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

using model chemistry: MP2/aug-cc-pVTZ

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-pVTZ
 hartrees
Energy at 0K-186.519022
Energy at 298.15K 
HF Energy-185.813599
Nuclear repulsion energy91.964541
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-pVTZ
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' 3248 3095 2.09 73.90 0.58 0.74
2 A' 3118 2971 12.42 102.66 0.08 0.15
3 A' 2167 2065 11.61 166.57 0.21 0.35
4 A' 1665 1587 11.52 32.64 0.15 0.27
5 A' 1502 1431 14.41 24.06 0.33 0.50
6 A' 1230 1172 9.34 1.97 0.72 0.84
7 A' 941 897 6.52 2.20 0.04 0.07
8 A' 616 587 2.79 2.59 0.11 0.19
9 A' 246 235 6.22 6.56 0.46 0.63
10 A" 1091 1040 19.87 0.46 0.75 0.86
11 A" 777 740 0.50 1.41 0.75 0.86
12 A" 357 341 8.19 0.10 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8479.7 cm-1
Scaled (by 0.9529) Zero Point Vibrational Energy (zpe) 8080.3 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-pVTZ
ABC
2.09854 0.18069 0.16636

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.088 -1.548 0.000
N2 -0.635 -0.489 0.000
C3 0.000 0.703 0.000
N4 0.452 1.788 0.000
H5 -0.422 -2.502 0.000
H6 1.176 -1.528 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.28262.25233.35551.08271.0880
N21.28261.35062.52322.02492.0886
C32.25231.35061.17553.23302.5222
N43.35552.52321.17554.37863.3945
H51.08272.02493.23304.37861.8717
H61.08802.08862.52223.39451.8717

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 117.577 N2 C1 H5 117.514
N2 C1 H6 123.335 N2 C3 N4 174.543
H5 C1 H6 119.151
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability