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:
This structure is also available as a 2d Mol file or as a computed 3d SD file
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Species with the same structure:
- Iodine monofluoride
Other names: Iodine fluoride
Information on this page:
Other data available:
- Gas phase thermochemistry data
- Vibrational and/or electronic energy levels
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Gas Phase Heat Capacity (Shomate Equation)

C_p° = A + B*t + C*t² + D*t³ + E/t²
H° − H°_298.15= A*t + B*t²/2 + C*t³/3 + D*t⁴/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t²/2 + D*t³/3 − E/(2*t²) + G
C_p = heat capacity (cal/mol*K)
H° = standard enthalpy (kcal/mol)
S° = standard entropy (cal/mol*K)
t = temperature (K) / 1000.

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Temperature (K)	298. to 6000.
A	41.98040
B	1.471490
C	-0.396962
D	0.033781
E	-0.935282
F	-245.4149
G	128.1730
H	-229.7000
Reference	Chase, 1998
Comment	Data last reviewed in December, 1969

Temperature (K)	C_p (cal/mol*K)	S° (cal/mol*K)	-(G° - H°_298.15)/T (cal/mol*K)	H° - H°_298.15 (kcal/mol)
298.	31.85	83.04	83.05	-0.00
300.	32.00	83.25	83.05	0.06
400.	36.66	93.19	84.37	3.52
500.	38.88	101.6	87.00	7.31
600.	40.13	108.8	90.06	11.27
700.	40.92	115.1	93.20	15.32
800.	41.46	120.6	96.29	19.45
900.	41.85	125.5	99.26	23.61
1000.	42.15	129.9	102.1	27.81
1100.	42.39	134.0	104.8	32.04
1200.	42.58	137.7	107.4	36.29
1300.	42.74	141.1	109.9	40.56
1400.	42.88	144.2	112.2	44.84
1500.	42.99	147.2	114.4	49.13
1600.	43.09	150.0	116.6	53.44
1700.	43.18	152.6	118.6	57.75
1800.	43.25	155.1	120.6	62.07
1900.	43.32	157.4	122.5	66.40
2000.	43.37	159.6	124.3	70.73
2100.	43.42	161.7	126.0	75.07
2200.	43.46	163.8	127.7	79.42
2300.	43.50	165.7	129.3	83.77
2400.	43.53	167.6	130.8	88.12
2500.	43.56	169.3	132.3	92.47
2600.	43.58	171.0	133.8	96.83
2700.	43.60	172.7	135.2	101.2
2800.	43.61	174.3	136.6	105.5
2900.	43.62	175.8	137.9	109.9
3000.	43.63	177.3	139.2	114.3
3100.	43.64	178.7	140.4	118.6
3200.	43.64	180.1	141.7	123.0
3300.	43.64	181.4	142.8	127.4
3400.	43.64	182.7	144.0	131.7
3500.	43.64	184.0	145.1	136.1
3600.	43.64	185.2	146.2	140.5
3700.	43.63	186.4	147.3	144.8
3800.	43.63	187.6	148.3	149.2
3900.	43.62	188.7	149.4	153.5
4000.	43.62	189.8	150.4	157.9
4100.	43.61	190.9	151.3	162.3
4200.	43.61	192.0	152.3	166.6
4300.	43.60	193.0	153.2	171.0
4400.	43.60	194.0	154.1	175.3
4500.	43.60	195.0	155.0	179.7
4600.	43.59	195.9	155.9	184.1
4700.	43.59	196.9	156.8	188.4
4800.	43.59	197.8	157.6	192.8
4900.	43.59	198.7	158.4	197.1
5000.	43.60	199.6	159.3	201.5
5100.	43.61	200.4	160.1	205.9
5200.	43.61	201.3	160.8	210.2
5300.	43.62	202.1	161.6	214.6
5400.	43.64	202.9	162.4	219.0
5500.	43.65	203.7	163.1	223.3
5600.	43.67	204.5	163.8	227.7
5700.	43.70	205.3	164.6	232.1
5800.	43.72	206.0	165.3	236.4
5900.	43.75	206.8	166.0	240.8
6000.	43.79	207.5	166.7	245.2

References

Go To: Top, Gas Phase Heat Capacity (Shomate Equation), Notes

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

Notes

Go To: Top, Gas Phase Heat Capacity (Shomate Equation), References

Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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