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

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-208.917823
Energy at 298.15K-208.922554
Nuclear repulsion energy141.754899
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 B3PW91/3-21G
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 3203 3079 5.09      
2 A 3180 3057 4.75      
3 A 3148 3025 1.72      
4 A 3048 2930 5.90      
5 A 2332 2241 9.58      
6 A 1698 1632 9.84      
7 A 1538 1478 21.53      
8 A 1462 1405 16.70      
9 A 1447 1391 1.39      
10 A 1297 1247 1.33      
11 A 1152 1107 2.20      
12 A 983 945 16.19      
13 A 908 872 2.44      
14 A 707 679 1.39      
15 A 429 412 0.22      
16 A 172 165 3.49      
17 A 3101 2981 7.83      
18 A 1541 1481 13.86      
19 A 1103 1061 0.52      
20 A 1014 975 1.13      
21 A 800 769 46.83      
22 A 589 566 12.95      
23 A 310 298 1.91      
24 A 156 150 0.30      

Unscaled Zero Point Vibrational Energy (zpe) 17658.4 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 16973.3 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 B3PW91/3-21G
ABC
0.39865 0.11651 0.09170

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.212 0.254 0.000
N2 -2.210 -0.353 0.000
C3 0.000 0.992 0.000
H4 -0.100 2.074 0.000
C5 1.214 0.419 0.000
H6 2.086 1.069 0.000
C7 1.471 -1.058 0.000
H8 0.535 -1.625 0.000
H9 2.057 -1.342 0.884
H10 2.057 -1.342 -0.884

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 C7 H8 H9 H10
C11.16791.41922.13332.43133.39742.98632.56613.74433.7443
N21.16792.58713.21643.50934.52513.74723.02544.46874.4687
C31.41922.58711.08671.34222.08742.52282.67163.23483.2348
H42.13333.21641.08672.11302.40553.50353.75364.13604.1360
C52.43133.50931.34222.11301.08821.49872.15372.14352.1435
H63.39744.52512.08742.40551.08822.21423.10892.56852.5685
C72.98633.74722.52283.50351.49872.21421.09411.09851.0985
H82.56613.02542.67163.75362.15373.10891.09411.78301.7830
H93.74434.46873.23484.13602.14352.56851.09851.78301.7680
H103.74434.46873.23484.13602.14352.56851.09851.78301.7680

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 116.081 C1 C3 C5 123.374
N2 C1 C3 179.987 C3 C5 H6 118.006
C3 C5 C7 125.163 H4 C3 C5 120.544
C5 C7 H8 111.372 C5 C7 H9 110.289
C5 C7 H10 110.289 H6 C5 C7 116.832
H8 C7 H9 108.807 H8 C7 H10 108.807
H9 C7 H10 107.163
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.296      
2 N -0.500      
3 C -0.202      
4 H 0.265      
5 C -0.146      
6 H 0.236      
7 C -0.685      
8 H 0.252      
9 H 0.242      
10 H 0.242      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.801 1.101 0.000 3.957
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.331 -2.492 0.000
y -2.492 -26.861 0.000
z 0.000 0.000 -30.915
Traceless
 xyz
x -5.443 -2.492 0.000
y -2.492 5.762 0.000
z 0.000 0.000 -0.319
Polar
3z2-r2-0.638
x2-y2-7.470
xy-2.492
xz0.000
yz0.000


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> 125.284
(<r2>)1/2 11.193