return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for NH2CN (cyanamide)

using model chemistry: CCSD=FULL/aug-cc-pVDZ

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 CCSD=FULL/aug-cc-pVDZ
Rotational Constants (cm-1) from geometry optimized at CCSD=FULL/aug-cc-pVDZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/aug-cc-pVDZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at CCSD=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-148.421461
Energy at 298.15K 
HF Energy-147.931178
Nuclear repulsion energy58.870501
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 CCSD=FULL/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 A1 3656 3656 67.59      
2 A1 2330 2330 118.74      
3 A1 1639 1639 39.58      
4 A1 1112 1112 16.85      
5 B1 506 506 0.02      
6 B1 494i 494i 246.19      
7 B2 3788 3788 88.97      
8 B2 1142 1142 0.84      
9 B2 390 390 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 7034.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7034.2 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 CCSD=FULL/aug-cc-pVDZ
ABC
11.03695 0.33291 0.32317

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

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 1.397
N3 0.000 0.000 -1.122
H4 0.000 0.870 -1.628
H5 0.000 -0.870 -1.628

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.17461.34422.04502.0450
N21.17462.51883.14783.1478
N31.34422.51881.00701.0070
H42.04503.14781.00701.7410
H52.04503.14781.00701.7410

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.179 C1 N3 H5 120.179
N2 C1 N3 180.000 H4 N3 H5 119.642
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability