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

using model chemistry: MP2/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31G
 hartrees
Energy at 0K-209.194507
Energy at 298.15K-209.198898
HF Energy-208.710619
Nuclear repulsion energy139.426401
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 MP2/6-31G
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 3216 3077 10.15      
2 A 3183 3045 11.91      
3 A 3150 3014 7.23      
4 A 3057 2925 12.48      
5 A 2095 2005 3.11      
6 A 1687 1614 0.20      
7 A 1562 1494 10.20      
8 A 1492 1428 8.13      
9 A 1457 1394 0.81      
10 A 1311 1254 0.36      
11 A 1160 1109 1.38      
12 A 983 940 10.33      
13 A 894 855 1.22      
14 A 666 638 0.77      
15 A 378 361 0.03      
16 A 152 145 3.85      
17 A 3129 2994 16.60      
18 A 1554 1486 9.17      
19 A 1122 1074 0.60      
20 A 982 940 0.32      
21 A 762 729 42.10      
22 A 473 452 3.13      
23 A 240 229 2.09      
24 A 131 126 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 17417.0 cm-1
Scaled (by 0.9568) Zero Point Vibrational Energy (zpe) 16664.6 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 MP2/6-31G
ABC
0.39073 0.11139 0.08812

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.236 0.251 0.000
N2 -2.265 -0.373 0.000
C3 0.000 1.004 0.000
H4 -0.101 2.089 0.000
C5 1.231 0.428 0.000
H6 2.098 1.091 0.000
C7 1.516 -1.058 0.000
H8 0.587 -1.642 0.000
H9 2.103 -1.341 0.887
H10 2.103 -1.341 -0.887

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 C7 H8 H9 H10
C11.20371.44712.16002.47263.43783.04762.62823.80343.8034
N21.20372.65083.27783.58604.60203.84283.12154.56074.5607
C31.44712.65081.08981.35902.09962.55992.71113.27213.2721
H42.16003.27781.08982.12972.41513.53893.79494.17254.1725
C52.47263.58601.35902.12971.09211.51302.16812.16182.1618
H63.43784.60202.09962.41511.09212.22683.12382.58852.5885
C73.04763.84282.55993.53891.51302.22681.09811.09991.0999
H82.62823.12152.71113.79492.16813.12381.09811.78211.7821
H93.80344.56073.27214.17252.16182.58851.09991.78211.7731
H103.80344.56073.27214.17252.16182.58851.09991.78211.7731

picture of (Z)-2-Butenenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 116.020 C1 C3 C5 123.533
N2 C1 C3 179.873 C3 C5 H6 117.467
C3 C5 C7 125.992 H4 C3 C5 120.448
C5 C7 H8 111.270 C5 C7 H9 110.663
C5 C7 H10 110.663 H6 C5 C7 116.541
H8 C7 H9 108.350 H8 C7 H10 108.350
H9 C7 H10 107.420
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability