niobium pentabromide

Formula: Br₅Nb
Molecular weight: 492.426
IUPAC Standard InChI: InChI=1S/5BrH.Nb/h5*1H;/p-1
IUPAC Standard InChIKey: ITWCCCHTECIZSS-UHFFFAOYSA-M
CAS Registry Number: 13478-45-0
Chemical structure:
This structure is also available as a 2d Mol file
Other names: Niobium(V) pentabromide
Information on this page:
Other data available:
Data at other public NIST sites:
- X-ray Photoelectron Spectroscopy Database, version 5.0
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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)	900. to 6000.
A	31.72251
B	0.063464
C	-0.017499
D	0.001512
E	-0.149889
F	-115.9842
G	144.9008
H	-106.0201
Reference	Chase, 1998
Comment	Data last reviewed in December, 1974

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)
900.	31.58	141.7	120.8	18.77
1000.	31.62	145.0	123.1	21.93
1100.	31.65	148.0	125.2	25.10
1200.	31.67	150.8	127.2	28.26
1300.	31.69	153.3	129.2	31.43
1400.	31.70	155.7	131.0	34.60
1500.	31.72	157.9	132.7	37.77
1600.	31.73	159.9	134.3	40.95
1700.	31.74	161.8	135.9	44.12
1800.	31.74	163.7	137.4	47.29
1900.	31.75	165.4	138.8	50.47
2000.	31.75	167.0	140.2	53.64
2100.	31.76	168.6	141.5	56.82
2200.	31.76	170.0	142.8	59.99
2300.	31.77	171.4	144.0	63.17
2400.	31.77	172.8	145.2	66.35
2500.	31.77	174.1	146.3	69.52
2600.	31.77	175.3	147.4	72.70
2700.	31.78	176.5	148.4	75.88
2800.	31.78	177.7	149.5	79.06
2900.	31.78	178.8	150.5	82.23
3000.	31.78	179.9	151.4	85.41
3100.	31.78	180.9	152.3	88.59
3200.	31.78	181.9	153.3	91.77
3300.	31.78	182.9	154.1	94.95
3400.	31.78	183.9	155.0	98.12
3500.	31.78	184.8	155.8	101.3
3600.	31.78	185.7	156.7	104.5
3700.	31.78	186.6	157.5	107.7
3800.	31.78	187.4	158.2	110.8
3900.	31.78	188.2	159.0	114.0
4000.	31.78	189.0	159.7	117.2
4100.	31.78	189.8	160.5	120.4
4200.	31.78	190.6	161.2	123.6
4300.	31.78	191.3	161.9	126.7
4400.	31.78	192.1	162.5	129.9
4500.	31.78	192.8	163.2	133.1
4600.	31.78	193.5	163.8	136.3
4700.	31.78	194.2	164.5	139.4
4800.	31.78	194.8	165.1	142.6
4900.	31.78	195.5	165.7	145.8
5000.	31.79	196.1	166.3	149.0
5100.	31.79	196.8	166.9	152.2
5200.	31.79	197.4	167.5	155.3
5300.	31.79	198.0	168.1	158.5
5400.	31.79	198.6	168.6	161.7
5500.	31.79	199.2	169.2	164.9
5600.	31.79	199.7	169.7	168.1
5700.	31.79	200.3	170.2	171.2
5800.	31.79	200.8	170.8	174.4
5900.	31.79	201.4	171.3	177.6
6000.	31.80	201.9	171.8	180.8

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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