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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-210.037061
Energy at 298.15K-210.041548
Nuclear repulsion energy138.102727
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' 3222 3050 8.76      
2 A' 3210 3039 6.90      
3 A' 3171 3001 10.24      
4 A' 3065 2901 13.96      
5 A' 2328 2204 30.61      
6 A' 1742 1649 20.92      
7 A' 1535 1453 20.74      
8 A' 1470 1392 8.51      
9 A' 1374 1300 1.31      
10 A' 1360 1287 0.06      
11 A' 1173 1110 0.51      
12 A' 1075 1018 8.06      
13 A' 943 892 8.55      
14 A' 570 540 0.09      
15 A' 402 381 1.14      
16 A' 179 169 3.37      
17 A" 3132 2965 11.43      
18 A" 1527 1445 14.42      
19 A" 1112 1053 0.21      
20 A" 1018 964 55.96      
21 A" 854 808 0.57      
22 A" 496 470 3.59      
23 A" 193 182 2.02      
24 A" 175 166 0.45      

Unscaled Zero Point Vibrational Energy (zpe) 17662.2 cm-1
Scaled (by 0.9466) Zero Point Vibrational Energy (zpe) 16719.0 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
1.29144 0.07604 0.07278

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 2.655 0.407 0.000
H2 2.638 -1.133 0.879
H3 2.638 -1.133 -0.879
C4 2.248 -0.607 0.000
H5 0.266 -1.578 0.000
C6 0.757 -0.607 0.000
H7 0.462 1.486 0.000
C8 0.000 0.503 0.000
N9 -2.594 0.476 0.000
C10 -1.422 0.481 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 H5 C6 H7 C8 N9 C10
H11.77351.77351.09223.10622.15232.44442.65705.25004.0776
H21.77351.75761.09592.56812.14143.51683.22625.54394.4559
H31.77351.75761.09592.56812.14143.51683.22625.54394.4559
C41.09221.09591.09592.20771.49152.75172.50764.96233.8278
H53.10622.56812.56812.20771.08763.07042.09823.52112.6617
C62.15232.14142.14141.49151.08762.11441.34423.52202.4352
H72.44443.51683.51682.75173.07042.11441.08613.21902.1355
C82.65703.22623.22622.50762.09821.34421.08612.59441.4219
N95.25005.54395.54394.96233.52113.52203.21902.59441.1726
C104.07764.45594.45593.82782.66172.43522.13551.42191.1726

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 108.285 H1 C4 H3 108.285
H1 C4 C6 111.891 H2 C4 H3 106.618
H2 C4 C6 110.784 H3 C4 C6 110.784
C4 C6 H5 116.870 C4 C6 C8 124.245
H5 C6 C8 118.885 C6 C8 H7 120.551
C6 C8 C10 123.350 H7 C8 C10 116.099
C8 C10 N9 179.302
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.186      
2 H 0.197      
3 H 0.197      
4 C -0.554      
5 H 0.195      
6 C -0.078      
7 H 0.213      
8 C -0.119      
9 N -0.302      
10 C 0.065      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.678 -0.707 0.000 4.732
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.341 0.946 0.000
y 0.946 -26.901 0.000
z 0.000 0.000 -30.581
Traceless
 xyz
x -9.599 0.946 0.000
y 0.946 7.560 0.000
z 0.000 0.000 2.039
Polar
3z2-r24.079
x2-y2-11.440
xy0.946
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.628 -1.817 0.000
y -1.817 6.071 0.000
z 0.000 0.000 3.453


<r2> (average value of r2) Å2
<r2> 152.101
(<r2>)1/2 12.333