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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: MP2=FULL/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2=FULL/STO-3G
 hartrees
Energy at 0K-257.551892
Energy at 298.15K 
HF Energy-257.213762
Nuclear repulsion energy156.706727
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/STO-3G
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 3582 3184 23.76 48.08 0.12 0.22
2 A1 1424 1266 33.63 8.61 0.73 0.85
3 A1 1235 1098 15.93 6.45 0.24 0.38
4 A1 1131 1006 1.52 9.49 0.32 0.48
5 A1 1069 950 0.02 7.72 0.25 0.40
6 A1 928 825 0.48 1.68 0.19 0.32
7 A2 910 808 0.00 1.00 0.75 0.86
8 A2 647 575 0.00 0.88 0.75 0.86
9 B1 852 757 14.49 1.43 0.75 0.86
10 B1 608 541 1.14 0.06 0.75 0.86
11 B2 3564 3168 16.52 33.09 0.75 0.86
12 B2 1488 1323 10.50 1.08 0.75 0.86
13 B2 1228 1091 3.27 0.01 0.75 0.86
14 B2 1086 965 0.05 0.01 0.75 0.86
15 B2 961 854 6.77 4.53 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10356.1 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 9205.6 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/STO-3G
ABC
0.31862 0.30166 0.15495

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.173
N2 0.000 1.190 0.379
N3 0.000 -1.190 0.379
C4 0.000 0.713 -0.929
C5 0.000 -0.713 -0.929
H6 0.000 1.411 -1.775
H7 0.000 -1.411 -1.775

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.43081.43082.21942.21943.26853.2685
N21.43082.38041.39212.30902.16523.3775
N31.43082.38042.30901.39213.37752.1652
C42.21941.39212.30901.42571.09732.2866
C52.21942.30901.39211.42572.28661.0973
H63.26852.16523.37751.09732.28662.8230
H73.26853.37752.16522.28661.09732.8230

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 103.659 O1 N3 C5 103.659
N2 O1 N3 112.576 N2 C4 C5 110.053
N2 C4 H6 120.401 N3 C5 C4 110.053
N3 C5 H7 120.401 C4 C5 H7 129.546
C5 C4 H6 129.546
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability