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All results from a given calculation for H2CNCN (cyanamide, methylene)

using model chemistry: MP2/aug-cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at MP2/aug-cc-pVQZ
 hartrees
Energy at 0K-186.569320
Energy at 298.15K 
HF Energy-185.825221
Nuclear repulsion energy92.155538
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/aug-cc-pVQZ
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' 3254 3090 1.89 73.01 0.58 0.74
2 A' 3122 2965 12.38 102.29 0.08 0.15
3 A' 2176 2067 12.56 165.93 0.21 0.35
4 A' 1671 1587 12.56 33.12 0.16 0.27
5 A' 1504 1429 14.82 23.17 0.34 0.51
6 A' 1235 1173 9.47 2.00 0.71 0.83
7 A' 945 898 6.70 2.14 0.04 0.08
8 A' 619 588 2.98 2.63 0.11 0.19
9 A' 247 234 6.31 6.47 0.46 0.63
10 A" 1095 1040 19.53 0.45 0.75 0.86
11 A" 778 739 0.56 1.39 0.75 0.86
12 A" 360 342 8.43 0.10 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8503.2 cm-1
Scaled (by 0.9497) Zero Point Vibrational Energy (zpe) 8075.5 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/aug-cc-pVQZ
ABC
2.10978 0.18139 0.16703

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.087 -1.545 0.000
N2 -0.634 -0.487 0.000
C3 0.000 0.702 0.000
N4 0.452 1.784 0.000
H5 -0.424 -2.498 0.000
H6 1.174 -1.525 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.27972.24873.34891.08151.0868
N21.27971.34782.51762.02162.0841
C32.24871.34781.17263.22822.5176
N43.34892.51761.17264.37083.3870
H51.08152.02163.22824.37081.8705
H61.08682.08412.51763.38701.8705

picture of cyanamide, methylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 117.679 N2 C1 H5 117.531
N2 C1 H6 123.237 N2 C3 N4 174.627
H5 C1 H6 119.232
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability