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All results from a given calculation for CH3CHCHCH3 (2-Butene, (E)-)

using model chemistry: MP2=FULL/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2h 1Ag
Energy calculated at MP2=FULL/cc-pVDZ
 hartrees
Energy at 0K-156.695535
Energy at 298.15K-156.703264
HF Energy-156.122462
Nuclear repulsion energy115.169634
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/cc-pVDZ
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 3191 3033 0.00      
2 A 3178 3020 0.00      
3 A 3078 2925 0.00      
4 A 1749 1663 0.00      
5 A 1489 1415 0.00      
6 A 1412 1342 0.00      
7 A 1321 1255 0.00      
8 A 1176 1118 0.00      
9 A 887 843 0.00      
10 A 501 476 0.00      
11 A 3161 3005 36.62      
12 A 1479 1406 12.04      
13 A 1068 1015 0.78      
14 A 1003 953 28.25      
15 A 247 235 3.06      
16 A 177 168 1.19      
17 A 3162 3005 0.00      
18 A 1479 1406 0.00      
19 A 1055 1003 0.00      
20 A 743 706 0.00      
21 A 227 216 0.00      
22 A 3195 3037 64.07      
23 A 3178 3020 8.19      
24 A 3078 2925 58.64      
25 A 1496 1422 16.42      
26 A 1412 1342 2.46      
27 A 1317 1252 4.74      
28 A 1113 1058 2.65      
29 A 983 934 11.46      
30 A 280 266 0.89      

Unscaled Zero Point Vibrational Energy (zpe) 23916.9 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 22730.6 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/cc-pVDZ
ABC
1.13797 0.12335 0.11614

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.674 0.000
C2 0.000 -0.674 0.000
C3 -1.237 1.529 0.000
C4 1.237 -1.529 0.000
H5 0.967 1.197 0.000
H6 -0.967 -1.197 0.000
H7 -2.147 0.910 0.000
H8 2.147 -0.910 0.000
H9 -1.267 2.185 0.886
H10 -1.267 2.185 -0.886
H11 1.267 -2.185 0.886
H12 1.267 -2.185 -0.886

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.34821.50322.52621.09902.10602.16002.66802.16202.16203.25063.2506
C21.34822.52621.50322.10601.09902.66802.16003.25063.25062.16202.1620
C31.50322.52623.93262.22802.73911.10124.17071.10331.10334.56594.5659
C42.52621.50323.93262.73912.22804.17071.10124.56594.56591.10331.1033
H51.09902.10602.22802.73913.07723.12702.41482.59842.59843.50923.5092
H62.10601.09902.73912.22803.07722.41483.12703.50923.50922.59842.5984
H72.16002.66801.10124.17073.12702.41484.66371.78521.78524.69254.6925
H82.66802.16004.17071.10122.41483.12704.66374.69254.69251.78521.7852
H92.16203.25061.10334.56592.59843.50921.78524.69251.77265.05195.3538
H102.16203.25061.10334.56592.59843.50921.78524.69251.77265.35385.0519
H113.25062.16204.56591.10333.50922.59844.69251.78525.05195.35381.7726
H123.25062.16204.56591.10333.50922.59844.69251.78525.35385.05191.7726

picture of 2-Butene, (E)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 124.653 C1 C2 H6 118.410
C1 C3 H7 111.130 C1 C3 H9 111.165
C1 C3 H10 111.165 C2 C1 C3 124.653
C2 C1 H5 118.410 C2 C4 H8 111.130
C2 C4 H11 111.165 C2 C4 H12 111.165
C3 C1 H5 116.937 C4 C2 H6 116.937
H7 C3 H9 108.157 H7 C3 H10 108.157
H8 C4 H11 108.157 H8 C4 H12 108.157
H9 C3 H10 106.898 H11 C4 H12 106.898
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability