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

using model chemistry: B3PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-210.083202
Energy at 298.15K-210.087783
Nuclear repulsion energy141.901671
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 B3PW91/6-31G(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 3201 3078 3.58      
2 A 3172 3050 7.71      
3 A 3147 3026 1.48      
4 A 3038 2921 7.85      
5 A 2341 2251 16.22      
6 A 1703 1637 17.36      
7 A 1472 1416 14.99      
8 A 1419 1364 4.89      
9 A 1386 1333 3.80      
10 A 1256 1208 0.34      
11 A 1119 1076 0.17      
12 A 970 933 15.05      
13 A 912 877 2.18      
14 A 669 643 2.31      
15 A 400 384 0.19      
16 A 158 152 4.87      
17 A 3099 2979 7.36      
18 A 1470 1414 7.63      
19 A 1062 1021 0.10      
20 A 989 951 0.67      
21 A 759 730 32.86      
22 A 541 520 1.73      
23 A 296 285 3.52      
24 A 161 155 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 17371.0 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 16700.5 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 B3PW91/6-31G(2df,p)
ABC
0.40602 0.11531 0.09132

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.219 0.249 0.000
N2 -2.221 -0.334 0.000
C3 0.000 0.985 0.000
H4 -0.101 2.066 0.000
C5 1.209 0.408 0.000
H6 2.074 1.068 0.000
C7 1.484 -1.055 0.000
H8 0.566 -1.646 0.000
H9 2.080 -1.331 0.878
H10 2.080 -1.331 -0.878

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 C7 H8 H9 H10
C11.15951.42352.13292.43233.39283.00122.60233.76173.7617
N21.15952.58293.20193.50864.51773.77473.07944.50154.5015
C31.42352.58291.08571.33932.07562.52292.69043.23463.2346
H42.13293.20191.08572.11302.39303.50063.77074.13154.1315
C52.43233.50861.33932.11301.08851.48872.15152.13432.1343
H63.39284.51772.07562.39301.08852.20353.10452.55502.5550
C73.00123.77472.52293.50061.48872.20351.09221.09671.0967
H82.60233.07942.69043.77072.15153.10451.09221.77891.7789
H93.76174.50153.23464.13152.13432.55501.09671.77891.7567
H103.76174.50153.23464.13152.13432.55501.09671.77891.7567

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 115.776 C1 C3 C5 123.352
N2 C1 C3 179.071 C3 C5 H6 117.132
C3 C5 C7 126.203 H4 C3 C5 120.872
C5 C7 H8 112.038 C5 C7 H9 110.367
C5 C7 H10 110.367 H6 C5 C7 116.665
H8 C7 H9 108.723 H8 C7 H10 108.723
H9 C7 H10 106.443
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.298      
2 N -0.359      
3 C -0.221      
4 H 0.165      
5 C -0.031      
6 H 0.145      
7 C -0.514      
8 H 0.181      
9 H 0.168      
10 H 0.168      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.015 1.155 0.000 4.178
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.563 -2.454 0.000
y -2.454 -26.681 0.000
z 0.000 0.000 -30.122
Traceless
 xyz
x -6.161 -2.454 0.000
y -2.454 5.661 0.000
z 0.000 0.000 0.500
Polar
3z2-r21.000
x2-y2-7.881
xy-2.454
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.206 -0.119 0.000
y -0.119 6.608 0.000
z 0.000 0.000 4.163


<r2> (average value of r2) Å2
<r2> 125.576
(<r2>)1/2 11.206