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All results from a given calculation for HCONHCH3 (N-methylformamide)

using model chemistry: QCISD(T)=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS cis 1A'
Energy calculated at QCISD(T)=FULL/6-31G*
 hartrees
Energy at 0K-208.616776
Energy at 298.15K-208.622684
HF Energy-207.956495
Nuclear repulsion energy118.665119
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(T)=FULL/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' 3606 3606        
2 A' 3145 3145        
3 A' 3050 3050        
4 A' 2976 2976        
5 A' 1822 1822        
6 A' 1568 1568        
7 A' 1509 1509        
8 A' 1504 1504        
9 A' 1424 1424        
10 A' 1324 1324        
11 A' 1187 1187        
12 A' 1028 1028        
13 A' 612 612        
14 A' 347 347        
15 A" 3115 3115        
16 A" 1525 1525        
17 A" 1169 1169        
18 A" 1039 1039        
19 A" 598 598        
20 A" 192 192        
21 A" 42 42        

Unscaled Zero Point Vibrational Energy (zpe) 16389.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16389.3 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(T)=FULL/6-31G*
ABC
1.48043 0.14446 0.13501

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.279 -0.762 0.000
O2 1.406 -1.241 0.000
N3 0.000 0.573 0.000
C4 -1.335 1.143 0.000
H5 -0.640 -1.386 0.000
H6 0.808 1.188 0.000
H7 -2.064 0.323 0.000
H8 -1.509 1.757 0.893
H9 -1.509 1.757 -0.893

Atom - Atom Distances (Å)
  C1 O2 N3 C4 H5 H6 H7 H8 H9
C11.22511.36392.49691.11002.02062.58193.21593.2159
O21.22512.29533.63322.05132.50133.80664.27654.2765
N31.36392.29531.45182.06021.01562.07872.11622.1162
C42.49693.63321.45182.62232.14411.09631.09801.0980
H51.11002.05132.06022.62232.95272.22463.38083.3808
H62.02062.50131.01562.14412.95272.99922.54822.5482
H72.58193.80662.07871.09632.22462.99921.77781.7778
H83.21594.27652.11621.09803.38082.54821.77781.7868
H93.21594.27652.11621.09803.38082.54821.77781.7868

picture of N-methylformamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 C4 124.913 C1 N3 H6 115.460
O2 C1 N3 124.801 O2 C1 H5 122.838
N3 C1 H5 112.362 N3 C4 H7 108.524
N3 C4 H8 111.428 N3 C4 H9 111.428
C4 N3 H6 119.628 H7 C4 H8 108.227
H7 C4 H9 108.227 H8 C4 H9 108.902
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability