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All results from a given calculation for NH2CN (cyanamide)

using model chemistry: MP2/6-31G(2df,p)

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 MP2/6-31G(2df,p)
 hartrees
Energy at 0K-148.449795
Energy at 298.15K-148.452110
Nuclear repulsion energy58.919916
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 MP2/6-31G(2df,p)
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' 3603 3403 50.62      
2 A' 2274 2147 52.36      
3 A' 1645 1554 39.98      
4 A' 1075 1016 6.51      
5 A' 681 643 218.98      
6 A' 481 454 20.48      
7 A" 3708 3502 67.47      
8 A" 1210 1143 0.04      
9 A" 412 389 0.81      

Unscaled Zero Point Vibrational Energy (zpe) 7543.8 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 7125.1 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 MP2/6-31G(2df,p)
ABC
10.05775 0.33391 0.32663

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.216 0.000
N2 -0.033 1.390 0.000
N3 0.110 -1.130 0.000
H4 -0.270 -1.556 0.834
H5 -0.270 -1.556 -0.834

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.17501.35031.97691.9769
N21.17502.52443.07143.0714
N31.35032.52441.01051.0105
H41.97693.07141.01051.6674
H51.97693.07141.01051.6674

picture of cyanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 112.942 C1 N3 H5 112.942
N2 C1 N3 176.932 H4 N3 H5 111.183
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at MP2/6-31G(2df,p)
 hartrees
Energy at 0K-148.447326
Energy at 298.15K 
HF Energy-147.922781
Nuclear repulsion energy59.158422
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 MP2/6-31G(2df,p)
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 3699 3493 95.70      
2 A1 2308 2180 89.40      
3 A1 1624 1534 49.57      
4 A1 1116 1054 13.03      
5 B1 513 484 0.14      
6 B1 508i 479i 270.46      
7 B2 3830 3618 114.63      
8 B2 1133 1070 3.53      
9 B2 410 388 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 7062.2 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 6670.2 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 MP2/6-31G(2df,p)
ABC
11.19919 0.33641 0.32660

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.216
N2 0.000 0.000 1.392
N3 0.000 0.000 -1.114
H4 0.000 0.864 -1.620
H5 0.000 -0.864 -1.620

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.17541.33042.02982.0298
N21.17542.50583.13363.1336
N31.33042.50581.00161.0016
H42.02983.13361.00161.7283
H52.02983.13361.00161.7283

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.366 C1 N3 H5 120.366
N2 C1 N3 180.000 H4 N3 H5 119.268
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability