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

using model chemistry: QCISD(T)/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at QCISD(T)/cc-pVDZ
 hartrees
Energy at 0K-156.756599
Energy at 298.15K-156.764523
HF Energy-156.117116
Nuclear repulsion energy115.995778
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 QCISD(T)/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 3241 3089        
2 A 3148 3000        
3 A 3134 2987        
4 A 3128 2982        
5 A 3122 2975        
6 A 3080 2936        
7 A 3039 2896        
8 A 3030 2888        
9 A 1695 1616        
10 A 1495 1425        
11 A 1486 1416        
12 A 1471 1402        
13 A 1445 1377        
14 A 1403 1338        
15 A 1340 1277        
16 A 1300 1239        
17 A 1283 1223        
18 A 1194 1138        
19 A 1091 1040        
20 A 1046 997        
21 A 1001 954        
22 A 976 930        
23 A 904 861        
24 A 865 824        
25 A 787 750        
26 A 636 606        
27 A 427 407        
28 A 313 298        
29 A 239 228        
30 A 106 101        

Unscaled Zero Point Vibrational Energy (zpe) 23711.4 cm-1
Scaled (by 0.9531) Zero Point Vibrational Energy (zpe) 22599.3 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 QCISD(T)/cc-pVDZ
ABC
0.73884 0.13625 0.13316

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.732 -0.241 -0.304
C2 0.546 0.519 0.321
C3 -0.719 -0.311 0.340
C4 -1.873 0.028 -0.281
H5 -0.670 -1.262 0.897
H6 1.514 -0.509 -1.355
H7 2.653 0.371 -0.286
H8 1.935 -1.179 0.250
H9 0.809 0.807 1.360
H10 0.361 1.459 -0.236
H11 -1.961 0.966 -0.847
H12 -2.758 -0.620 -0.240

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.54062.53513.61442.87301.10671.10651.10762.17262.18473.92284.5065
C21.54061.51322.54042.23212.19172.19782.19441.11011.10822.80183.5398
C32.53511.51321.35311.10332.81063.49722.79392.15082.15192.14072.1425
C43.61442.54041.35312.12073.59304.53884.02913.23912.65331.09971.0978
H52.87302.23211.10332.12073.22633.88732.68562.58533.12263.11042.4631
H61.10672.19172.81063.59303.22631.79381.78903.09922.54093.80914.4167
H71.10652.19783.49724.53883.88731.79381.79012.51042.53774.68615.5018
H81.10762.19442.79394.02912.68561.78901.79012.53883.10954.58064.7518
H92.17261.11012.15083.23912.58533.09922.51042.53881.78123.54534.1619
H102.18471.10822.15192.65333.12262.54092.53773.10951.78122.45113.7485
H113.92282.80182.14071.09973.11043.80914.68614.58063.54532.45111.8761
H124.50653.53982.14251.09782.46314.41675.50184.75184.16193.74851.8761

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 112.222 C1 C2 H9 109.018
C1 C2 H10 110.056 C2 C1 H6 110.698
C2 C1 H7 111.189 C2 C1 H8 110.850
C2 C3 C4 124.739 C2 C3 H5 116.219
C3 C2 H9 109.183 C3 C2 H10 109.380
C3 C4 H11 121.218 C3 C4 H12 121.542
C4 C3 H5 119.038 H6 C1 H7 108.290
H6 C1 H8 107.789 H7 C1 H8 107.896
H9 C2 H10 106.830 H11 C4 H12 117.240
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability