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All results from a given calculation for NH2CN (cyanamide)

using model chemistry: QCISD/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes C2V 1A1

Conformer 1 (Cs)

Jump to S1C2
Vibrational Frequencies calculated at QCISD/3-21G
Rotational Constants (cm-1) from geometry optimized at QCISD/3-21G
See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/3-21G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at QCISD/3-21G
 hartrees
Energy at 0K-147.399641
Energy at 298.15K-147.401506
HF Energy-147.080682
Nuclear repulsion energy58.662971
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 QCISD/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3577 3467 55.33      
2 A1 2266 2197 58.39      
3 A1 1719 1666 65.82      
4 A1 1076 1043 12.87      
5 B1 481 466 9.07      
6 B1 183 177 459.05      
7 B2 3690 3577 61.15      
8 B2 1199 1162 4.21      
9 B2 429 416 0.50      

Unscaled Zero Point Vibrational Energy (zpe) 7309.9 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 7084.7 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 QCISD/3-21G
ABC
11.01691 0.33058 0.32095

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.222
N2 0.000 0.000 1.402
N3 0.000 0.000 -1.125
H4 0.000 0.871 -1.637
H5 0.000 -0.871 -1.637

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.18041.34672.05312.0531
N21.18042.52713.16183.1618
N31.34672.52711.01071.0107
H42.05313.16181.01071.7426
H52.05313.16181.01071.7426

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.455 C1 N3 H5 120.455
N2 C1 N3 180.000 H4 N3 H5 119.090
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability