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All results from a given calculation for CH2BrF (Methane, bromofluoro-)

using model chemistry: QCISD/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/3-21G*
 hartrees
Energy at 0K-2698.330817
Energy at 298.15K-2698.336240
HF Energy-2697.969301
Nuclear repulsion energy162.008657
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/3-21G*
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' 3100 2980 19.44      
2 A' 1574 1513 0.87      
3 A' 1389 1335 61.78      
4 A' 1084 1042 91.76      
5 A' 644 619 54.46      
6 A' 295 284 1.10      
7 A" 3167 3044 14.26      
8 A" 1263 1214 1.64      
9 A" 970 932 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 6742.4 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 6480.1 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/3-21G*
ABC
1.28428 0.12003 0.11218

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.530 -1.125 0.000
F2 -0.602 -1.958 0.000
Br3 0.000 0.770 0.000
H4 1.120 -1.285 0.905
H5 1.120 -1.285 -0.905

Atom - Atom Distances (Å)
  C1 F2 Br3 H4 H5
C11.40591.96721.09131.0913
F21.40592.79292.05812.0581
Br31.96722.79292.50832.5083
H41.09132.05812.50831.8092
H51.09132.05812.50831.8092

picture of Methane, bromofluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 Br3 110.688 F2 C1 H4 110.376
F2 C1 H5 110.376 Br3 C1 H4 106.658
Br3 C1 H5 106.658 H4 C1 H5 111.964
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability