Ruthenium monoxide

Formula: ORu
Molecular weight: 117.07
IUPAC Standard InChI: InChI=1S/O.Ru/q-2;+2
IUPAC Standard InChIKey: KZECJIQUDMPFJV-UHFFFAOYSA-N
CAS Registry Number: 12143-05-4
Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript.
Permanent link for this species. Use this link for bookmarking this species for future reference.
Information on this page:
Data at other public NIST sites:
- Gas Phase Kinetics Database
Options:
- Switch to SI units

Gas phase ion energetics data

Go To: Top, Constants of diatomic molecules, References, Notes

Data compiled as indicated in comments:
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to ORu⁺ (ion structure unspecified)

Ionization energy determinations

IE (eV)	Method	Reference	Comment
8.7	EI	Norman, Staley, et al., 1968	RDSH

Constants of diatomic molecules

Go To: Top, Gas phase ion energetics data, References, Notes

Data compiled by: Klaus P. Huber and Gerhard H. Herzberg

Data collected through May, 1975

Symbols used in the table of constants
Symbol	Meaning
State	electronic state and / or symmetry symbol
T_e	minimum electronic energy (cm^-1)
ω_e	vibrational constant – first term (cm^-1)
ω_ex_e	vibrational constant – second term (cm^-1)
ω_ey_e	vibrational constant – third term (cm^-1)
B_e	rotational constant in equilibrium position (cm^-1)
α_e	rotational constant – first term (cm^-1)
γ_e	rotation-vibration interaction constant (cm^-1)
D_e	centrifugal distortion constant (cm^-1)
β_e	rotational constant – first term, centrifugal force (cm^-1)
r_e	internuclear distance (Å)
Trans.	observed transition(s) corresponding to electronic state
ν₀₀	position of 0-0 band (units noted in table)

Diatomic constants for ¹⁰²Ru¹⁶O
State	T_e	ω_e	ω_ex_e	ω_ey_e	B_e	α_e	γ_e	D_e	β_e	r_e	Trans.	ν₀₀
Additional unclassified emission bands in the region 15500 - 17200 cm^-1.
↳Scullman and Thelin, 1975
B₃	a₃ + 18121.4	792.9 H	4.1		0.3818	0.0025		4E-7		1.787₁	B₃ → A₃ 1 R	18086.2 Z
B₃	↳Raziunas, Macur, et al., 1965; missing citation
B₂ (Ω=3)	a₂ + 18101	[783] H			[0.382] 2			[6E-7] 2		[1.78₇]	B₂ → A₂ 1 R	18065.1 Z
B₂ (Ω=3)	↳Raziunas, Macur, et al., 1965; missing citation
B₁					[(0.384)]					[(1.78)]	B₁ → A₁ 1 R	18024 Z
B₁	↳Raziunas, Macur, et al., 1965; Scullman and Thelin, 1975
State	T_e	ω_e	ω_ex_e	ω_ey_e	B_e	α_e	γ_e	D_e	β_e	r_e	Trans.	ν₀₀
A₃	a₃ 3	863.5 H	4.6		0.4137	0.0028		3E-7		1.716₈
A₂ (Ω=3)	a₂ 3	[855] H			[0.4144] 4			[3.9E-7]		[1.715₄]
A₁	a₁ 3				[(0.414)]					[(1.72)]

Notes

R and P branches only.

B₁ = 0.381, D₁= 9E-7. Perturbations.

Relative position of these three states unknown.

B₁ = 0.413.

Thermochemical value (mass-spectrometry) Norman, Staley, et al., 1968.

References

Go To: Top, Gas phase ion energetics data, Constants of diatomic molecules, Notes

Norman, Staley, et al., 1968
Norman, J.H.; Staley, H.G.; Bell, W.E., Mass spectrometric study of the noble metal oxides. Ruthenium-oxygen system, Advan. Chem. Ser., 1968, 72, 101. [all data]

Scullman and Thelin, 1975
Scullman, R.; Thelin, B., The emission spectrum of RuO between 5000 and 6800 Å, J. Mol. Spectrosc., 1975, 56, 64. [all data]

Raziunas, Macur, et al., 1965
Raziunas, V.; Macur, G.; Katz, S., Emission spectrum and thermodynamic properties of ruthenium monoxide, J. Chem. Phys., 1965, 43, 1010. [all data]

Notes

Go To: Top, Gas phase ion energetics data, Constants of diatomic molecules, References

Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
Customer support for NIST Standard Reference Data products.