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

using model chemistry: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-35.420949
Energy at 298.15K-35.425478
Nuclear repulsion energy72.978073
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/CEP-121G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3169 3088 13.96      
2 A 3130 3050 18.82      
3 A 3103 3024 5.04      
4 A 2987 2911 18.77      
5 A 2210 2153 21.81      
6 A 1658 1616 12.66      
7 A 1504 1466 21.31      
8 A 1443 1406 11.43      
9 A 1407 1371 1.08      
10 A 1268 1236 1.01      
11 A 1130 1101 0.71      
12 A 964 940 15.77      
13 A 884 861 1.32      
14 A 661 644 0.45      
15 A 387 377 0.25      
16 A 157 153 3.63      
17 A 3053 2975 24.31      
18 A 1505 1467 13.37      
19 A 1084 1056 0.37      
20 A 1001 975 1.31      
21 A 767 747 44.74      
22 A 524 511 6.13      
23 A 283 276 1.63      
24 A 138 134 0.19      

Unscaled Zero Point Vibrational Energy (zpe) 17207.9 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 16769.1 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/CEP-121G
ABC
0.39380 0.11115 0.08811

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.280 0.347 0.000
N2 -2.337 -0.192 0.000
C3 0.000 1.023 0.000
H4 -0.040 2.110 0.000
C5 1.195 0.368 0.000
H6 2.097 0.983 0.000
C7 1.395 -1.132 0.000
H8 0.443 -1.673 0.000
H9 1.973 -1.442 0.883
H10 1.973 -1.442 -0.883

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 C7 H8 H9 H10
C11.18691.44752.15552.47563.43673.05662.65503.81603.8160
N21.18692.63433.25273.57694.58773.84833.14964.57354.5735
C31.44752.63431.08771.36302.09772.56712.73193.27833.2783
H42.15553.25271.08772.13512.41583.54533.81354.17674.1767
C52.47563.57691.36302.13511.09151.51372.17552.15882.1588
H63.43674.58772.09772.41581.09152.22913.12922.58382.5838
C73.05663.84832.56713.54531.51372.22911.09461.09981.0998
H82.65503.14962.73193.81352.17553.12921.09461.78141.7814
H93.81604.57353.27834.17672.15882.58381.09981.78141.7655
H103.81604.57353.27834.17672.15882.58381.09981.78141.7655

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 115.744 C1 C3 C5 123.465
N2 C1 C3 179.215 C3 C5 H6 117.010
C3 C5 C7 126.267 H4 C3 C5 120.791
C5 C7 H8 112.035 C5 C7 H9 110.385
C5 C7 H10 110.385 H6 C5 C7 116.723
H8 C7 H9 108.548 H8 C7 H10 108.548
H9 C7 H10 106.771
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.511      
2 N 0.242      
3 C -0.024      
4 H 0.192      
5 C -0.011      
6 H 0.151      
7 C -0.572      
8 H 0.187      
9 H 0.172      
10 H 0.172      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.287 0.951 0.000 4.391
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.735 -2.160 0.000
y -2.160 -27.153 0.000
z 0.000 0.000 -31.280
Traceless
 xyz
x -7.518 -2.160 0.000
y -2.160 6.854 0.000
z 0.000 0.000 0.664
Polar
3z2-r21.329
x2-y2-9.582
xy-2.160
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.930 -0.306 0.000
y -0.306 6.762 0.000
z 0.000 0.000 4.303


<r2> (average value of r2) Å2
<r2> 104.014
(<r2>)1/2 10.199