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All results from a given calculation for ZnCH2 (Zinc methylene)

using model chemistry: MP2=FULL/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 3B1
2 1 yes C2V 1A1

State 1 (3B1)

Jump to S2C1
Energy calculated at MP2=FULL/STO-3G
 hartrees
Energy at 0K-1795.910004
Energy at 298.15K-1795.911094
Nuclear repulsion energy74.173467
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=FULL/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3377 3002 1.04      
2 A1 1663 1478 5.42      
3 A1 724 644 95.77      
4 B1 476 423 7.74      
5 B2 3505 3116 1.11      
6 B2 364 324 6.70      

Unscaled Zero Point Vibrational Energy (zpe) 5054.6 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 4493.0 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=FULL/STO-3G
ABC
10.55257 0.43998 0.42237

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Zn1 0.000 0.000 0.395
C2 0.000 0.000 -1.320
H3 0.000 0.890 -1.969
H4 0.000 -0.890 -1.969

Atom - Atom Distances (Å)
  Zn1 C2 H3 H4
Zn11.71482.52662.5266
C21.71481.10211.1021
H32.52661.10211.7805
H42.52661.10211.7805

picture of Zinc methylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Zn1 C2 H3 126.123 Zn1 C2 H4 126.123
H3 C2 H4 107.753
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (1A1)

Jump to S1C1
Energy calculated at MP2=FULL/STO-3G
 hartrees
Energy at 0K-1795.884625
Energy at 298.15K-1795.885991
Nuclear repulsion energy73.814943
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=FULL/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3360 2987 18.63      
2 A1 1579 1403 3.20      
3 A1 793 705 14.08      
4 B1 866 770 34.84      
5 B2 3490 3102 0.01      
6 B2 403 358 2.54      

Unscaled Zero Point Vibrational Energy (zpe) 5245.6 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 4662.8 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=FULL/STO-3G
ABC
10.16627 0.43662 0.41864

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Zn1 0.000 0.000 0.396
C2 0.000 0.000 -1.330
H3 0.000 0.907 -1.958
H4 0.000 -0.907 -1.958

Atom - Atom Distances (Å)
  Zn1 C2 H3 H4
Zn11.72602.52342.5234
C21.72601.10361.1036
H32.52341.10361.8140
H42.52341.10361.8140

picture of Zinc methylene state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability