return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: mPW1PW91/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/cc-pVDZ
 hartrees
Energy at 0K-317.118959
Energy at 298.15K 
HF Energy-317.118959
Nuclear repulsion energy212.056416
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 mPW1PW91/cc-pVDZ
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' 3540 3393 122.41 438.07 0.31 0.47
2 A' 2383 2284 10.78 202.81 0.11 0.20
3 A' 2192 2101 553.05 7.23 0.33 0.50
4 A' 1361 1304 4.76 39.84 0.22 0.36
5 A' 866 829 412.88 8.46 0.72 0.84
6 A' 668 640 2.74 14.15 0.10 0.18
7 A' 616 590 14.10 5.65 0.69 0.81
8 A' 593 568 0.52 0.23 0.36 0.53
9 A' 444 425 32.44 1.34 0.37 0.54
10 A' 175 167 5.90 0.30 0.71 0.83
11 A' 136 130 7.74 8.31 0.73 0.84
12 A" 2375 2276 27.32 163.72 0.75 0.86
13 A" 1253 1200 2.01 6.90 0.75 0.86
14 A" 734 703 80.91 1.44 0.75 0.86
15 A" 633 606 3.33 0.78 0.75 0.86
16 A" 424 406 8.17 4.63 0.75 0.86
17 A" 395 378 0.33 0.23 0.75 0.86
18 A" 132 127 0.00 9.73 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9458.4 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 9064.0 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 mPW1PW91/cc-pVDZ
ABC
0.09384 0.09357 0.04702

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.006 -0.060 0.000
C2 -0.006 1.282 0.000
N3 0.129 2.479 0.000
C4 -0.006 -0.762 1.243
C5 -0.006 -0.762 -1.243
N6 -0.006 -1.331 2.255
N7 -0.006 -1.331 -2.255
H8 -0.683 3.100 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.34252.54271.42711.42712.58862.58863.2323
C21.34251.20422.39222.39223.45183.45181.9401
N32.54271.20423.47343.47344.42944.42941.0229
C41.42712.39223.47342.48561.16143.54404.1133
C51.42712.39223.47342.48563.54401.16144.1133
N62.58863.45184.42941.16143.54404.51035.0181
N72.58863.45184.42943.54401.16144.51035.0181
H83.23231.94011.02294.11334.11335.01815.0181

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.563 C1 C4 N6 179.906
C1 C5 N7 179.906 C2 C1 C4 119.444
C2 C1 C5 119.444 C2 N3 H8 120.969
C4 C1 C5 121.113
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.096      
2 C 0.232      
3 N -0.135      
4 C 0.028      
5 C 0.028      
6 N -0.115      
7 N -0.115      
8 H 0.174      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.364 5.174 0.000 5.350
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.516 -4.544 0.000
y -4.544 -34.046 0.000
z 0.000 0.000 -51.143
Traceless
 xyz
x 5.079 -4.544 0.000
y -4.544 10.283 0.000
z 0.000 0.000 -15.362
Polar
3z2-r2-30.723
x2-y2-3.470
xy-4.544
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.782 -0.082 0.000
y -0.082 11.696 0.000
z 0.000 0.000 8.950


<r2> (average value of r2) Å2
<r2> 210.145
(<r2>)1/2 14.496