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

using model chemistry: HF/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 HF/CEP-121G
 hartrees
Energy at 0K-34.424843
Energy at 298.15K-34.429667
Nuclear repulsion energy73.691345
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 HF/CEP-121G
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 3364 3069 12.21      
2 A 3314 3024 17.13      
3 A 3273 2987 11.23      
4 A 3155 2879 26.20      
5 A 2465 2249 51.31      
6 A 1811 1653 18.63      
7 A 1625 1483 18.87      
8 A 1571 1433 5.39      
9 A 1527 1393 2.15      
10 A 1372 1252 1.78      
11 A 1227 1120 0.53      
12 A 1030 940 14.46      
13 A 940 857 1.37      
14 A 718 655 0.21      
15 A 433 395 0.11      
16 A 177 161 4.42      
17 A 3228 2946 31.12      
18 A 1624 1482 13.21      
19 A 1200 1095 0.74      
20 A 1101 1005 3.73      
21 A 847 773 55.04      
22 A 581 530 4.61      
23 A 317 290 1.73      
24 A 139 127 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 18518.7 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 16898.3 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 HF/CEP-121G
ABC
0.40150 0.11265 0.08941

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.283 0.338 0.000
N2 -2.314 -0.186 0.000
C3 0.000 1.013 0.000
H4 -0.046 2.086 0.000
C5 1.179 0.369 0.000
H6 2.067 0.980 0.000
C7 1.394 -1.126 0.000
H8 0.460 -1.673 0.000
H9 1.967 -1.421 0.875
H10 1.967 -1.421 -0.875

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 C7 H8 H9 H10
C11.15681.44982.14132.46173.41113.05082.66123.79723.7972
N21.15682.60653.21043.53684.53403.82543.14764.54074.5407
C31.44982.60651.07351.34302.06752.55302.72543.24923.2492
H42.14133.21041.07352.10842.38503.51943.79284.13664.1366
C52.46173.53681.34302.10841.07821.51052.16522.14272.1427
H63.41114.53402.06752.38501.07822.21073.10202.55722.5572
C73.05083.82542.55303.51941.51052.21071.08261.08701.0870
H82.66123.14762.72543.79282.16523.10201.08261.76091.7609
H93.79724.54073.24924.13662.14272.55721.08701.76091.7509
H103.79724.54073.24924.13662.14272.55721.08701.76091.7509

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 115.310 C1 C3 C5 123.595
N2 C1 C3 179.174 C3 C5 H6 116.858
C3 C5 C7 126.839 H4 C3 C5 121.095
C5 C7 H8 112.183 C5 C7 H9 110.096
C5 C7 H10 110.096 H6 C5 C7 116.303
H8 C7 H9 108.511 H8 C7 H10 108.511
H9 C7 H10 107.300
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.409      
2 N 0.144      
3 C -0.086      
4 H 0.216      
5 C -0.001      
6 H 0.167      
7 C -0.564      
8 H 0.193      
9 H 0.171      
10 H 0.171      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.574 1.010 0.000 4.684
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.589 -2.266 0.000
y -2.266 -27.566 0.000
z 0.000 0.000 -31.680
Traceless
 xyz
x -7.966 -2.266 0.000
y -2.266 7.069 0.000
z 0.000 0.000 0.897
Polar
3z2-r21.794
x2-y2-10.023
xy-2.266
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.293 -0.426 0.000
y -0.426 6.211 0.000
z 0.000 0.000 4.129


<r2> (average value of r2) Å2
<r2> 103.105
(<r2>)1/2 10.154