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All results from a given calculation for NH2CH2CN (Aminoacetonitrile)

using model chemistry: HF/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 HF/3-21G
 hartrees
Energy at 0K-185.900170
Energy at 298.15K-185.905248
HF Energy-185.900170
Nuclear repulsion energy103.581542
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/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' 3692 3344 3.92      
2 A' 3248 2942 9.84      
3 A' 2579 2335 0.43      
4 A' 1845 1671 26.46      
5 A' 1642 1487 10.43      
6 A' 1506 1364 0.97      
7 A' 1145 1037 22.49      
8 A' 939 850 76.71      
9 A' 739 669 257.98      
10 A' 659 596 39.83      
11 A' 262 238 13.42      
12 A" 3797 3438 10.84      
13 A" 3289 2978 4.39      
14 A" 1506 1364 0.05      
15 A" 1332 1207 0.43      
16 A" 973 881 0.19      
17 A" 485 439 6.43      
18 A" 317 287 68.70      

Unscaled Zero Point Vibrational Energy (zpe) 14977.6 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 13563.7 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/3-21G
ABC
1.01477 0.15944 0.14472

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.456 0.684 0.000
C2 0.000 0.821 0.000
C3 0.731 -0.461 0.000
N4 1.266 -1.467 0.000
H5 -1.829 0.270 0.833
H6 -1.829 0.270 -0.833
H7 0.298 1.387 0.872
H8 0.298 1.387 -0.872

Atom - Atom Distances (Å)
  N1 C2 C3 N4 H5 H6 H7 H8
N11.46212.46883.46961.00281.00282.08052.0805
C21.46211.47622.61552.08452.08451.08121.0812
C32.46881.47621.13952.79032.79032.08912.0891
N43.46962.61551.13953.64623.64623.13783.1378
H51.00282.08452.79033.64621.66602.40312.9462
H61.00282.08452.79033.64621.66602.94622.4031
H72.08051.08122.08913.13782.40312.94621.7437
H82.08051.08122.08913.13782.94622.40311.7437

picture of Aminoacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 114.324 N1 C2 H7 108.854
N1 C2 H8 108.854 C2 N1 H5 114.196
C2 N1 H6 114.196 C2 C3 N4 178.305
C3 C2 H7 108.559 C3 C2 H8 108.559
H5 N1 H6 112.344 H7 C2 H8 107.481
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.769      
2 C -0.229      
3 C 0.308      
4 N -0.508      
5 H 0.319      
6 H 0.319      
7 H 0.280      
8 H 0.280      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.615 1.979 0.000 2.555
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.178 7.222 0.000
y 7.222 -29.996 0.000
z 0.000 0.000 -21.479
Traceless
 xyz
x -0.440 7.222 0.000
y 7.222 -6.167 0.000
z 0.000 0.000 6.608
Polar
3z2-r213.215
x2-y23.818
xy7.222
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.878 -0.749 0.000
y -0.749 4.094 0.000
z 0.000 0.000 3.062


<r2> (average value of r2) Å2
<r2> 82.877
(<r2>)1/2 9.104