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

using model chemistry: MP4=FULL/3-21G

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 MP4=FULL/3-21G
 hartrees
Energy at 0K-207.252943
Energy at 298.15K-207.259014
HF Energy-206.791512
Nuclear repulsion energy116.912447
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 MP4=FULL/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3530 3455        
2 A' 3095 3030        
3 A' 3017 2953        
4 A' 2893 2832        
5 A' 1684 1648        
6 A' 1598 1565        
7 A' 1510 1478        
8 A' 1458 1427        
9 A' 1439 1408        
10 A' 1284 1257        
11 A' 1138 1114        
12 A' 997 976        
13 A' 593 580        
14 A' 342 335        
15 A" 3070 3005        
16 A" 1564 1531        
17 A" 1171 1146        
18 A" 1060 1038        
19 A" 656 642        
20 A" 208 203        
21 A" 104 102        

Unscaled Zero Point Vibrational Energy (zpe) 16205.3 cm-1
Scaled (by 0.9788) Zero Point Vibrational Energy (zpe) 15861.7 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 MP4=FULL/3-21G
ABC
1.44577 0.13980 0.13067

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.294 -0.758 0.000
O2 1.446 -1.256 0.000
N3 0.000 0.593 0.000
C4 -1.377 1.134 0.000
H5 -0.638 -1.362 0.000
H6 0.789 1.237 0.000
H7 -2.075 0.284 0.000
H8 -1.571 1.742 0.895
H9 -1.571 1.742 -0.895

Atom - Atom Distances (Å)
  C1 O2 N3 C4 H5 H6 H7 H8 H9
C11.25481.38262.52431.11032.05582.58783.24513.2451
O21.25482.34683.69852.08662.57823.84254.34614.3461
N31.38262.34681.47962.05591.01842.09742.14242.1424
C42.52433.69851.47962.60252.16821.09901.09981.0998
H51.11032.08662.05592.60252.96462.18463.36233.3623
H62.05582.57821.01842.16822.96463.01752.57352.5735
H72.58783.84252.09741.09902.18463.01751.78351.7835
H83.24514.34612.14241.09983.36232.57351.78351.7909
H93.24514.34612.14241.09983.36232.57351.78351.7909

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 123.721 C1 N3 H6 116.983
O2 C1 N3 125.640 O2 C1 H5 123.716
N3 C1 H5 110.644 N3 C4 H7 107.942
N3 C4 H8 111.474 N3 C4 H9 111.474
C4 N3 H6 119.297 H7 C4 H8 108.417
H7 C4 H9 108.417 H8 C4 H9 109.018
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability