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

using model chemistry: mPW1PW91/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/cc-pVDZ
 hartrees
Energy at 0K-210.107068
Energy at 298.15K-210.111532
Nuclear repulsion energy138.305527
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 mPW1PW91/cc-pVDZ
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 3070 4.88      
2 A' 3194 3061 5.02      
3 A' 3165 3033 6.29      
4 A' 3057 2929 11.24      
5 A' 2371 2272 24.73      
6 A' 1737 1664 24.43      
7 A' 1459 1399 18.53      
8 A' 1395 1337 1.61      
9 A' 1322 1267 0.69      
10 A' 1293 1239 0.81      
11 A' 1143 1095 0.27      
12 A' 1060 1016 8.32      
13 A' 914 875 9.28      
14 A' 567 543 0.00      
15 A' 397 380 1.54      
16 A' 176 169 3.36      
17 A" 3126 2996 5.99      
18 A" 1451 1390 9.44      
19 A" 1060 1016 0.49      
20 A" 990 949 37.26      
21 A" 807 773 1.31      
22 A" 504 483 4.14      
23 A" 205 196 1.94      
24 A" 175 168 0.47      

Unscaled Zero Point Vibrational Energy (zpe) 17383.8 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 16658.9 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 mPW1PW91/cc-pVDZ
ABC
1.27714 0.07648 0.07314

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.660 0.422 0.000
H2 2.632 -1.130 0.882
H3 2.632 -1.130 -0.882
C4 2.247 -0.594 0.000
H5 0.259 -1.566 0.000
C6 0.760 -0.593 0.000
H7 0.451 1.508 0.000
C8 0.000 0.512 0.000
N9 -2.588 0.449 0.000
C10 -1.426 0.467 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 H5 C6 H7 C8 N9 C10
H11.78561.78561.09773.11762.15512.46232.66205.24874.0867
H21.78561.76341.10142.56872.13843.53523.22565.52484.4495
H31.78561.76341.10142.56872.13843.53523.22565.52484.4495
C41.09771.10141.10142.21231.48712.76532.50464.94623.8231
H53.11762.56872.56872.21231.09423.08022.09483.48842.6411
C62.15512.13842.13841.48711.09422.12381.34143.50622.4292
H72.46233.53523.53522.76533.08022.12381.09283.21802.1458
C82.66203.22563.22562.50462.09481.34141.09282.58891.4266
N95.24875.52485.52484.94623.48843.50623.21802.58891.1624
C104.08674.44954.44953.82312.64112.42922.14581.42661.1624

picture of (E)-2-Butenenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C4 H2 108.578 H1 C4 H3 108.578
H1 C4 C6 112.091 H2 C4 H3 106.367
H2 C4 C6 110.516 H3 C4 C6 110.516
C4 C6 H5 117.154 C4 C6 C8 124.545
H5 C6 C8 118.300 C6 C8 H7 121.160
C6 C8 C10 122.677 H7 C8 C10 116.163
C8 C10 N9 179.087
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.051      
2 H 0.074      
3 H 0.074      
4 C -0.037      
5 H 0.040      
6 C -0.063      
7 H 0.055      
8 C -0.024      
9 N -0.146      
10 C -0.023      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.533 -0.649 0.000 4.580
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.346 0.726 0.000
y 0.726 -26.985 0.000
z 0.000 0.000 -30.558
Traceless
 xyz
x -8.574 0.726 0.000
y 0.726 6.967 0.000
z 0.000 0.000 1.607
Polar
3z2-r23.214
x2-y2-10.361
xy0.726
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> 151.341
(<r2>)1/2 12.302