return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C3H3N (acrylonitrile)

using model chemistry: B3LYP/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/TZVP
 hartrees
Energy at 0K-170.894662
Energy at 298.15K-170.897061
HF Energy-170.894662
Nuclear repulsion energy90.334995
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 B3LYP/TZVP
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' 3251 3138 1.52      
2 A' 3174 3064 0.81      
3 A' 3159 3050 0.50      
4 A' 2343 2262 8.94      
5 A' 1679 1621 1.23      
6 A' 1452 1402 7.34      
7 A' 1326 1281 0.27      
8 A' 1115 1077 3.28      
9 A' 884 853 1.37      
10 A' 585 565 0.00      
11 A' 240 232 2.61      
12 A" 1010 975 7.51      
13 A" 995 960 56.51      
14 A" 716 691 12.13      
15 A" 352 339 0.16      

Unscaled Zero Point Vibrational Energy (zpe) 11140.2 cm-1
Scaled (by 0.9654) Zero Point Vibrational Energy (zpe) 10754.7 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 B3LYP/TZVP
ABC
1.70970 0.16579 0.15113

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.578 -0.535 0.000
N2 -1.065 -1.581 0.000
C3 0.000 0.769 0.000
H4 -0.704 1.594 0.000
C5 1.315 0.985 0.000
H6 2.027 0.170 0.000
H7 1.707 1.993 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 H7
C11.15391.42652.13252.42712.69883.4075
N21.15392.58033.19513.49943.55384.5230
C31.42652.58031.08431.33232.11412.1004
H42.13253.19511.08432.10903.08042.4443
C52.42713.49941.33232.10901.08231.0819
H62.69883.55382.11413.08041.08231.8507
H73.40754.52302.10042.44431.08191.8507

picture of acrylonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 115.604 C1 C3 C5 123.189
N2 C1 C3 178.904 C3 C5 H6 121.880
C3 C5 H7 120.563 H4 C3 C5 121.207
H6 C5 H7 117.557
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability