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

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at G4
 hartrees
Energy at 0K-210.030645
Energy at 298.15K-210.024075
HF Energy-210.168384
Nuclear repulsion energy138.464681
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 B3LYP/6-31G(2df,p)
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' 3172 3061 9.47      
2 A' 3164 3053 2.22      
3 A' 3119 3010 10.46      
4 A' 3027 2921 12.21      
5 A' 2340 2258 21.01      
6 A' 1705 1645 22.30      
7 A' 1483 1431 14.86      
8 A' 1409 1360 0.86      
9 A' 1334 1287 0.58      
10 A' 1311 1265 1.11      
11 A' 1132 1092 0.12      
12 A' 1042 1005 6.43      
13 A' 908 876 6.77      
14 A' 565 545 0.14      
15 A' 397 383 1.73      
16 A' 177 170 4.45      
17 A" 3077 2970 9.92      
18 A" 1474 1423 6.60      
19 A" 1072 1034 0.65      
20 A" 999 964 28.17      
21 A" 817 788 1.04      
22 A" 508 491 5.15      
23 A" 204 197 1.62      
24 A" 176 170 1.08      

Unscaled Zero Point Vibrational Energy (zpe) 17305.3 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 16699.6 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 B3LYP/6-31G(2df,p)
ABC
1.29687 0.07639 0.07311

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.662 0.398 0.000
H2 2.628 -1.146 0.878
H3 2.628 -1.146 -0.878
C4 2.246 -0.612 0.000
H5 0.255 -1.569 0.000
C6 0.752 -0.602 0.000
H7 0.457 1.491 0.000
C8 0.000 0.505 0.000
N9 -2.582 0.479 0.000
C10 -1.424 0.478 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 H5 C6 H7 C8 N9 C10
H11.77731.77731.09293.10852.15542.46092.66395.24464.0862
H21.77731.75651.09672.56552.14173.52753.22595.52814.4529
H31.77731.75651.09672.56552.14173.52753.22595.52814.4529
C41.09291.09671.09672.20861.49352.76132.50844.94963.8280
H53.10852.56552.56552.20861.08773.06682.08983.49892.6475
C62.15542.14172.14171.49351.08772.11361.33833.50512.4292
H72.46093.52753.52752.76133.06682.11361.08673.20332.1360
C82.66393.22593.22592.50842.08981.33831.08672.58241.4239
N95.24465.52815.52814.94963.49893.50513.20332.58241.1586
C104.08624.45294.45293.82802.64752.42922.13601.42391.1586

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 108.584 H1 C4 H3 108.584
H1 C4 C6 111.759 H2 C4 H3 106.740
H2 C4 C6 110.507 H3 C4 C6 110.507
C4 C6 H5 116.559 C4 C6 C8 124.587
H5 C6 C8 118.854 C6 C8 H7 121.649
C6 C8 C10 122.662 H7 C8 C10 115.690
C8 C10 N9 179.001
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.133      
2 H 0.146      
3 H 0.146      
4 C -0.433      
5 H 0.123      
6 C -0.001      
7 H 0.132      
8 C -0.180      
9 N -0.326      
10 C 0.260      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.553 -0.667 0.000 4.602
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 151.415
(<r2>)1/2 12.305