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All results from a given calculation for C4H5N ((E)-2-Butenenitrile)

using model chemistry: MP2=FULL/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/6-31G**
 hartrees
Energy at 0K-209.534202
Energy at 298.15K-209.538628
HF Energy-208.812692
Nuclear repulsion energy138.030585
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/6-31G**
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' 3270 3055 4.82      
2 A' 3255 3042 8.70      
3 A' 3234 3022 7.61      
4 A' 3127 2922 11.95      
5 A' 2212 2067 0.18      
6 A' 1740 1625 5.00      
7 A' 1549 1447 11.08      
8 A' 1468 1371 1.37      
9 A' 1362 1273 0.15      
10 A' 1345 1257 0.77      
11 A' 1169 1092 0.06      
12 A' 1062 992 4.22      
13 A' 936 875 5.91      
14 A' 556 520 0.05      
15 A' 396 370 1.22      
16 A' 176 164 4.37      
17 A" 3211 3000 10.29      
18 A" 1536 1435 6.90      
19 A" 1096 1024 0.56      
20 A" 1008 942 36.61      
21 A" 794 742 0.85      
22 A" 476 444 4.73      
23 A" 197 184 1.54      
24 A" 174 162 0.84      

Unscaled Zero Point Vibrational Energy (zpe) 17672.4 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 16513.1 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/6-31G**
ABC
1.27169 0.07621 0.07286

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.634 0.465 0.000
H2 2.654 -1.069 0.876
H3 2.654 -1.069 -0.876
C4 2.259 -0.556 0.000
H5 0.286 -1.557 0.000
C6 0.768 -0.586 0.000
H7 0.441 1.503 0.000
C8 0.000 0.515 0.000
N9 -2.609 0.402 0.000
C10 -1.428 0.446 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 H5 C6 H7 C8 N9 C10
H11.76661.76661.08743.09822.14132.42642.63415.24324.0617
H21.76661.75291.08942.57142.13463.50453.21235.53454.4412
H31.76661.75291.08942.57142.13463.50453.21235.53454.4412
C41.08741.08941.08942.21251.49152.74732.50034.96193.8211
H53.09822.57142.57142.21251.08373.06402.09153.49592.6365
C62.14132.13462.13461.49151.08372.11501.34263.51902.4268
H72.42643.50453.50452.74733.06402.11501.08203.24252.1469
C82.63413.21233.21232.50032.09151.34261.08202.61161.4297
N95.24325.53455.53454.96193.49593.51903.24252.61161.1820
C104.06174.44124.44123.82112.63652.42682.14691.42971.1820

picture of (E)-2-Butenenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C4 H2 108.504 H1 C4 H3 108.504
H1 C4 C6 111.299 H2 C4 H3 107.132
H2 C4 C6 110.636 H3 C4 C6 110.636
C4 C6 H5 117.570 C4 C6 C8 123.733
H5 C6 C8 118.697 C6 C8 H7 121.073
C6 C8 C10 122.143 H7 C8 C10 116.784
C8 C10 N9 179.385
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability