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: MP2/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/cc-pVTZ
 hartrees
Energy at 0K-209.701558
Energy at 298.15K-209.706818
Nuclear repulsion energy147.938645
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 MP2/cc-pVTZ
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' 3303 3136 1.05      
2 A' 3237 3073 0.23      
3 A' 3198 3037 1.38      
4 A' 2203 2092 5.42      
5 A' 1518 1441 0.83      
6 A' 1394 1323 0.19      
7 A' 1232 1170 0.97      
8 A' 1145 1088 0.42      
9 A' 1069 1015 8.14      
10 A' 979 930 22.46      
11 A' 823 781 1.74      
12 A' 765 727 2.86      
13 A' 520 493 0.37      
14 A' 205 195 3.69      
15 A" 3291 3125 0.25      
16 A" 3194 3032 4.16      
17 A" 1482 1407 3.44      
18 A" 1211 1149 0.71      
19 A" 1123 1066 2.36      
20 A" 1088 1033 6.31      
21 A" 915 869 1.26      
22 A" 841 798 8.93      
23 A" 536 509 0.32      
24 A" 212 201 2.14      

Unscaled Zero Point Vibrational Energy (zpe) 17741.8 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 16845.9 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 MP2/cc-pVTZ
ABC
0.52972 0.11565 0.10981

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.311 2.026 1.260
H2 0.311 2.026 -1.260
H3 -1.116 0.886 -1.252
H4 -1.116 0.886 1.252
H5 1.661 0.357 0.000
C6 0.591 0.226 0.000
N7 -0.235 -2.246 0.000
C8 0.146 -1.138 0.000
C9 -0.235 1.251 0.748
C10 -0.235 1.251 -0.748

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 C6 N7 C8 C9 C10
H12.52063.10611.82712.48962.21504.48733.40961.07832.2211
H22.52061.82713.10612.48962.21504.48733.40962.22111.0783
H33.10611.82712.50313.09232.21713.48562.69362.21521.0783
H41.82713.10612.50313.09232.21713.48562.69361.07832.2152
H52.48962.48963.09233.09231.07883.22052.12822.22632.2263
C62.21502.21502.21712.21711.07882.60631.43451.51371.5137
N74.48734.48733.48563.48563.22052.60631.17193.57543.5754
C83.40963.40962.69362.69362.12821.43451.17192.53162.5316
C91.07832.22112.21521.07832.22631.51373.57542.53161.4959
C102.22111.07831.07832.21522.22631.51373.57542.53161.4959

picture of Cyclopropanecarbonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C9 H4 115.818 H1 C9 C6 116.411
H1 C9 C10 118.369 H2 C10 H3 115.818
H2 C10 C6 116.411 H2 C10 C9 118.369
H3 C10 C6 116.598 H3 C10 C9 117.844
H4 C9 C6 116.598 H4 C9 C10 117.844
H5 C6 C8 114.994 H5 C6 C9 117.376
H5 C6 C10 117.376 C6 C8 N7 179.028
C6 C9 C10 60.388 C6 C10 C9 60.388
C8 C6 C9 118.323 C8 C6 C10 118.323
C9 C6 C10 59.223
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability