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

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

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/6-31+G**
 hartrees
Energy at 0K-208.677392
Energy at 298.15K-208.683250
HF Energy-207.974514
Nuclear repulsion energy118.699787
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/6-31+G**
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' 3671 3671        
2 A' 3187 3187        
3 A' 3087 3087        
4 A' 3034 3034        
5 A' 1781 1781        
6 A' 1569 1569        
7 A' 1507 1507        
8 A' 1502 1502        
9 A' 1420 1420        
10 A' 1321 1321        
11 A' 1184 1184        
12 A' 1024 1024        
13 A' 608 608        
14 A' 344 344        
15 A" 3162 3162        
16 A" 1522 1522        
17 A" 1169 1169        
18 A" 1030 1030        
19 A" 575 575        
20 A" 185 185        
21 A" 25 25        

Unscaled Zero Point Vibrational Energy (zpe) 16454.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16454.2 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 QCISD(T)=FULL/6-31+G**
ABC
1.48259 0.14443 0.13497

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.279 -0.758 0.000
O2 1.412 -1.239 0.000
N3 0.000 0.576 0.000
C4 -1.342 1.136 0.000
H5 -0.628 -1.383 0.000
H6 0.800 1.193 0.000
H7 -2.059 0.315 0.000
H8 -1.515 1.744 0.889
H9 -1.515 1.744 -0.889

Atom - Atom Distances (Å)
  C1 O2 N3 C4 H5 H6 H7 H8 H9
C11.22971.36282.49361.10192.01932.57323.20543.2054
O21.22972.29853.63602.04502.50713.80264.27254.2725
N31.36282.29851.45432.05681.01032.07542.11012.1101
C42.49363.63601.45432.61822.14251.08991.09111.0911
H51.10192.04502.05682.61822.94512.22063.36993.3699
H62.01932.50711.01032.14252.94512.99052.54062.5406
H72.57323.80262.07541.08992.22062.99051.76861.7686
H83.20544.27252.11011.09113.36992.54061.76861.7783
H93.20544.27252.11011.09113.36992.54061.76861.7783

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 124.506 C1 N3 H6 115.823
O2 C1 N3 124.818 O2 C1 H5 122.484
N3 C1 H5 112.697 N3 C4 H7 108.472
N3 C4 H8 111.190 N3 C4 H9 111.190
C4 N3 H6 119.671 H7 C4 H8 108.373
H7 C4 H9 108.373 H8 C4 H9 109.158
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability