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All results from a given calculation for CH2CHCH2CH3 (1-Butene)

using model chemistry: MP2=FULL/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2=FULL/STO-3G
 hartrees
Energy at 0K-154.467144
Energy at 298.15K-154.474924
HF Energy-154.235437
Nuclear repulsion energy115.300555
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 MP2=FULL/STO-3G
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 3613 3211 0.57      
2 A 3556 3161 3.72      
3 A 3554 3159 3.29      
4 A 3512 3122 2.88      
5 A 3503 3113 2.52      
6 A 3457 3073 5.66      
7 A 3396 3019 4.41      
8 A 3374 2999 3.13      
9 A 1828 1625 0.15      
10 A 1742 1548 0.62      
11 A 1735 1542 1.31      
12 A 1708 1518 0.64      
13 A 1620 1440 0.75      
14 A 1614 1435 0.22      
15 A 1513 1345 11.53      
16 A 1436 1276 0.79      
17 A 1428 1269 3.54      
18 A 1316 1170 0.07      
19 A 1217 1082 1.56      
20 A 1151 1023 1.30      
21 A 1133 1007 2.52      
22 A 1081 961 1.36      
23 A 996 885 12.07      
24 A 942 837 0.37      
25 A 875 778 2.28      
26 A 686 610 2.88      
27 A 440 391 0.29      
28 A 332 295 0.26      
29 A 227 202 0.01      
30 A 94 84 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 26537.0 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 23588.7 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 MP2=FULL/STO-3G
ABC
0.72243 0.13424 0.13137

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.747 -0.254 -0.306
C2 0.551 0.532 0.323
C3 -0.740 -0.308 0.354
C4 -1.877 0.024 -0.291
H5 -0.699 -1.239 0.942
H6 1.526 -0.534 -1.350
H7 2.662 0.364 -0.299
H8 1.949 -1.177 0.264
H9 0.822 0.829 1.355
H10 0.373 1.459 -0.254
H11 -1.953 0.942 -0.889
H12 -2.773 -0.609 -0.244

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.56302.57433.63462.91771.10331.10361.10342.18842.19673.93224.5346
C21.56301.54092.55552.25462.20972.20632.20871.10831.10642.81193.5601
C32.57431.54091.34791.10232.84413.52872.82822.17662.17512.13922.1400
C43.63462.55551.34792.12183.60654.55104.04823.26272.66901.09851.0981
H52.91772.25461.10232.12183.27123.92492.73472.60053.14013.11152.4709
H61.10332.20972.84413.60653.27121.78901.78823.10982.54963.80684.4392
H71.10362.20633.52874.55103.92491.78901.78872.51732.53734.68785.5213
H81.10342.20872.82824.04822.73471.78821.78872.54703.11484.58784.7834
H92.18841.10832.17663.26272.60053.10982.51732.54701.78573.57074.1897
H102.19671.10642.17512.66903.14012.54962.53733.11481.78572.46583.7650
H113.93222.81192.13921.09853.11153.80684.68784.58783.57072.46581.8694
H124.53463.56012.14001.09812.47094.43925.52134.78344.18973.76501.8694

picture of 1-Butene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 112.064 C1 C2 H9 108.819
C1 C2 H10 109.567 C2 C1 H6 110.752
C2 C1 H7 110.477 C2 C1 H8 110.673
C2 C3 C4 124.268 C2 C3 H5 116.080
C3 C2 H9 109.409 C3 C2 H10 109.397
C3 C4 H11 121.622 C3 C4 H12 121.731
C4 C3 H5 119.649 H6 C1 H7 108.316
H6 C1 H8 108.253 H7 C1 H8 108.284
H9 C2 H10 107.473 H11 C4 H12 116.647
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability