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: PBEPBE/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/6-31+G**
 hartrees
Energy at 0K-209.882957
Energy at 298.15K-209.888096
Nuclear repulsion energy146.599200
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 PBEPBE/6-31+G**
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' 3192 3156 3.21      
2 A' 3113 3078 0.40      
3 A' 3095 3059 3.13      
4 A' 2258 2232 38.99      
5 A' 1460 1443 0.97      
6 A' 1340 1325 0.22      
7 A' 1193 1179 0.75      
8 A' 1105 1092 0.45      
9 A' 1027 1015 8.94      
10 A' 952 942 26.41      
11 A' 795 786 2.23      
12 A' 741 732 3.42      
13 A' 514 508 1.13      
14 A' 206 204 3.29      
15 A" 3179 3143 0.21      
16 A" 3092 3057 9.44      
17 A" 1424 1408 4.06      
18 A" 1162 1148 0.89      
19 A" 1066 1054 2.84      
20 A" 1042 1030 8.26      
21 A" 872 862 0.32      
22 A" 807 798 9.53      
23 A" 533 527 0.23      
24 A" 208 206 1.96      

Unscaled Zero Point Vibrational Energy (zpe) 17187.2 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 16991.2 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 PBEPBE/6-31+G**
ABC
0.52680 0.11300 0.10712

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.343 2.038 1.280
H2 0.343 2.038 -1.280
H3 -1.131 0.930 -1.268
H4 -1.131 0.930 1.268
H5 1.669 0.332 0.000
C6 0.580 0.216 0.000
N7 -0.231 -2.272 0.000
C8 0.136 -1.154 0.000
C9 -0.231 1.272 0.752
C10 -0.231 1.272 -0.752

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 C6 N7 C8 C9 C10
H12.55913.14491.84392.51132.23904.53213.44511.09312.2453
H22.55911.84393.14492.51132.23904.53213.44512.24531.0931
H33.14491.84392.53623.13092.24603.55922.74852.23751.0926
H41.84393.14492.53623.13092.24603.55922.74851.09262.2375
H52.51132.51133.13093.13091.09473.22252.13462.24872.2487
C62.23902.23902.24602.24601.09472.61661.44031.52871.5287
N74.53214.53213.55923.55923.22252.61661.17633.62243.6224
C83.44513.44512.74852.74852.13461.44031.17632.56592.5659
C91.09312.24532.23751.09262.24871.52873.62242.56591.5032
C102.24531.09311.09262.23752.24871.52873.62242.56591.5032

picture of Cyclopropanecarbonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C9 H4 115.051 H1 C9 C6 116.309
H1 C9 C10 118.881 H2 C10 H3 115.051
H2 C10 C6 116.309 H2 C10 C9 118.881
H3 C10 C6 116.940 H3 C10 C9 118.210
H4 C9 C6 116.940 H4 C9 C10 118.210
H5 C6 C8 114.024 H5 C6 C9 117.033
H5 C6 C10 117.033 C6 C8 N7 179.813
C6 C9 C10 60.551 C6 C10 C9 60.551
C8 C6 C9 119.563 C8 C6 C10 119.563
C9 C6 C10 58.899
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.185      
2 H 0.185      
3 H 0.194      
4 H 0.194      
5 H 0.203      
6 C 0.151      
7 N -0.489      
8 C 0.089      
9 C -0.357      
10 C -0.357      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.890 4.340 0.000 4.430
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.241 -0.451 0.000
y -0.451 -38.434 0.000
z 0.000 0.000 -29.635
Traceless
 xyz
x 5.794 -0.451 0.000
y -0.451 -9.496 0.000
z 0.000 0.000 3.702
Polar
3z2-r27.404
x2-y210.194
xy-0.451
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.013 0.377 0.000
y 0.377 10.009 0.000
z 0.000 0.000 6.270


<r2> (average value of r2) Å2
<r2> 115.991
(<r2>)1/2 10.770