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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: MP2/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 MP2/aug-cc-pVDZ
 hartrees
Energy at 0K-261.398788
Energy at 298.15K 
HF Energy-260.574802
Nuclear repulsion energy161.898717
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/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 3323 3186 1.35 108.75 0.08 0.14
2 A1 1422 1364 27.86 6.48 0.73 0.85
3 A1 1269 1217 1.90 29.03 0.03 0.05
4 A1 1078 1034 0.75 6.63 0.28 0.44
5 A1 1021 979 15.51 10.13 0.09 0.17
6 A1 897 860 11.81 5.35 0.08 0.16
7 A2 853 818 0.00 0.05 0.75 0.86
8 A2 638 611 0.00 0.37 0.75 0.86
9 B1 835 801 43.78 0.03 0.75 0.86
10 B1 655 629 1.64 0.07 0.75 0.86
11 B2 3306 3171 1.20 52.89 0.75 0.86
12 B2 1477 1416 0.19 0.80 0.75 0.86
13 B2 1163 1115 5.60 0.00 0.75 0.86
14 B2 958 919 14.15 1.96 0.75 0.86
15 B2 906 869 0.56 0.74 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9900.3 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 9494.4 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/aug-cc-pVDZ
ABC
0.34106 0.32080 0.16531

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.132
N2 0.000 1.142 0.368
N3 0.000 -1.142 0.368
C4 0.000 0.707 -0.897
C5 0.000 -0.707 -0.897
H6 0.000 1.418 -1.719
H7 0.000 -1.418 -1.719

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.37431.37432.14942.14943.18503.1850
N21.37432.28381.33802.23992.10543.3028
N31.37432.28382.23991.33803.30282.1054
C42.14941.33802.23991.41301.08702.2778
C52.14942.23991.33801.41302.27781.0870
H63.18502.10543.30281.08702.27782.8356
H73.18503.30282.10542.27781.08702.8356

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 104.822 O1 N3 C5 104.822
N2 O1 N3 112.378 N2 C4 C5 108.989
N2 C4 H6 120.143 N3 C5 C4 108.989
N3 C5 H7 120.143 C4 C5 H7 130.869
C5 C4 H6 130.869
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability