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

using model chemistry: BLYP/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 BLYP/3-21G*
 hartrees
Energy at 0K-208.914784
Energy at 298.15K-208.919392
Nuclear repulsion energy140.459816
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 BLYP/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 3104 3084 12.76      
2 A 3085 3065 3.77      
3 A 3058 3038 2.63      
4 A 2965 2946 9.15      
5 A 2220 2206 5.04      
6 A 1623 1613 6.64      
7 A 1508 1498 18.31      
8 A 1427 1417 11.42      
9 A 1415 1406 0.20      
10 A 1268 1260 0.81      
11 A 1120 1112 2.36      
12 A 950 944 13.70      
13 A 867 861 2.79      
14 A 684 680 1.02      
15 A 413 411 0.22      
16 A 165 164 3.23      
17 A 3002 2983 12.70      
18 A 1514 1504 10.06      
19 A 1070 1064 0.26      
20 A 970 964 1.00      
21 A 768 763 35.14      
22 A 569 565 10.46      
23 A 300 298 1.84      
24 A 158 157 0.24      

Unscaled Zero Point Vibrational Energy (zpe) 17111.6 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 17000.4 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 BLYP/3-21G*
ABC
0.39482 0.11358 0.08970

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.225 0.263 0.000
N2 -2.239 -0.342 0.000
C3 0.000 0.994 0.000
H4 -0.093 2.084 0.000
C5 1.225 0.416 0.000
H6 2.102 1.072 0.000
C7 1.491 -1.073 0.000
H8 0.552 -1.646 0.000
H9 2.083 -1.357 0.889
H10 2.083 -1.357 -0.889

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 C7 H8 H9 H10
C11.18011.42712.14452.45523.42413.02732.60863.78983.7898
N21.18012.60723.23873.54584.56503.80083.08064.52784.5278
C31.42712.60721.09381.35452.10322.54902.69773.26483.2648
H42.14453.23871.09382.12582.41723.53243.78584.16754.1675
C52.45523.54581.35452.12581.09461.51312.16962.16142.1614
H63.42414.56502.10322.41721.09462.23013.12872.58632.5863
C73.02733.80082.54903.53241.51312.23011.10011.10531.1053
H82.60863.08062.69773.78582.16963.12871.10011.79411.7941
H93.78984.52783.26484.16752.16142.58631.10531.79411.7780
H103.78984.52783.26484.16752.16142.58631.10531.79411.7780

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 115.944 C1 C3 C5 123.914
N2 C1 C3 179.994 C3 C5 H6 117.970
C3 C5 C7 125.383 H4 C3 C5 120.142
C5 C7 H8 111.270 C5 C7 H9 110.305
C5 C7 H10 110.305 H6 C5 C7 116.647
H8 C7 H9 108.881 H8 C7 H10 108.881
H9 C7 H10 107.088
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.280      
2 N -0.473      
3 C -0.156      
4 H 0.215      
5 C -0.097      
6 H 0.188      
7 C -0.584      
8 H 0.215      
9 H 0.206      
10 H 0.206      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.625 1.015 0.000 3.764
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.387 -2.390 0.000
y -2.390 -27.121 0.000
z 0.000 0.000 -30.813
Traceless
 xyz
x -5.421 -2.390 0.000
y -2.390 5.480 0.000
z 0.000 0.000 -0.059
Polar
3z2-r2-0.118
x2-y2-7.267
xy-2.390
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> 127.651
(<r2>)1/2 11.298