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All results from a given calculation for C4H5N (Cyclopropanecarbonitrile)

using model chemistry: HF/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 HF/CEP-121G*
 hartrees
Energy at 0K-34.511946
Energy at 298.15K-34.517454
Nuclear repulsion energy77.256773
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 HF/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' 3407 3078 21.92      
2 A' 3358 3033 2.58      
3 A' 3307 2988 9.08      
4 A' 2548 2301 47.07      
5 A' 1642 1484 0.34      
6 A' 1493 1348 1.96      
7 A' 1294 1169 1.59      
8 A' 1225 1107 1.10      
9 A' 1182 1068 2.33      
10 A' 1011 913 31.07      
11 A' 859 776 3.76      
12 A' 798 721 9.82      
13 A' 570 515 1.08      
14 A' 231 209 4.81      
15 A" 3393 3065 0.19      
16 A" 3299 2980 22.04      
17 A" 1593 1439 1.13      
18 A" 1302 1176 0.65      
19 A" 1223 1105 0.75      
20 A" 1203 1087 5.17      
21 A" 1006 909 3.18      
22 A" 884 799 11.43      
23 A" 602 543 1.31      
24 A" 235 213 3.22      

Unscaled Zero Point Vibrational Energy (zpe) 18831.6 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 17012.5 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 HF/CEP-121G*
ABC
0.53048 0.11507 0.10906

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.801 0.872 1.265
H2 -1.801 0.872 -1.265
H3 -1.143 -0.820 -1.259
H4 -1.143 -0.820 1.259
H5 0.208 1.670 0.000
C6 0.000 0.615 0.000
N7 2.132 -0.872 0.000
C8 1.200 -0.217 0.000
C9 -1.223 0.124 0.750
C10 -1.223 0.124 -0.750

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 C6 N7 C8 C9 C10
H12.53093.10961.81572.50562.21644.48493.43491.07662.2262
H22.53091.81573.10962.50562.21644.48493.43492.22621.0766
H33.10961.81572.51803.10062.22523.50942.72792.22161.0760
H41.81573.10962.51803.10062.22523.50942.72791.07602.2216
H52.50562.50563.10063.10061.07553.18762.13212.23592.2359
C62.21642.21642.22522.22521.07552.59921.46061.51601.5160
N74.48494.48493.50943.50943.18762.59921.13863.57913.5791
C83.43493.43492.72792.72792.13211.46061.13862.55952.5595
C91.07662.22622.22161.07602.23591.51603.57912.55951.5003
C102.22621.07661.07602.22162.23591.51603.57912.55951.5003

picture of Cyclopropanecarbonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C9 H4 115.018 H1 C9 C6 116.476
H1 C9 C10 118.596 H2 C10 H3 115.018
H2 C10 C6 116.476 H2 C10 C9 118.596
H3 C10 C6 117.286 H3 C10 C9 118.223
H4 C9 C6 117.286 H4 C9 C10 118.223
H5 C6 C8 113.551 H5 C6 C9 118.272
H5 C6 C10 118.272 C6 C8 N7 179.640
C6 C9 C10 60.341 C6 C10 C9 60.341
C8 C6 C9 118.595 C8 C6 C10 118.595
C9 C6 C10 59.318
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.202      
2 H 0.202      
3 H 0.215      
4 H 0.215      
5 H 0.251      
6 C -0.027      
7 N -0.088      
8 C -0.139      
9 C -0.416      
10 C -0.416      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.984 2.155 0.000 4.529
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.562 3.427 0.000
y 3.427 -29.167 0.000
z 0.000 0.000 -29.315
Traceless
 xyz
x -8.320 3.427 0.000
y 3.427 4.271 0.000
z 0.000 0.000 4.049
Polar
3z2-r28.099
x2-y2-8.394
xy3.427
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.816 -1.078 0.000
y -1.078 5.781 0.000
z 0.000 0.000 5.515


<r2> (average value of r2) Å2
<r2> 91.751
(<r2>)1/2 9.579