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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: MP2/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-311+G(3df,2p)
 hartrees
Energy at 0K-261.593002
Energy at 298.15K 
HF Energy-260.630086
Nuclear repulsion energy163.753380
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 MP2/6-311+G(3df,2p)
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 3318 3130 1.95 101.59 0.08 0.15
2 A1 1426 1345 25.62 6.60 0.74 0.85
3 A1 1290 1217 1.22 26.99 0.03 0.05
4 A1 1088 1026 0.13 7.20 0.20 0.33
5 A1 1052 992 19.16 10.20 0.11 0.20
6 A1 922 870 10.40 3.66 0.09 0.16
7 A2 905 854 0.00 0.03 0.75 0.86
8 A2 655 618 0.00 0.30 0.75 0.86
9 B1 854 806 41.33 0.04 0.75 0.86
10 B1 672 634 1.74 0.08 0.75 0.86
11 B2 3303 3116 1.81 50.18 0.75 0.86
12 B2 1499 1414 0.12 0.63 0.75 0.86
13 B2 1189 1122 5.21 0.01 0.75 0.86
14 B2 974 919 11.21 0.69 0.75 0.86
15 B2 950 896 4.56 1.91 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10048.2 cm-1
Scaled (by 0.9434) Zero Point Vibrational Energy (zpe) 9479.5 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 MP2/6-311+G(3df,2p)
ABC
0.34830 0.32868 0.16910

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.121
N2 0.000 1.127 0.364
N3 0.000 -1.127 0.364
C4 0.000 0.700 -0.888
C5 0.000 -0.700 -0.888
H6 0.000 1.406 -1.700
H7 0.000 -1.406 -1.700

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.35701.35702.12732.12733.15183.1518
N21.35702.25321.32302.21472.08333.2671
N31.35702.25322.21471.32303.26712.0833
C42.12731.32302.21471.40011.07582.2568
C52.12732.21471.32301.40012.25681.0758
H63.15182.08333.26711.07582.25682.8111
H73.15183.26712.08332.25681.07582.8111

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.073 O1 N3 C5 105.073
N2 O1 N3 112.237 N2 C4 C5 108.809
N2 C4 H6 120.211 N3 C5 C4 108.809
N3 C5 H7 120.211 C4 C5 H7 130.980
C5 C4 H6 130.980
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability