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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: CISD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CISD/6-311G*
 hartrees
Energy at 0K-261.287244
Energy at 298.15K 
HF Energy-260.603505
Nuclear repulsion energy165.670083
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 CISD/6-311G*
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 3399 3145 0.15      
2 A1 1566 1449 12.75      
3 A1 1428 1321 5.33      
4 A1 1125 1041 35.76      
5 A1 1098 1016 1.12      
6 A1 978 905 27.65      
7 A2 942 872 0.00      
8 A2 685 633 0.00      
9 B1 911 843 41.40      
10 B1 682 631 0.92      
11 B2 3384 3132 0.01      
12 B2 1704 1577 0.09      
13 B2 1275 1179 4.20      
14 B2 1071 991 1.47      
15 B2 1017 941 22.98      

Unscaled Zero Point Vibrational Energy (zpe) 10631.8 cm-1
Scaled (by 0.9253) Zero Point Vibrational Energy (zpe) 9837.6 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 CISD/6-311G*
ABC
0.35930 0.33299 0.17282

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.107
N2 0.000 1.109 0.355
N3 0.000 -1.109 0.355
C4 0.000 0.711 -0.871
C5 0.000 -0.711 -0.871
H6 0.000 1.411 -1.686
H7 0.000 -1.411 -1.686

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.33971.33972.10212.10213.12823.1282
N21.33972.21871.28982.19562.06313.2428
N31.33972.21872.19561.28983.24282.0631
C42.10211.28982.19561.42291.07312.2729
C52.10212.19561.28981.42292.27291.0731
H63.12822.06313.24281.07312.27292.8212
H73.12823.24282.06312.27291.07312.8212

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 106.133 O1 N3 C5 106.133
N2 O1 N3 111.796 N2 C4 C5 107.968
N2 C4 H6 121.375 N3 C5 C4 107.968
N3 C5 H7 121.375 C4 C5 H7 130.657
C5 C4 H6 130.657
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability