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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: MP4=FULL/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP4=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-261.469010
Energy at 298.15K 
HF Energy-260.573609
Nuclear repulsion energy160.973172
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 MP4=FULL/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3286 3205        
2 A1 1419 1384        
3 A1 1293 1261        
4 A1 1052 1026        
5 A1 983 958        
6 A1 848 827        
7 A2 827 807        
8 A2 624 608        
9 B1 824 803        
10 B1 628 612        
11 B2 3270 3189        
12 B2 1506 1468        
13 B2 1158 1130        
14 B2 936 913        
15 B2 795 776        

Unscaled Zero Point Vibrational Energy (zpe) 9724.2 cm-1
Scaled (by 0.9752) Zero Point Vibrational Energy (zpe) 9483.1 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 MP4=FULL/aug-cc-pVDZ
ABC
0.33991 0.31455 0.16337

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.143
N2 0.000 1.153 0.360
N3 0.000 -1.153 0.360
C4 0.000 0.715 -0.895
C5 0.000 -0.715 -0.895
H6 0.000 1.418 -1.727
H7 0.000 -1.418 -1.727

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.39381.39382.15972.15973.20153.2015
N21.39382.30671.32932.25112.10443.3122
N31.39382.30672.25111.32933.31222.1044
C42.15971.32932.25111.43091.08952.2902
C52.15972.25111.32931.43092.29021.0895
H63.20152.10443.31221.08952.29022.8362
H73.20153.31222.10442.29021.08952.8362

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 104.925 O1 N3 C5 104.925
N2 O1 N3 111.680 N2 C4 C5 109.235
N2 C4 H6 120.600 N3 C5 C4 109.235
N3 C5 H7 120.600 C4 C5 H7 130.165
C5 C4 H6 130.165
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability