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

using model chemistry: MP2/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at MP2/Def2TZVPP
 hartrees
Energy at 0K-186.510508
Energy at 298.15K 
HF Energy-185.818479
Nuclear repulsion energy92.025469
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/Def2TZVPP
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' 3256 3098 2.78 74.40 0.58 0.73
2 A' 3126 2975 12.38 97.51 0.11 0.20
3 A' 2177 2071 9.14 138.81 0.25 0.40
4 A' 1672 1591 11.38 26.02 0.17 0.29
5 A' 1511 1438 13.67 25.22 0.36 0.53
6 A' 1237 1177 9.00 2.62 0.75 0.86
7 A' 944 899 6.41 1.55 0.03 0.05
8 A' 621 590 2.80 1.85 0.18 0.30
9 A' 249 237 5.86 7.12 0.53 0.69
10 A" 1096 1043 19.47 0.22 0.75 0.86
11 A" 780 743 0.57 2.76 0.75 0.86
12 A" 364 347 8.24 0.18 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8516.9 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 8103.8 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/Def2TZVPP
ABC
2.09755 0.18098 0.16661

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.088 -1.546 0.000
N2 -0.636 -0.488 0.000
C3 0.000 0.703 0.000
N4 0.453 1.786 0.000
H5 -0.422 -2.501 0.000
H6 1.175 -1.527 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.28152.25053.35241.08201.0872
N21.28151.35032.52212.02362.0872
C32.25051.35031.17463.23102.5199
N43.35242.52211.17464.37543.3906
H51.08202.02363.23104.37541.8701
H61.08722.08722.51993.39061.8701

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 117.519 N2 C1 H5 117.536
N2 C1 H6 123.357 N2 C3 N4 174.595
H5 C1 H6 119.107
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability