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

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-311G**
 hartrees
Energy at 0K-209.579948
Energy at 298.15K-209.584358
HF Energy-208.853903
Nuclear repulsion energy137.833663
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 MP2/6-311G**
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' 3215 3055 4.85      
2 A' 3198 3038 7.82      
3 A' 3173 3015 8.38      
4 A' 3072 2919 12.12      
5 A' 2190 2081 0.48      
6 A' 1704 1619 5.61      
7 A' 1509 1434 13.75      
8 A' 1428 1357 2.02      
9 A' 1332 1266 0.14      
10 A' 1313 1248 0.76      
11 A' 1147 1090 0.00      
12 A' 1045 993 5.22      
13 A' 917 872 6.04      
14 A' 553 526 0.02      
15 A' 393 373 1.23      
16 A' 174 166 3.87      
17 A" 3149 2992 9.81      
18 A" 1494 1420 8.63      
19 A" 1072 1018 0.97      
20 A" 990 941 43.32      
21 A" 788 748 0.73      
22 A" 474 450 3.69      
23 A" 197 187 1.42      
24 A" 172 163 0.46      

Unscaled Zero Point Vibrational Energy (zpe) 17348.5 cm-1
Scaled (by 0.9502) Zero Point Vibrational Energy (zpe) 16484.5 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 MP2/6-311G**
ABC
1.26378 0.07603 0.07268

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.642 0.458 0.000
H2 2.653 -1.085 0.881
H3 2.653 -1.085 -0.881
C4 2.262 -0.567 0.000
H5 0.275 -1.563 0.000
C6 0.765 -0.591 0.000
H7 0.447 1.506 0.000
C8 0.000 0.516 0.000
N9 -2.607 0.414 0.000
C10 -1.431 0.454 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 H5 C6 H7 C8 N9 C10
H11.77701.77701.09283.11262.15012.43302.64315.24944.0733
H21.77701.76271.09492.58052.14113.51563.22155.53984.4525
H31.77701.76271.09492.58052.14113.51563.22155.53984.4525
C41.09281.09491.09492.22271.49672.75522.50754.96643.8313
H53.11262.58052.58052.22271.08893.07442.09713.49492.6421
C62.15012.14112.14111.49671.08892.12131.34553.51862.4322
H72.43303.51563.51562.75523.07442.12131.08683.24332.1525
C82.64313.22153.22152.50752.09711.34551.08682.60881.4322
N95.24945.53985.53984.96643.49493.51863.24332.60881.1766
C104.07334.45254.45253.83132.64212.43222.15251.43221.1766

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 108.645 H1 C4 H3 108.645
H1 C4 C6 111.308 H2 C4 H3 107.219
H2 C4 C6 110.453 H3 C4 C6 110.453
C4 C6 H5 117.684 C4 C6 C8 123.738
H5 C6 C8 118.578 C6 C8 H7 121.046
C6 C8 C10 122.205 H7 C8 C10 116.748
C8 C10 N9 179.505
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability