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

using model chemistry: HF/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 HF/3-21G
 hartrees
Energy at 0K-207.645749
Energy at 298.15K-207.650700
Nuclear repulsion energy142.751340
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 HF/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 3370 3052 5.31      
2 A 3339 3023 6.69      
3 A 3291 2980 3.57      
4 A 3198 2896 10.52      
5 A 2580 2336 21.36      
6 A 1846 1672 14.17      
7 A 1653 1497 17.00      
8 A 1586 1436 9.52      
9 A 1565 1418 0.83      
10 A 1400 1268 1.01      
11 A 1242 1125 1.74      
12 A 1026 929 14.09      
13 A 932 844 0.78      
14 A 756 685 0.69      
15 A 467 423 0.06      
16 A 189 172 4.14      
17 A 3243 2937 13.10      
18 A 1656 1500 12.50      
19 A 1228 1112 0.31      
20 A 1136 1029 3.04      
21 A 887 803 54.14      
22 A 636 576 8.61      
23 A 338 306 1.81      
24 A 145 131 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 18853.6 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 17073.9 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 HF/3-21G
ABC
0.40430 0.11721 0.09241

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.220 0.246 0.000
N2 -2.196 -0.344 0.000
C3 0.000 0.985 0.000
H4 -0.107 2.052 0.000
C5 1.196 0.422 0.000
H6 2.054 1.068 0.000
C7 1.479 -1.056 0.000
H8 0.568 -1.639 0.000
H9 2.062 -1.322 0.876
H10 2.062 -1.322 -0.876

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 C7 H8 H9 H10
C11.14091.42582.12112.42213.37562.99592.59713.74103.7410
N21.14092.56673.17903.47744.47883.74273.05154.45564.4556
C31.42582.56671.07231.32202.05612.52012.68383.21573.2157
H42.12113.17901.07232.08672.37413.48883.75124.10534.1053
C52.42213.47741.32202.08671.07461.50462.15392.13502.1350
H63.37564.47882.05612.37411.07462.20133.08832.54612.5461
C72.99593.74272.52013.48881.50462.20131.08111.08541.0854
H82.59713.05152.68383.75122.15393.08831.08111.76061.7606
H93.74104.45563.21574.10532.13502.54611.08541.76061.7513
H103.74104.45563.21574.10532.13502.54611.08541.76061.7513

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 115.497 C1 C3 C5 123.593
N2 C1 C3 179.958 C3 C5 H6 117.794
C3 C5 C7 126.019 H4 C3 C5 120.909
C5 C7 H8 111.772 C5 C7 H9 109.983
C5 C7 H10 109.983 H6 C5 C7 116.188
H8 C7 H9 108.716 H8 C7 H10 108.716
H9 C7 H10 107.564
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.281 0.548   0.681
2 N -0.515 -0.545   -0.557
3 C -0.204 -0.414   -0.713
4 H 0.282 0.185   0.275
5 C -0.159 0.038   0.194
6 H 0.250 0.099   0.115
7 C -0.650 0.008   -0.421
8 H 0.248 0.038   0.163
9 H 0.234 0.022   0.132
10 H 0.234 0.022   0.132


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.070 1.239 0.000 4.254
CHELPG 4.240 1.353 0.000 4.450
AIM        
ESP 4.048 1.239 0.000 4.233


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.681 -2.611 0.000
y -2.611 -27.629 0.000
z 0.000 0.000 -31.507
Traceless
 xyz
x -6.113 -2.611 0.000
y -2.611 5.965 0.000
z 0.000 0.000 0.148
Polar
3z2-r20.295
x2-y2-8.052
xy-2.611
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.041 -0.167 0.000
y -0.167 5.502 0.000
z 0.000 0.000 3.002


<r2> (average value of r2) Å2
<r2> 125.012
(<r2>)1/2 11.181