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

using model chemistry: MP2=FULL/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-316.531815
Energy at 298.15K 
HF Energy-315.347566
Nuclear repulsion energy212.405427
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/6-31G(2df,p)
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' 3628 3410 183.17 370.98 0.31 0.47
2 A' 2242 2108 58.40 202.87 0.11 0.19
3 A' 2195 2063 429.57 3.29 0.58 0.74
4 A' 1347 1266 1.32 52.55 0.24 0.39
5 A' 779 733 494.97 13.86 0.58 0.73
6 A' 690 649 71.95 4.34 0.53 0.69
7 A' 660 621 0.74 13.84 0.09 0.17
8 A' 588 553 0.21 0.28 0.53 0.69
9 A' 484 455 58.27 2.45 0.39 0.56
10 A' 184 173 6.78 0.50 0.73 0.84
11 A' 138 130 8.81 7.07 0.73 0.84
12 A" 2247 2112 3.99 144.84 0.75 0.86
13 A" 1239 1165 0.17 8.09 0.75 0.86
14 A" 753 708 84.27 1.02 0.75 0.86
15 A" 634 596 3.09 0.36 0.75 0.86
16 A" 467 439 7.58 3.47 0.75 0.86
17 A" 420 395 0.78 0.11 0.75 0.86
18 A" 134 126 0.01 9.04 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9414.9 cm-1
Scaled (by 0.9399) Zero Point Vibrational Energy (zpe) 8849.1 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/6-31G(2df,p)
ABC
0.09449 0.09380 0.04723

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.005 -0.060 0.000
C2 -0.005 1.273 0.000
N3 0.119 2.468 0.000
C4 -0.005 -0.756 1.235
C5 -0.005 -0.756 -1.235
N6 -0.005 -1.329 2.256
N7 -0.005 -1.329 -2.256
H8 -0.645 3.133 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33312.53101.41731.41732.58872.58873.2564
C21.33311.20132.37532.37533.44423.44421.9669
N32.53101.20133.45463.45464.41874.41871.0131
C41.41732.37533.45462.46911.17143.53744.1302
C51.41732.37533.45462.46913.53741.17144.1302
N62.58873.44424.41871.17143.53744.51225.0410
N72.58873.44424.41873.53741.17144.51225.0410
H83.25641.96691.01314.13024.13025.04105.0410

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 174.067 C1 C4 N6 179.877
C1 C5 N7 179.877 C2 C1 C4 119.419
C2 C1 C5 119.419 C2 N3 H8 125.088
C4 C1 C5 121.161
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability