.7837
H74.17733.92585.19824.39061.09081.75861.76502.17342.47532.48803.49124.43054.48935.4135
H83.56873.22334.38364.20471.09091.76341.76502.17712.52263.06682.82023.49953.62514.3443
C92.56692.86633.50012.82721.53532.18982.17342.17711.09121.09561.51012.48082.71203.4799
H103.47513.87134.27773.76672.15603.07552.47532.52261.09121.75342.13242.56982.34213.6504
H112.78323.16473.77302.59912.15272.51372.48803.06681.09561.75342.13403.20253.49874.1211
C121.50482.16022.15712.15172.55632.85343.49122.82021.51012.13242.13401.33082.10982.1111
C132.47823.19822.60713.20703.54494.01934.43053.49952.48082.56983.20251.33081.08271.0827
H143.47574.12893.68874.12863.77464.48544.48933.62512.71202.34213.49872.10981.08271.8439
H152.71463.46632.38263.49344.45944.78375.41354.34433.47993.65044.12112.11111.08271.8439

picture of 1-Butene, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C12 C9 116.726 C1 C12 C13 121.724
H2 C1 H3 107.953 H2 C1 H4 106.576
H2 C1 C12 111.560 H3 C1 H4 108.238
H3 C1 C12 111.525 H4 C1 C12 110.786
C5 C9 H10 109.171 C5 C9 H11 108.661
C5 C9 C12 114.151 H6 C5 H7 107.467
H6 C5 H8 107.883 H6 C5 C9 111.907
H7 C5 H8 107.997 H7 C5 C9 110.569
H8 C5 C9 110.857 C9 C12 C13 121.549
H10 C9 H11 106.604 H10 C9 C12 109.058
H11 C9 C12 108.927 C12 C13 H14 121.548
C12 C13 H15 121.688 H14 C13 H15 116.763
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.288     -0.295
2 H 0.095     0.088
3 H 0.095     0.090
4 H 0.093     0.083
5 C -0.295     -0.075
6 H 0.092     0.018
7 H 0.097     0.015
8 H 0.097     0.024
9 C -0.149     0.049
10 H 0.086     0.007
11 H 0.085     0.005
12 C 0.114     0.208
13 C -0.325     -0.621
14 H 0.101     0.194
15 H 0.102     0.209


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.362 0.379 0.135 0.541
CHELPG        
AIM        
ESP -0.335 0.391 0.131 0.531


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.520 0.615 -0.813
y 0.615 -32.958 0.148
z -0.813 0.148 -34.840
Traceless
 xyz
x 0.378 0.615 -0.813
y 0.615 1.222 0.148
z -0.813 0.148 -1.600
Polar
3z2-r2-3.201
x2-y2-0.562
xy0.615
xz-0.813
yz0.148


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.303 -0.833 -0.550
y -0.833 9.779 0.303
z -0.550 0.303 7.319


<r2> (average value of r2) Å2
<r2> 143.731
(<r2>)1/2 11.989