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All results from a given calculation for NH2CH2CN (Aminoacetonitrile)

using model chemistry: CISD/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 CISD/3-21G*
 hartrees
Energy at 0K-186.266552
Energy at 298.15K-186.271515
HF Energy-185.898190
Nuclear repulsion energy102.400007
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 CISD/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' 3521 3290 0.43      
2 A' 3145 2938 9.27      
3 A' 2398 2240 0.67      
4 A' 1787 1669 22.06      
5 A' 1581 1477 9.05      
6 A' 1435 1341 0.76      
7 A' 1114 1041 25.40      
8 A' 903 843 74.25      
9 A' 779 728 193.77      
10 A' 613 573 18.02      
11 A' 240 224 11.91      
12 A" 3619 3381 1.95      
13 A" 3184 2975 4.48      
14 A" 1446 1352 0.21      
15 A" 1280 1196 0.06      
16 A" 930 869 0.01      
17 A" 453 423 11.99      
18 A" 310 290 66.06      

Unscaled Zero Point Vibrational Energy (zpe) 14367.4 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 13424.9 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 CISD/3-21G*
ABC
0.99013 0.15617 0.14163

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.474 0.700 0.000
C2 0.000 0.832 0.000
C3 0.739 -0.459 0.000
N4 1.276 -1.488 0.000
H5 -1.817 0.233 0.835
H6 -1.817 0.233 -0.835
H7 0.296 1.405 0.881
H8 0.296 1.405 -0.881

Atom - Atom Distances (Å)
  N1 C2 C3 N4 H5 H6 H7 H8
N11.48042.49813.51391.01641.01642.09942.0994
C21.48041.48722.64742.08752.08751.09151.0915
C32.49811.48721.16072.77612.77612.10832.1083
N43.51392.64741.16073.63603.63603.17863.1786
H51.01642.08752.77613.63601.67092.41652.9635
H61.01642.08752.77613.63601.67092.96352.4165
H72.09941.09152.10833.17862.41652.96351.7611
H82.09941.09152.10833.17862.96352.41651.7611

picture of Aminoacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 114.656 N1 C2 H7 108.485
N1 C2 H8 108.485 C2 N1 H5 112.114
C2 N1 H6 112.114 C2 C3 N4 177.757
C3 C2 H7 108.717 C3 C2 H8 108.717
H5 N1 H6 110.569 H7 C2 H8 107.561
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability