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: HSEh1PBE/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HSEh1PBE/6-31+G**
 hartrees
Energy at 0K-196.321170
Energy at 298.15K-196.331294
HF Energy-196.321170
Nuclear repulsion energy175.842109
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 HSEh1PBE/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 A 3254 3106 18.49      
2 A 3166 3023 9.38      
3 A 3153 3010 20.42      
4 A 3146 3004 36.39      
5 A 3143 3001 32.64      
6 A 3110 2969 18.26      
7 A 3099 2959 13.98      
8 A 3061 2923 31.55      
9 A 3047 2910 28.04      
10 A 3037 2900 28.68      
11 A 1735 1657 24.06      
12 A 1510 1442 3.15      
13 A 1503 1435 9.25      
14 A 1497 1429 15.37      
15 A 1487 1420 15.00      
16 A 1474 1408 3.95      
17 A 1448 1383 0.39      
18 A 1413 1349 8.08      
19 A 1409 1346 5.54      
20 A 1357 1296 1.02      
21 A 1314 1255 1.49      
22 A 1274 1216 0.98      
23 A 1117 1066 0.87      
24 A 1098 1049 5.40      
25 A 1053 1006 0.35      
26 A 1033 986 1.20      
27 A 999 954 0.98      
28 A 954 911 1.51      
29 A 924 882 56.04      
30 A 803 767 1.89      
31 A 786 750 1.36      
32 A 724 691 0.25      
33 A 537 512 9.28      
34 A 433 414 1.55      
35 A 400 382 0.95      
36 A 267 255 0.22      
37 A 221 211 0.78      
38 A 180 172 0.37      
39 A 67 64 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 30116.4 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 28755.1 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 HSEh1PBE/6-31+G**
ABC
0.24275 0.12518 0.09485

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.956 1.340 0.032
H2 0.335 1.881 -0.691
H3 2.002 1.477 -0.255
H4 0.801 1.824 1.005
C5 -1.907 0.075 -0.387
H6 -1.897 1.167 -0.467
H7 -2.897 -0.217 -0.024
H8 -1.781 -0.336 -1.394
C9 -0.813 -0.438 0.552
H10 -0.911 -1.524 0.666
H11 -0.970 -0.003 1.550
C12 0.586 -0.115 0.095
C13 1.455 -1.078 -0.233
H14 1.183 -2.129 -0.182
H15 2.466 -0.846 -0.562

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 H8 C9 H10 H11 C12 C13 H14 H15
C11.09641.09311.09753.15812.90184.15673.51242.56203.47722.79641.50232.48263.48262.7216
H21.09641.77031.75982.89462.35403.91083.14442.87113.87133.20572.15963.19664.13003.4630
H31.09311.77031.77494.15483.91725.18914.34713.49924.28233.77932.15852.61213.69792.3879
H41.09751.75981.77493.51123.14274.34764.13372.81573.77552.60252.15253.22174.14463.5144
C53.15812.89464.15483.51121.09461.09461.09501.53062.15802.15332.54663.55793.80134.4719
H62.90182.35403.91723.14271.09461.76431.76992.18873.08132.50922.85054.04124.52014.8054
H74.15673.91085.18914.34761.09461.76431.77122.17362.47532.49743.48724.44194.50895.4263
H83.51243.14444.34714.13371.09501.76991.77122.17612.53173.07192.80543.51753.67024.3575
C92.56202.87113.49922.81571.53062.18872.17362.17611.09581.09991.50762.48442.71703.4866
H103.47723.87134.28233.77552.15803.08132.47532.53171.09581.76012.13422.57082.33913.6563
H112.79643.20573.77932.60252.15332.50922.49743.07191.09991.76012.13413.19663.48644.1198
C121.50232.15962.15852.15252.54662.85053.48722.80541.50762.13422.13411.33782.11862.1203
C132.48263.19662.61213.22173.55794.04124.44193.51752.48442.57083.19661.33781.08711.0870
H143.48264.13003.69794.14463.80134.52014.50893.67022.71702.33913.48642.11861.08711.8532
H152.72163.46302.38793.51444.47194.80545.42634.35753.48663.65634.11982.12031.08701.8532

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 116.682 C1 C12 C13 121.782
H2 C1 H3 107.905 H2 C1 H4 106.665
H2 C1 C12 111.450 H3 C1 H4 108.238
H3 C1 C12 111.570 H4 C1 C12 110.813
C5 C9 H10 109.388 C5 C9 H11 108.782
C5 C9 C12 113.897 H6 C5 H7 107.390
H6 C5 H8 107.862 H6 C5 C9 111.893
H7 C5 H8 107.983 H7 C5 C9 110.682
H8 C5 C9 110.864 C9 C12 C13 121.535
H10 C9 H11 106.570 H10 C9 C12 109.098
H11 C9 C12 108.847 C12 C13 H14 121.442
C12 C13 H15 121.615 H14 C13 H15 116.943
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.741      
2 H 0.172      
3 H 0.168      
4 H 0.173      
5 C -0.605      
6 H 0.161      
7 H 0.167      
8 H 0.174      
9 C -0.227      
10 H 0.158      
11 H 0.165      
12 C 0.419      
13 C -0.471      
14 H 0.143      
15 H 0.144      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.419 0.403 0.137 0.597
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.264 0.687 -0.902
y 0.687 -32.661 0.158
z -0.902 0.158 -34.981
Traceless
 xyz
x 0.557 0.687 -0.902
y 0.687 1.461 0.158
z -0.902 0.158 -2.018
Polar
3z2-r2-4.036
x2-y2-0.603
xy0.687
xz-0.902
yz0.158


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.127 -0.993 -0.476
y -0.993 9.546 0.330
z -0.476 0.330 7.424


<r2> (average value of r2) Å2
<r2> 143.399
(<r2>)1/2 11.975