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: CISD/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 CISD/6-31G*
 hartrees
Energy at 0K-209.380485
Energy at 298.15K-209.385910
HF Energy-208.794072
Nuclear repulsion energy148.211461
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 CISD/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' 3371 3121 6.06      
2 A' 3309 3063 0.68      
3 A' 3279 3036 3.23      
4 A' 2482 2298 23.08      
5 A' 1610 1490 0.45      
6 A' 1473 1364 0.60      
7 A' 1292 1196 1.54      
8 A' 1205 1115 1.08      
9 A' 1159 1073 4.31      
10 A' 1024 948 25.67      
11 A' 857 793 2.32      
12 A' 799 740 5.08      
13 A' 555 514 0.44      
14 A' 222 206 4.71      
15 A" 3358 3109 0.25      
16 A" 3272 3029 8.68      
17 A" 1560 1444 2.87      
18 A" 1273 1178 0.70      
19 A" 1194 1105 1.08      
20 A" 1172 1085 7.21      
21 A" 994 920 1.40      
22 A" 885 819 9.61      
23 A" 576 534 1.32      
24 A" 226 209 3.20      

Unscaled Zero Point Vibrational Energy (zpe) 18572.4 cm-1
Scaled (by 0.9258) Zero Point Vibrational Energy (zpe) 17194.3 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 CISD/6-31G*
ABC
0.53593 0.11545 0.10947

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.770 1.031 1.265
H2 -1.770 1.031 -1.265
H3 -1.253 -0.712 -1.255
H4 -1.253 -0.712 1.255
H5 0.283 1.664 0.000
C6 0.000 0.622 0.000
N7 2.010 -1.024 0.000
C8 1.121 -0.289 0.000
C9 -1.253 0.239 0.745
C10 -1.253 0.239 -0.745

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 C6 N7 C8 C9 C10
H12.52973.10741.81812.49302.21364.48503.42121.07952.2212
H22.52971.81813.10742.49302.21364.48503.42122.22121.0795
H33.10741.81812.51023.09542.21953.51042.71902.21451.0792
H41.81813.10742.51023.09542.21953.51042.71901.07922.2145
H52.49302.49303.09543.09541.07983.19582.12632.22372.2237
C62.21362.21362.21952.21951.07982.59841.44531.50721.5072
N74.48504.48503.51043.51043.19582.59841.15323.57753.5775
C83.42123.42122.71902.71902.12631.44531.15322.54402.5440
C91.07952.22122.21451.07922.22371.50723.57752.54401.4897
C102.22121.07951.07922.21452.22371.50723.57752.54401.4897

picture of Cyclopropanecarbonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C9 H4 114.753 H1 C9 C6 116.723
H1 C9 C10 118.798 H2 C10 H3 114.753
H2 C10 C6 116.723 H2 C10 C9 118.798
H3 C10 C6 117.257 H3 C10 C9 118.216
H4 C9 C6 117.257 H4 C9 C10 118.216
H5 C6 C8 113.934 H5 C6 C9 117.587
H5 C6 C10 117.587 C6 C8 N7 179.531
C6 C9 C10 60.383 C6 C10 C9 60.383
C8 C6 C9 118.987 C8 C6 C10 118.987
C9 C6 C10 59.234
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability