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All results from a given calculation for C3H3N (acrylonitrile)

using model chemistry: MP2=FULL/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=FULL/3-21G
 hartrees
Energy at 0K-169.207585
Energy at 298.15K-169.210070
HF Energy-168.813066
Nuclear repulsion energy89.046034
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=FULL/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' 3283 3134 4.05      
2 A' 3212 3067 0.96      
3 A' 3189 3045 0.59      
4 A' 2138 2042 6.62      
5 A' 1666 1591 4.12      
6 A' 1519 1450 2.21      
7 A' 1381 1318 0.06      
8 A' 1162 1110 3.65      
9 A' 863 824 0.65      
10 A' 612 584 0.11      
11 A' 261 249 1.49      
12 A" 1033 987 30.06      
13 A" 986 942 42.29      
14 A" 750 716 8.65      
15 A" 379 362 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 11217.7 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 10710.6 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=FULL/3-21G
ABC
1.65289 0.16139 0.14704

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.590 -0.528 0.000
N2 -1.073 -1.615 0.000
C3 0.000 0.785 0.000
H4 -0.693 1.622 0.000
C5 1.329 0.995 0.000
H6 2.042 0.176 0.000
H7 1.731 2.002 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 H7
C11.18941.43962.15232.45062.72453.4341
N21.18942.62903.25913.54763.59304.5773
C31.43962.62901.08651.34592.13042.1165
H42.15233.25911.08652.11713.09312.4538
C52.45063.54761.34592.11711.08541.0846
H62.72453.59302.13043.09311.08541.8526
H73.43414.57732.11652.45381.08461.8526

picture of acrylonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 116.169 C1 C3 C5 123.193
N2 C1 C3 179.744 C3 C5 H6 122.024
C3 C5 H7 120.732 H4 C3 C5 120.638
H6 C5 H7 117.244
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability