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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: MP4=FULL/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no CS cis 2A'
1 2 yes CS trans 2A'

Conformer 1 (CS cis)

Jump to S1C2
Energy calculated at MP4=FULL/cc-pVDZ
 hartrees
Energy at 0K-93.707460
Energy at 298.15K-93.708731
HF Energy-93.403658
Nuclear repulsion energy28.234914
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/cc-pVDZ
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' 3382 3264        
2 A' 2974 2870        
3 A' 2327 2246        
4 A' 1033 997        
5 A' 773 746        
6 A" 919 887        

Unscaled Zero Point Vibrational Energy (zpe) 5703.3 cm-1
Scaled (by 0.9651) Zero Point Vibrational Energy (zpe) 5504.2 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 MP4=FULL/cc-pVDZ
ABC
12.77996 1.30947 1.18777

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.112 0.631 0.000
N2 0.112 -0.586 0.000
H3 -0.675 1.424 0.000
H4 -0.778 -1.111 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.21721.11701.9561
N21.21722.15841.0333
H31.11702.15842.5365
H41.95611.03332.5365

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 120.513 H3 C1 N2 135.200
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at MP4=FULL/cc-pVDZ
 hartrees
Energy at 0K-93.716202
Energy at 298.15K-93.717522
HF Energy-93.408962
Nuclear repulsion energy28.176650
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/cc-pVDZ
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' 3505 3382        
2 A' 3018 2913        
3 A' 2391 2307        
4 A' 1199 1157        
5 A' 824 796        
6 A" 964 930        

Unscaled Zero Point Vibrational Energy (zpe) 5950.2 cm-1
Scaled (by 0.9651) Zero Point Vibrational Energy (zpe) 5742.5 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/cc-pVDZ
ABC
13.38008 1.30316 1.18750

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.002 0.647 0.000
N2 -0.002 -0.580 0.000
H3 0.926 1.265 0.000
H4 -0.897 -1.086 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22621.11561.9495
N21.22622.06501.0276
H31.11562.06502.9745
H41.94951.02762.9745

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 119.497 H3 C1 N2 123.654
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability