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

using model chemistry: MP2/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-316.599929
Energy at 298.15K 
HF Energy-315.434295
Nuclear repulsion energy211.694383
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/Def2TZVPP
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' 3574 3401 169.04 388.98 0.29 0.45
2 A' 2201 2094 40.87 246.52 0.10 0.18
3 A' 2146 2041 478.33 8.02 0.33 0.50
4 A' 1335 1270 3.43 56.68 0.22 0.36
5 A' 807 768 537.48 17.59 0.48 0.64
6 A' 653 621 1.41 16.88 0.07 0.14
7 A' 583 555 13.39 4.51 0.56 0.72
8 A' 578 550 1.86 0.98 0.47 0.64
9 A' 440 419 36.22 2.31 0.32 0.48
10 A' 171 163 6.24 0.41 0.72 0.83
11 A' 131 125 8.65 7.45 0.73 0.84
12 A" 2206 2099 3.84 166.47 0.75 0.86
13 A" 1227 1167 0.44 10.29 0.75 0.86
14 A" 739 703 81.95 0.87 0.75 0.86
15 A" 624 594 3.07 0.31 0.75 0.86
16 A" 394 375 6.00 3.36 0.75 0.86
17 A" 381 362 0.18 0.25 0.75 0.86
18 A" 129 122 0.01 9.25 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9158.8 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 8714.6 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/Def2TZVPP
ABC
0.09375 0.09322 0.04690

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.010 -0.058 0.000
C2 -0.010 1.280 0.000
N3 0.145 2.476 0.000
C4 -0.010 -0.760 1.240
C5 -0.010 -0.760 -1.240
N6 -0.010 -1.335 2.262
N7 -0.010 -1.335 -2.262
H8 -0.623 3.138 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33832.53911.42481.42482.59742.59743.2548
C21.33831.20612.38712.38713.45753.45751.9567
N32.53911.20613.46873.46874.43444.43441.0145
C41.42482.38713.46872.48041.17263.54914.1361
C51.42482.38713.46872.48043.54911.17264.1361
N62.59743.45754.43441.17263.54914.52395.0499
N72.59743.45754.43443.54911.17264.52395.0499
H83.25481.95671.01454.13614.13615.04995.0499

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 172.578 C1 C4 N6 179.898
C1 C5 N7 179.898 C2 C1 C4 119.487
C2 C1 C5 119.487 C2 N3 H8 123.333
C4 C1 C5 121.027
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability