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All results from a given calculation for C4H5N (Cyclopropanecarbonitrile)

using model chemistry: MP2/CEP-121G*

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/CEP-121G*
 hartrees
Energy at 0K-35.184359
Energy at 298.15K-35.189562
HF Energy-34.505512
Nuclear repulsion energy76.443748
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/CEP-121G*
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' 3296 3140 6.88      
2 A' 3227 3075 1.15      
3 A' 3183 3033 3.30      
4 A' 2141 2040 4.00      
5 A' 1535 1463 0.95      
6 A' 1391 1325 0.32      
7 A' 1228 1170 1.22      
8 A' 1146 1092 0.76      
9 A' 1095 1043 9.62      
10 A' 965 920 24.74      
11 A' 818 779 1.64      
12 A' 761 725 4.23      
13 A' 508 484 1.08      
14 A' 197 187 2.87      
15 A" 3283 3128 0.26      
16 A" 3178 3028 9.29      
17 A" 1498 1427 3.02      
18 A" 1219 1162 0.80      
19 A" 1140 1086 5.29      
20 A" 1096 1044 5.68      
21 A" 920 877 1.39      
22 A" 844 804 11.12      
23 A" 524 499 0.09      
24 A" 208 198 1.59      

Unscaled Zero Point Vibrational Energy (zpe) 17700.2 cm-1
Scaled (by 0.9528) Zero Point Vibrational Energy (zpe) 16864.8 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/CEP-121G*
ABC
0.51664 0.11331 0.10765

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.821 0.873 1.272
H2 -1.821 0.873 -1.272
H3 -1.128 -0.830 -1.263
H4 -1.128 -0.830 1.263
H5 0.189 1.702 0.000
C6 0.000 0.632 0.000
N7 2.151 -0.902 0.000
C8 1.192 -0.200 0.000
C9 -1.227 0.125 0.757
C10 -1.227 0.125 -0.757

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 C6 N7 C8 C9 C10
H12.54413.13191.83892.51942.23464.53293.44281.08562.2426
H22.54411.83893.13192.51942.23464.53293.44282.24261.0856
H33.13191.83892.52643.12082.23743.51422.71572.23651.0854
H41.83893.13192.52643.12082.23743.51422.71571.08542.2365
H52.51942.51943.12083.12081.08593.26002.15022.25062.2506
C62.23462.23462.23742.23741.08592.64211.45431.52841.5284
N74.53294.53293.51423.51423.26002.64211.18803.61073.6107
C83.44283.44282.71572.71572.15021.45431.18802.55582.5558
C91.08562.24262.23651.08542.25061.52843.61072.55581.5136
C102.24261.08561.08542.23652.25061.52843.61072.55581.5136

picture of Cyclopropanecarbonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C9 H4 115.783 H1 C9 C6 116.467
H1 C9 C10 118.337 H2 C10 H3 115.783
H2 C10 C6 116.467 H2 C10 C9 118.337
H3 C10 C6 116.724 H3 C10 C9 117.812
H4 C9 C6 116.724 H4 C9 C10 117.812
H5 C6 C8 114.887 H5 C6 C9 117.832
H5 C6 C10 117.832 C6 C8 N7 178.703
C6 C9 C10 60.320 C6 C10 C9 60.320
C8 C6 C9 117.915 C8 C6 C10 117.915
C9 C6 C10 59.360
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability