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All results from a given calculation for NH2CN (cyanamide)

using model chemistry: CCSD(T)/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes Cs 1A'
1 2 no C2V 1A1

Conformer 1 (Cs)

Jump to S1C2
Energy calculated at CCSD(T)/6-31G*
 hartrees
Energy at 0K-148.380274
Energy at 298.15K-148.382525
Nuclear repulsion energy58.571401
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(T)/6-31G*
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' 3529 3395        
2 A' 2310 2222        
3 A' 1685 1621        
4 A' 1068 1028        
5 A' 704 678        
6 A' 444 428        
7 A" 3628 3490        
8 A" 1234 1187        
9 A" 376 362        

Unscaled Zero Point Vibrational Energy (zpe) 7489.2 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 7205.4 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(T)/6-31G*
ABC
9.89159 0.32981 0.32262

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.221 0.000
N2 -0.027 1.397 0.000
N3 0.107 -1.139 0.000
H4 -0.280 -1.564 0.840
H5 -0.280 -1.564 -0.840

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.17661.36421.99241.9924
N21.17662.53993.08843.0884
N31.36422.53991.01761.0176
H41.99243.08841.01761.6796
H51.99243.08841.01761.6796

picture of cyanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 112.736 C1 N3 H5 112.736
N2 C1 N3 176.824 H4 N3 H5 111.228
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at CCSD(T)/6-31G*
 hartrees
Energy at 0K-148.377584
Energy at 298.15K 
HF Energy-147.902459
Nuclear repulsion energy58.820017
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(T)/6-31G*
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 3640 3502        
2 A1 2315 2227        
3 A1 1654 1591        
4 A1 1119 1077        
5 B1 481 462        
6 B1 524i 504i        
7 B2 3760 3618        
8 B2 1150 1107        
9 B2 379 364        

Unscaled Zero Point Vibrational Energy (zpe) 6986.6 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 6721.8 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 CCSD(T)/6-31G*
ABC
11.05252 0.33255 0.32284

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.220
N2 0.000 0.000 1.399
N3 0.000 0.000 -1.121
H4 0.000 0.870 -1.632
H5 0.000 -0.870 -1.632

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.17871.34102.04622.0462
N21.17872.51973.15323.1532
N31.34102.51971.00891.0089
H42.04623.15321.00891.7398
H52.04623.15321.00891.7398

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.437 C1 N3 H5 120.437
N2 C1 N3 180.000 H4 N3 H5 119.126
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability