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

using model chemistry: MP2/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-209.715521
Energy at 298.15K-209.719928
HF Energy-208.884831
Nuclear repulsion energy138.376431
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/Def2TZVPP
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' 3221 3065 3.60      
2 A' 3204 3049 4.62      
3 A' 3176 3022 6.77      
4 A' 3075 2926 9.36      
5 A' 2191 2085 0.04      
6 A' 1703 1620 7.11      
7 A' 1501 1428 14.59      
8 A' 1419 1351 2.06      
9 A' 1336 1271 0.28      
10 A' 1314 1250 1.25      
11 A' 1145 1089 0.03      
12 A' 1045 994 5.58      
13 A' 914 870 6.89      
14 A' 550 523 0.04      
15 A' 390 371 1.26      
16 A' 172 164 4.32      
17 A" 3149 2996 5.59      
18 A" 1492 1420 8.11      
19 A" 1071 1019 1.51      
20 A" 998 950 40.40      
21 A" 801 762 0.52      
22 A" 474 451 3.65      
23 A" 201 192 1.43      
24 A" 173 164 0.69      

Unscaled Zero Point Vibrational Energy (zpe) 17357.4 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 16515.6 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/Def2TZVPP
ABC
1.27731 0.07659 0.07322

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.633 0.458 0.000
H2 2.644 -1.078 0.876
H3 2.644 -1.078 -0.876
C4 2.253 -0.561 0.000
H5 0.277 -1.556 0.000
C6 0.764 -0.588 0.000
H7 0.443 1.499 0.000
C8 0.000 0.512 0.000
N9 -2.598 0.413 0.000
C10 -1.426 0.447 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 H5 C6 H7 C8 N9 C10
H11.76901.76901.08783.10002.14212.42512.63375.23184.0588
H21.76901.75231.08992.56872.13113.50093.20745.52024.4333
H31.76901.75231.08992.56872.13113.50093.20745.52024.4333
C41.08781.08991.08992.21281.48952.74272.49584.94853.8145
H53.10002.56872.56872.21281.08363.05972.08663.48462.6286
C62.14212.13112.13111.48951.08362.11181.33953.50822.4219
H72.42513.50093.50092.74273.05972.11181.08173.22952.1443
C82.63373.20743.20742.49582.08661.33951.08172.60041.4271
N95.23185.52025.52024.94853.48463.50823.22952.60041.1734
C104.05884.43334.43333.81452.62862.42192.14431.42711.1734

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 108.648 H1 C4 H3 108.648
H1 C4 C6 111.479 H2 C4 H3 107.006
H2 C4 C6 110.464 H3 C4 C6 110.464
C4 C6 H5 117.761 C4 C6 C8 123.734
H5 C6 C8 118.505 C6 C8 H7 121.065
C6 C8 C10 122.155 H7 C8 C10 116.780
C8 C10 N9 179.058
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability