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All results from a given calculation for HN=C=C(CN)2 (Dicyanoketenimine)

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 CS 1A'
Energy calculated at MP2=FULL/STO-3G
 hartrees
Energy at 0K-311.790989
Energy at 298.15K 
HF Energy-311.243327
Nuclear repulsion energy203.990798
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 A' 3566 3170 9.45 268.83 0.33 0.49
2 A' 2163 1923 28.52 120.66 0.18 0.31
3 A' 2083 1852 89.58 10.46 0.42 0.59
4 A' 1319 1172 1.90 23.18 0.31 0.47
5 A' 1036 921 324.40 66.48 0.50 0.66
6 A' 637 566 2.64 3.08 0.06 0.12
7 A' 583 518 0.18 1.15 0.22 0.37
8 A' 570 507 4.95 4.82 0.71 0.83
9 A' 391 347 19.54 2.96 0.39 0.56
10 A' 167 148 5.48 0.66 0.72 0.84
11 A' 131 116 4.57 4.06 0.73 0.84
12 A" 2125 1889 47.27 42.79 0.75 0.86
13 A" 1184 1052 0.00 2.38 0.75 0.86
14 A" 814 723 60.72 5.65 0.75 0.86
15 A" 613 545 0.08 0.03 0.75 0.86
16 A" 376 334 0.85 0.14 0.75 0.86
17 A" 357 317 3.68 2.87 0.75 0.86
18 A" 128 114 0.14 6.04 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9120.5 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 8107.2 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
0.08758 0.08664 0.04377

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.027 -0.027 0.000
C2 -0.027 1.325 0.000
N3 0.238 2.571 0.000
C4 -0.027 -0.779 1.273
C5 -0.027 -0.779 -1.273
N6 -0.027 -1.401 2.335
N7 -0.027 -1.401 -2.335
H8 -0.640 3.186 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.35162.61141.47841.47842.70922.70923.2712
C21.35161.27422.45892.45893.58923.58921.9599
N32.61141.27423.59353.59354.61524.61521.0725
C41.47842.45893.59352.54551.23083.66074.2096
C51.47842.45893.59352.54553.66071.23084.2096
N62.70923.58924.61521.23083.66074.66935.1839
N72.70923.58924.61523.66071.23084.66935.1839
H83.27121.95991.07254.20964.20965.18395.1839

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 167.972 C1 C4 N6 179.781
C1 C5 N7 179.781 C2 C1 C4 120.586
C2 C1 C5 120.586 C2 N3 H8 112.986
C4 C1 C5 118.829
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability