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

using model chemistry: B3LYP/CEP-31G*

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-31G*
 hartrees
Energy at 0K-35.463050
Energy at 298.15K-35.467487
Nuclear repulsion energy72.925059
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-31G*
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 3197 3087 8.30      
2 A 3160 3051 19.74      
3 A 3142 3034 1.44      
4 A 3042 2937 15.97      
5 A 2319 2240 28.32      
6 A 1694 1636 14.31      
7 A 1481 1430 18.36      
8 A 1422 1373 4.86      
9 A 1375 1327 2.11      
10 A 1236 1193 0.47      
11 A 1112 1074 0.40      
12 A 959 927 16.61      
13 A 900 869 2.32      
14 A 648 625 1.41      
15 A 383 370 0.20      
16 A 157 151 3.60      
17 A 3092 2986 24.81      
18 A 1482 1431 12.52      
19 A 1054 1018 0.76      
20 A 980 946 1.24      
21 A 751 725 55.37      
22 A 511 494 4.49      
23 A 276 267 1.68      
24 A 145 140 0.17      

Unscaled Zero Point Vibrational Energy (zpe) 17257.8 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 16665.8 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-31G*
ABC
0.38574 0.11264 0.08864

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.277 0.341 0.000
N2 -2.320 -0.216 0.000
C3 0.000 1.039 0.000
H4 -0.046 2.132 0.000
C5 1.197 0.375 0.000
H6 2.105 0.990 0.000
C7 1.380 -1.130 0.000
H8 0.418 -1.663 0.000
H9 1.961 -1.441 0.888
H10 1.961 -1.441 -0.888

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 C7 H8 H9 H10
C11.18241.45532.17272.47393.44353.03742.62433.80163.8016
N21.18242.63763.26813.56594.58613.81153.09654.54104.5410
C31.45532.63761.09321.36902.10552.57142.73413.28463.2846
H42.17273.26811.09322.15202.43503.55993.82244.19314.1931
C52.47393.56591.36902.15201.09701.51602.18122.16112.1611
H63.44354.58612.10552.43501.09702.24073.14392.59232.5923
C73.03743.81152.57143.55991.51602.24071.10011.10601.1060
H82.62433.09652.73413.82242.18123.14391.10011.79481.7948
H93.80164.54103.28464.19312.16112.59231.10601.79481.7761
H103.80164.54103.28464.19312.16112.59231.10601.79481.7761

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 116.258 C1 C3 C5 122.282
N2 C1 C3 179.428 C3 C5 H6 116.823
C3 C5 C7 126.002 H4 C3 C5 121.460
C5 C7 H8 111.996 C5 C7 H9 110.039
C5 C7 H10 110.039 H6 C5 C7 117.175
H8 C7 H9 108.893 H8 C7 H10 108.893
H9 C7 H10 106.833
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.647      
2 N 0.377      
3 C -0.169      
4 H 0.305      
5 C -0.283      
6 H 0.259      
7 C -0.364      
8 H 0.209      
9 H 0.157      
10 H 0.157      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.304 0.962 0.000 4.410
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.413 -1.950 0.000
y -1.950 -26.489 0.000
z 0.000 0.000 -30.813
Traceless
 xyz
x -6.762 -1.950 0.000
y -1.950 6.624 0.000
z 0.000 0.000 0.138
Polar
3z2-r20.276
x2-y2-8.924
xy-1.950
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.470 -0.334 0.000
y -0.334 6.584 0.000
z 0.000 0.000 4.024


<r2> (average value of r2) Å2
<r2> 103.095
(<r2>)1/2 10.154