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

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

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-316.751156
Energy at 298.15K 
HF Energy-315.421073
Nuclear repulsion energy212.276250
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/6-311+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 A' 3595 3389 184.90 374.88 0.28 0.44
2 A' 2212 2085 56.75 285.67 0.09 0.16
3 A' 2162 2038 500.56 3.65 0.49 0.66
4 A' 1342 1265 2.98 57.96 0.21 0.34
5 A' 787 742 542.39 19.33 0.35 0.52
6 A' 656 618 2.34 19.67 0.06 0.12
7 A' 582 548 15.34 3.73 0.51 0.68
8 A' 578 545 2.10 1.40 0.46 0.63
9 A' 446 421 37.84 2.40 0.26 0.42
10 A' 169 159 6.24 0.47 0.71 0.83
11 A' 132 125 9.10 6.89 0.72 0.84
12 A" 2218 2090 6.69 180.22 0.75 0.86
13 A" 1235 1164 0.32 11.40 0.75 0.86
14 A" 741 699 80.35 0.75 0.75 0.86
15 A" 625 589 3.49 0.26 0.75 0.86
16 A" 400 377 5.97 2.29 0.75 0.86
17 A" 385 363 0.36 0.14 0.75 0.86
18 A" 130 122 0.00 8.62 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9196.5 cm-1
Scaled (by 0.9427) Zero Point Vibrational Energy (zpe) 8669.6 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=FULL/6-311+G(3df,2p)
ABC
0.09422 0.09381 0.04716

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.010 -0.059 0.000
C2 -0.010 1.276 0.000
N3 0.142 2.469 0.000
C4 -0.010 -0.757 1.236
C5 -0.010 -0.757 -1.236
N6 -0.010 -1.332 2.255
N7 -0.010 -1.332 -2.255
H8 -0.613 3.146 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33512.53221.41981.41982.58972.58973.2613
C21.33511.20212.37982.37983.44803.44801.9647
N32.53221.20213.45823.45824.42204.42201.0139
C41.41982.37983.45822.47201.16993.53814.1387
C51.41982.37983.45822.47203.53811.16994.1387
N62.58973.44804.42201.16993.53814.51035.0500
N72.58973.44804.42203.53811.16994.51035.0500
H83.26131.96471.01394.13874.13875.05005.0500

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 172.761 C1 C4 N6 179.942
C1 C5 N7 179.942 C2 C1 C4 119.473
C2 C1 C5 119.473 C2 N3 H8 124.680
C4 C1 C5 121.055
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability