iodine heptafluoride
- Formula: F7I
- Molecular weight: 259.89329
- IUPAC Standard InChI: InChI=1S/FI/c1-2
- IUPAC Standard InChIKey: PDJAZCSYYQODQF-UHFFFAOYSA-N
- CAS Registry Number: 16921-96-3
- Chemical structure:
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- Other names: Iodine fluoride
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Vibrational and/or electronic energy levels
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Takehiko Shimanouchi
Symmetry: D5h Symmetry Number σ = 10
| Sym. | No | Approximate | Selected Freq. | Infrared | Raman | Comments | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Species | type of mode | Value | Rating | Value | Phase | Value | Phase | |||
| a1' | 1 | Ifax s-str | 676 | C | ia | 676 W p | gas | |||
| a1' | 2 | Ifeq s-str | 635 | C | ia | 635 S p | gas | |||
| a2 | 3 | IFax a-str | 672 | C | 672 VS | gas | ia | |||
| a2 | 4 | FeqIFax deform | 257 | C | 257 W | gas | ia | |||
| e1' | 5 | IFeq a-str | 746 | C | 746 S b | gas | ia | |||
| e1' | 6 | FeqIFeq deform | 425 | C | 425 VS | gas | ia | |||
| e1' | 7 | FaxIFax deform | 363 | C | 363 S | gas | ia | |||
| e1 | 8 | FeqIFax deform | 310 | C | ia | 310 W dp | gas | |||
| e2' | 9 | IFeq a-str | 510 | C | ia | 510 W dp | gas | |||
| e2' | 10 | FeqIFeq deform | 352 | C | ia | 352 W dp | gas | |||
| e2 | 11 | FeqIFax deform | 200 | D | ia | ia | CF. OC(ν2+ν11,ν5+ν11) | |||
Source: Shimanouchi, 1972
Notes
| VS | Very strong |
| S | Strong |
| W | Weak |
| ia | Inactive |
| b | Broad |
| p | Polarized |
| dp | Depolarized |
| OC | Frequency estimated from an overtone or a combination tone indicated in the parentheses. |
| CF | Calculated frequency |
| C | 3~6 cm-1 uncertainty |
| D | 6~15 cm-1 uncertainty |
References
Go To: Top, Vibrational and/or electronic energy levels, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Shimanouchi, 1972
Shimanouchi, T.,
Tables of Molecular Vibrational Frequencies Consolidated Volume II,
J. Phys. Chem. Ref. Data, 1972, 6, 3, 993-1102. [all data]
Notes
Go To: Top, Vibrational and/or electronic energy levels, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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