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

using model chemistry: CCSD(T)/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at CCSD(T)/6-31G*
 hartrees
Energy at 0K-156.689516
Energy at 298.15K-156.697462
HF Energy-156.104195
Nuclear repulsion energy116.625124
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 CCSD(T)/6-31G*
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 3236 3113        
2 A 3154 3035        
3 A 3135 3016        
4 A 3130 3012        
5 A 3123 3004        
6 A 3075 2959        
7 A 3049 2933        
8 A 3031 2916        
9 A 1716 1651        
10 A 1549 1490        
11 A 1542 1483        
12 A 1530 1472        
13 A 1483 1427        
14 A 1454 1398        
15 A 1377 1325        
16 A 1335 1285        
17 A 1315 1265        
18 A 1224 1178        
19 A 1116 1074        
20 A 1058 1018        
21 A 1010 972        
22 A 1003 965        
23 A 906 872        
24 A 876 843        
25 A 806 775        
26 A 645 620        
27 A 434 418        
28 A 321 308        
29 A 239 230        
30 A 106 102        

Unscaled Zero Point Vibrational Energy (zpe) 23988.9 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 23079.8 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 CCSD(T)/6-31G*
ABC
0.74670 0.13757 0.13442

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.724 -0.245 -0.299
C2 0.543 0.521 0.314
C3 -0.717 -0.304 0.343
C4 -1.862 0.022 -0.280
H5 -0.664 -1.240 0.908
H6 1.507 -0.523 -1.339
H7 2.639 0.364 -0.290
H8 1.927 -1.168 0.261
H9 0.803 0.827 1.341
H10 0.361 1.446 -0.254
H11 -1.956 0.944 -0.856
H12 -2.744 -0.616 -0.234

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.53582.52553.59682.85601.09801.09841.09902.16492.17323.90794.4846
C21.53581.50702.52762.21712.18012.18652.18441.10241.10062.79203.5215
C32.52551.50701.34371.09512.79723.47992.78272.14172.14052.12852.1304
C43.59682.52761.34372.10753.57394.51424.00833.22182.64021.09121.0895
H52.85602.21711.09512.10753.20653.86262.67162.57163.10163.09102.4538
H61.09802.18012.79723.57393.20651.78001.77563.08202.52423.79234.3936
H71.09842.18653.47994.51423.86261.78001.77702.49842.52284.66625.4718
H81.09902.18442.78274.00832.67161.77561.77702.53133.09104.55934.7293
H92.16491.10242.14173.22182.57163.08202.49842.53131.76723.52924.1408
H102.17321.10062.14052.64023.10162.52422.52283.09101.76722.44603.7274
H113.90792.79202.12851.09123.09103.79234.66624.55933.52922.44601.8551
H124.48463.52152.13041.08952.45384.39365.47184.72934.14083.72741.8551

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 112.189 C1 C2 H9 109.186
C1 C2 H10 109.936 C2 C1 H6 110.630
C2 C1 H7 111.125 C2 C1 H8 110.918
C2 C3 C4 124.814 C2 C3 H5 115.964
C3 C2 H9 109.341 C3 C2 H10 109.355
C3 C4 H11 121.545 C3 C4 H12 121.873
C4 C3 H5 119.217 H6 C1 H7 108.274
H6 C1 H8 107.833 H7 C1 H8 107.936
H9 C2 H10 106.677 H11 C4 H12 116.582
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability