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

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-210.092790
Energy at 298.15K-210.097237
Nuclear repulsion energy138.498174
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 mPW1PW91/6-31G*
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' 3218 3052 6.40      
2 A' 3210 3044 4.99      
3 A' 3170 3006 9.48      
4 A' 3070 2911 11.81      
5 A' 2378 2255 25.66      
6 A' 1743 1653 23.14      
7 A' 1515 1437 17.96      
8 A' 1442 1367 2.44      
9 A' 1350 1280 0.99      
10 A' 1329 1260 0.48      
11 A' 1154 1095 0.15      
12 A' 1064 1009 6.38      
13 A' 927 879 8.05      
14 A' 567 538 0.05      
15 A' 398 377 1.51      
16 A' 177 167 4.11      
17 A" 3131 2970 9.21      
18 A" 1506 1428 10.04      
19 A" 1082 1026 0.16      
20 A" 1002 950 40.76      
21 A" 813 771 1.68      
22 A" 507 480 6.04      
23 A" 200 189 1.88      
24 A" 175 166 0.71      

Unscaled Zero Point Vibrational Energy (zpe) 17562.3 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 16654.3 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 mPW1PW91/6-31G*
ABC
1.28403 0.07661 0.07328

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.653 0.421 0.000
H2 2.632 -1.123 0.879
H3 2.632 -1.123 -0.879
C4 2.246 -0.593 0.000
H5 0.263 -1.563 0.000
C6 0.757 -0.594 0.000
H7 0.450 1.500 0.000
C8 0.000 0.511 0.000
N9 -2.586 0.449 0.000
C10 -1.425 0.467 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 H5 C6 H7 C8 N9 C10
H11.77581.77581.09243.10632.15082.45402.65495.23924.0781
H21.77581.75711.09592.56462.13703.52323.21985.51954.4444
H31.77581.75711.09592.56462.13703.52323.21985.51954.4444
C41.09241.09591.09592.20751.48912.75852.50274.94283.8205
H53.10632.56462.56462.20751.08783.06952.09113.48792.6402
C62.15082.13702.13701.48911.08782.11691.33953.50162.4258
H72.45403.52323.52322.75853.06952.11691.08683.21252.1403
C82.65493.21983.21982.50272.09111.33951.08682.58651.4252
N95.23925.51955.51954.94283.48793.50163.21252.58651.1614
C104.07814.44444.44443.82052.64022.42582.14031.42521.1614

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 108.479 H1 C4 H3 108.479
H1 C4 C6 111.932 H2 C4 H3 106.575
H2 C4 C6 110.597 H3 C4 C6 110.597
C4 C6 H5 117.030 C4 C6 C8 124.369
H5 C6 C8 118.601 C6 C8 H7 121.146
C6 C8 C10 122.635 H7 C8 C10 116.219
C8 C10 N9 179.121
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.194      
2 H 0.204      
3 H 0.204      
4 C -0.574      
5 H 0.200      
6 C -0.086      
7 H 0.212      
8 C -0.187      
9 N -0.487      
10 C 0.321      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.617 -0.645 0.000 4.662
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.688 0.843 0.000
y 0.843 -26.685 0.000
z 0.000 0.000 -30.340
Traceless
 xyz
x -9.175 0.843 0.000
y 0.843 7.329 0.000
z 0.000 0.000 1.846
Polar
3z2-r23.692
x2-y2-11.003
xy0.843
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> 151.017
(<r2>)1/2 12.289