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

using model chemistry: MP2/aug-cc-pVDZ

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-pVDZ
 hartrees
Energy at 0K-186.365726
Energy at 298.15K 
HF Energy-185.768362
Nuclear repulsion energy91.024256
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-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' 3262 3128 3.01 77.29 0.58 0.73
2 A' 3122 2994 13.66 104.73 0.09 0.16
3 A' 2139 2052 8.45 164.60 0.22 0.37
4 A' 1654 1586 9.33 31.73 0.15 0.26
5 A' 1493 1432 12.30 24.70 0.33 0.50
6 A' 1220 1170 8.87 1.92 0.74 0.85
7 A' 930 892 5.79 2.29 0.02 0.05
8 A' 608 583 1.98 2.54 0.11 0.19
9 A' 243 233 5.99 6.81 0.48 0.65
10 A" 1082 1038 20.86 0.44 0.75 0.86
11 A" 767 736 0.33 1.59 0.75 0.86
12 A" 346 332 7.35 0.10 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8433.6 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 8087.8 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-pVDZ
ABC
2.04924 0.17727 0.16316

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.095 -1.561 0.000
N2 -0.643 -0.496 0.000
C3 0.000 0.706 0.000
N4 0.451 1.809 0.000
H5 -0.419 -2.527 0.000
H6 1.194 -1.536 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.29512.26883.38821.09391.0994
N21.29511.36322.55102.04282.1109
C32.26881.36321.19123.25972.5407
N43.38822.55101.19124.42173.4269
H51.09392.04283.25974.42171.8923
H61.09942.11092.54073.42691.8923

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 117.158 N2 C1 H5 117.292
N2 C1 H6 123.455 N2 C3 N4 174.096
H5 C1 H6 119.253
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability