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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-209.510763
Energy at 298.15K-209.515268
HF Energy-208.812046
Nuclear repulsion energy141.335354
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 3287 3078 4.09      
2 A 3255 3048 9.28      
3 A 3238 3032 2.31      
4 A 3126 2928 8.84      
5 A 2199 2059 0.78      
6 A 1723 1614 1.99      
7 A 1542 1444 9.52      
8 A 1475 1381 4.28      
9 A 1433 1342 1.84      
10 A 1287 1205 0.08      
11 A 1150 1077 0.51      
12 A 989 926 10.70      
13 A 926 867 1.41      
14 A 662 620 1.74      
15 A 392 367 0.11      
16 A 157 147 4.54      
17 A 3208 3004 10.10      
18 A 1538 1441 6.98      
19 A 1094 1025 0.86      
20 A 983 921 0.21      
21 A 750 703 36.64      
22 A 503 471 0.99      
23 A 273 256 3.12      
24 A 149 140 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 17669.5 cm-1
Scaled (by 0.9365) Zero Point Vibrational Energy (zpe) 16547.5 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 MP2/6-31G**
ABC
0.39460 0.11607 0.09119

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 -1.213 0.242 0.000
N2 -2.218 -0.383 0.000
C3 0.000 1.005 0.000
H4 -0.105 2.081 0.000
C5 1.215 0.426 0.000
H6 2.077 1.084 0.000
C7 1.478 -1.044 0.000
H8 0.552 -1.615 0.000
H9 2.061 -1.324 0.878
H10 2.061 -1.324 -0.878

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 C7 H8 H9 H10
C11.18361.43272.14672.43463.39562.98232.56243.73413.7341
N21.18362.61633.24583.52674.53823.75443.03194.46844.4684
C31.43272.61631.08141.34562.07842.52622.67773.23173.2317
H42.14673.24581.08142.11702.39943.50323.75454.13064.1306
C52.43463.52671.34562.11701.08421.49342.14622.13332.1333
H63.39564.53822.07842.39941.08422.21013.09972.56302.5630
C72.98233.75442.52623.50321.49342.21011.08781.09051.0905
H82.56243.03192.67773.75452.14623.09971.08781.76961.7696
H93.73414.46843.23174.13062.13332.56301.09051.76961.7553
H103.73414.46843.23174.13062.13332.56301.09051.76961.7553

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 116.576 C1 C3 C5 122.364
N2 C1 C3 179.721 C3 C5 H6 117.197
C3 C5 C7 125.622 H4 C3 C5 121.060
C5 C7 H8 111.541 C5 C7 H9 110.333
C5 C7 H10 110.333 H6 C5 C7 117.181
H8 C7 H9 108.662 H8 C7 H10 108.662
H9 C7 H10 107.184
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability