return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C4H5N (Cyclopropanecarbonitrile)

using model chemistry: G3B3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at G3B3
 hartrees
Energy at 0K-209.982391
Energy at 298.15K-209.976556
Nuclear repulsion energy 
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/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' 3257 3128 7.15      
2 A' 3183 3057 1.34      
3 A' 3166 3040 4.23      
4 A' 2360 2266 30.32      
5 A' 1530 1469 0.62      
6 A' 1399 1343 0.29      
7 A' 1228 1179 1.41      
8 A' 1150 1104 0.73      
9 A' 1081 1038 4.88      
10 A' 970 931 23.31      
11 A' 821 788 1.98      
12 A' 762 731 4.19      
13 A' 532 511 0.68      
14 A' 215 206 3.99      
15 A" 3244 3115 0.19      
16 A" 3163 3037 11.34      
17 A" 1496 1436 2.42      
18 A" 1215 1167 0.59      
19 A" 1122 1077 1.46      
20 A" 1096 1053 7.16      
21 A" 909 873 0.04      
22 A" 831 798 8.42      
23 A" 553 531 1.00      
24 A" 218 209 2.68      

Unscaled Zero Point Vibrational Energy (zpe) 17748.4 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 17043.8 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/6-31G*
ABC
0.53109 0.11398 0.10803

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.785 1.024 1.273
H2 -1.785 1.024 -1.273
H3 -1.264 -0.728 -1.263
H4 -1.264 -0.728 1.263
H5 0.270 1.671 0.000
C6 0.000 0.618 0.000
N7 2.036 -1.004 0.000
C8 1.129 -0.277 0.000
C9 -1.267 0.227 0.749
C10 -1.267 0.227 -0.749

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 C6 N7 C8 C9 C10
H12.54673.12711.82862.50222.22984.50983.43611.08582.2345
H22.54671.82863.12712.50222.22984.50983.43612.23451.0858
H33.12711.82862.52693.11502.23743.54432.74322.22761.0852
H41.82863.12712.52693.11502.23743.54432.74321.08522.2276
H52.50222.50223.11503.11501.08673.20572.12922.23752.2375
C62.22982.22982.23742.23741.08672.60371.44111.52271.5227
N74.50984.50983.54433.54433.20572.60371.16263.60403.6040
C83.43613.43612.74322.74322.12921.44111.16262.56062.5606
C91.08582.23452.22761.08522.23751.52273.60402.56061.4977
C102.23451.08581.08522.22762.23751.52273.60402.56061.4977

picture of Cyclopropanecarbonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C9 H4 114.769 H1 C9 C6 116.477
H1 C9 C10 118.890 H2 C10 H3 114.769
H2 C10 C6 116.477 H2 C10 C9 118.890
H3 C10 C6 117.171 H3 C10 C9 118.296
H4 C9 C6 117.171 H4 C9 C10 118.296
H5 C6 C8 114.039 H5 C6 C9 117.066
H5 C6 C10 117.066 C6 C8 N7 179.723
C6 C9 C10 60.545 C6 C10 C9 60.545
C8 C6 C9 119.515 C8 C6 C10 119.515
C9 C6 C10 58.909
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.173 0.112   0.151
2 H 0.173 0.112   0.151
3 H 0.185 0.122   0.166
4 H 0.185 0.122   0.166
5 H 0.195 0.129   0.172
6 C -0.187 -0.143   -0.190
7 N -0.473 -0.469   -0.450
8 C 0.343 0.380   0.368
9 C -0.297 -0.183   -0.267
10 C -0.297 -0.183   -0.267


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.563 2.234 0.000 4.205
CHELPG -3.534 2.222 0.000 4.174
AIM        
ESP -3.550 2.238 0.000 4.196


Electric Quadrupole moment
Quadrupole components in D Å


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> 114.597
(<r2>)1/2 10.705