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

using model chemistry: MP2=FULL/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2=FULL/6-311G*
 hartrees
Energy at 0K-156.755213
Energy at 298.15K-156.762820
HF Energy-156.135096
Nuclear repulsion energy117.377896
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/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3203 3034 57.45      
2 A 3189 3020 2.49      
3 A 3079 2916 12.27      
4 A 1739 1647 3.30      
5 A 1538 1457 9.04      
6 A 1456 1379 8.90      
7 A 1314 1244 0.18      
8 A 1047 991 0.54      
9 A 888 841 0.67      
10 A 297 282 0.01      
11 A 3144 2977 0.00      
12 A 1522 1441 0.00      
13 A 1071 1014 0.00      
14 A 975 923 0.00      
15 A 377 357 0.00      
16 A 101 96 0.00      
17 A 3144 2978 38.47      
18 A 1528 1447 16.98      
19 A 1083 1026 2.80      
20 A 695 658 48.30      
21 A 104 98 0.69      
22 A 3187 3018 20.83      
23 A 3167 3000 0.08      
24 A 3076 2913 32.41      
25 A 1530 1449 7.50      
26 A 1466 1388 8.14      
27 A 1419 1344 1.20      
28 A 1172 1110 0.70      
29 A 1008 955 12.04      
30 A 568 538 6.41      

Unscaled Zero Point Vibrational Energy (zpe) 24041.9 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 22770.1 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 MP2=FULL/6-311G*
ABC
0.54328 0.16921 0.13548

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.671 0.665
C2 0.000 -0.671 0.665
C3 0.000 1.588 -0.523
C4 0.000 -1.588 -0.523
H5 0.000 1.167 1.635
H6 0.000 -1.167 1.635
H7 0.000 1.051 -1.472
H8 0.000 -1.051 -1.472
H9 -0.879 2.240 -0.506
H10 0.879 2.240 -0.506
H11 0.879 -2.240 -0.506
H12 -0.879 -2.240 -0.506

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.34281.50052.55261.08932.07872.16992.74432.14552.14553.25863.2586
C21.34282.55261.50052.07871.08932.74432.16993.25863.25862.14552.1455
C31.50052.55263.17552.19883.49951.08962.80401.09421.09423.92703.9270
C42.55261.50053.17553.49952.19882.80401.08963.92703.92701.09421.0942
H51.08932.07872.19883.49952.33413.10873.81712.55092.55094.11864.1186
H62.07871.08933.49952.19882.33413.81713.10874.11864.11862.55092.5509
H72.16992.74431.08962.80403.10873.81712.10201.76541.76543.54023.5402
H82.74432.16992.80401.08963.81713.10872.10203.54023.54021.76541.7654
H92.14553.25861.09423.92702.55094.11861.76543.54021.75714.81184.4795
H102.14553.25861.09423.92702.55094.11861.76543.54021.75714.47954.8118
H113.25862.14553.92701.09424.11862.55093.54021.76544.81184.47951.7571
H123.25862.14553.92701.09424.11862.55093.54021.76544.47954.81181.7571

picture of 2-Butene, (Z)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 127.639 C1 C2 H6 117.066
C1 C3 H7 112.851 C1 C3 H9 110.583
C1 C3 H10 110.583 C2 C1 C3 127.639
C2 C1 H5 117.066 C2 C4 H8 112.851
C2 C4 H11 110.583 C2 C4 H12 110.583
C3 C1 H5 115.295 C4 C2 H6 115.295
H7 C3 H9 107.881 H7 C3 H10 107.881
H8 C4 H11 107.881 H8 C4 H12 107.881
H9 C3 H10 106.822 H11 C4 H12 106.822
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability