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All results from a given calculation for C4H5N (Cyclopropanecarbonitrile)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-208.093460
Energy at 298.15K-208.098842
HF Energy-207.615315
Nuclear repulsion energy146.075990
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 MP2/3-21G*
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' 3312 3150 3.46      
2 A' 3242 3084 0.18      
3 A' 3211 3055 1.59      
4 A' 2155 2050 0.72      
5 A' 1569 1493 0.80      
6 A' 1415 1346 0.39      
7 A' 1185 1127 2.62      
8 A' 1177 1120 2.80      
9 A' 1149 1093 11.05      
10 A' 938 892 17.26      
11 A' 841 800 0.59      
12 A' 759 722 4.64      
13 A' 548 521 1.79      
14 A' 232 221 2.25      
15 A" 3296 3136 0.17      
16 A" 3206 3050 5.26      
17 A" 1557 1481 4.57      
18 A" 1247 1186 0.75      
19 A" 1184 1126 0.98      
20 A" 1165 1108 12.91      
21 A" 947 901 0.61      
22 A" 828 788 10.11      
23 A" 581 553 0.16      
24 A" 235 224 1.12      

Unscaled Zero Point Vibrational Energy (zpe) 17988.9 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 17112.8 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 MP2/3-21G*
ABC
0.51688 0.11267 0.10678

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.812 1.005 1.275
H2 -1.812 1.005 -1.275
H3 -1.247 -0.738 -1.268
H4 -1.247 -0.738 1.268
H5 0.247 1.690 0.000
C6 0.000 0.635 0.000
N7 2.054 -1.010 0.000
C8 1.129 -0.264 0.000
C9 -1.273 0.218 0.761
C10 -1.273 0.218 -0.761

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 C6 N7 C8 C9 C10
H12.55003.13451.83232.51722.24644.54223.44691.08302.2486
H22.55001.83233.13452.51722.24644.54223.44692.24861.0830
H33.13451.83232.53643.12062.24713.54722.73472.24391.0828
H41.83233.13452.53643.12062.24713.54722.73471.08282.2439
H52.51722.51723.12063.12061.08363.24812.14272.24892.2489
C62.24642.24642.24712.24711.08362.63121.44231.54091.5409
N74.54224.54223.54723.54723.24812.63121.18893.62763.6276
C83.44693.44692.73472.73472.14271.44231.18892.56532.5653
C91.08302.24862.24391.08282.24891.54093.62762.56531.5228
C102.24861.08301.08282.24392.24891.54093.62762.56531.5228

picture of Cyclopropanecarbonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C9 H4 115.569 H1 C9 C6 116.688
H1 C9 C10 118.310 H2 C10 H3 115.569
H2 C10 C6 116.688 H2 C10 C9 118.310
H3 C10 C6 116.760 H3 C10 C9 117.905
H4 C9 C6 116.760 H4 C9 C10 117.905
H5 C6 C8 115.313 H5 C6 C9 116.861
H5 C6 C10 116.861 C6 C8 N7 179.645
C6 C9 C10 60.387 C6 C10 C9 60.387
C8 C6 C9 118.571 C8 C6 C10 118.571
C9 C6 C10 59.225
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability