Dimethyl methylphosphonate

Formula: C₃H₉O₃P
Molecular weight: 124.0755
IUPAC Standard InChI: InChI=1S/C3H9O3P/c1-5-7(3,4)6-2/h1-3H3
IUPAC Standard InChIKey: VONWDASPFIQPDY-UHFFFAOYSA-N
CAS Registry Number: 756-79-6
Chemical structure:
This structure is also available as a 2d Mol file
Other names: DMMP; Dimethyl methanephosphonate; Phosphonic acid, methyl-, dimethyl ester; Methanephosphonic acid, dimethyl ester; Dimethoxymethylphosphine oxide; NCI-C54762; Pyrol DMMP; Methyl phosphonic acid, dimethyl ester; Dimethyl ester of methylphosphonic acid; Furan TF 2000; Fyrol DMMP; Metaran; O,O-Dimethyl methylphosphonate; NSC 62240; Phosphonic acid, P-methyl-, dimethyl ester
Permanent link for this species. Use this link for bookmarking this species for future reference.
Information on this page:
Other data available:
Options:
- Switch to calorie-based units

Data at NIST subscription sites:

NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.

Gas phase ion energetics data

Go To: Top, References, Notes

Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

IE (eV)	Method	Reference	Comment
10.00	PE	Zverev and Villem, 1980	LLK
10.00	PE	Zverev, Villem, et al., 1979	LLK
10.71	PE	Chattorpadhyay, Findley, et al., 1981	Vertical value; LLK

Appearance energy determinations

Ion	AE (eV)	Other Products	Method	Reference	Comment
CHO⁺	18.9 ± 0.8	?	EI	Bafus, Gallegos, et al., 1966	RDSH
CH₃⁺	16.8 ± 0.1	?	EI	Bafus, Gallegos, et al., 1966	RDSH
CH₃O⁺	13.8 ± 0.2	?	EI	Bafus, Gallegos, et al., 1966	RDSH
CH₄OP⁺	16.9 ± 0.2	?	EI	Bafus, Gallegos, et al., 1966	RDSH
CH₄O₂P⁺	13.4 ± 0.3	?	EI	Bafus, Gallegos, et al., 1966	RDSH
CH₅O₂P⁺	11.9	?	EI	Bafus, Gallegos, et al., 1966	RDSH
C₂H₅O⁺	16.3 ± 0.1	?	EI	Bafus, Gallegos, et al., 1966	RDSH
C₂H₆O₂P⁺	12.5 ± 0.1	?	EI	Bafus, Gallegos, et al., 1966	RDSH
C₂H₆O₃P⁺	13.3 ± 0.3	CH₃	EI	Bafus, Gallegos, et al., 1966	RDSH
C₂H₇O₂P⁺	11.5 ± 0.2	CH₂O	EI	Bafus, Gallegos, et al., 1966	RDSH
PO⁺	19.4 ± 0.3	?	EI	Bafus, Gallegos, et al., 1966	RDSH

References

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

Zverev and Villem, 1980
Zverev, V.V.; Villem, Y.Y., Ionizationp potentials of phosphoryl compounds, J. Struct. Chem., 1980, 21, 22, In original 30. [all data]

Zverev, Villem, et al., 1979
Zverev, V.V.; Villem, Ya.Ya.; Bel'skii, V.E.; Kitaev, Yu.P., The photoelectronic spectra of phosphoryl compounds, Izv. Akad. Nauk SSSR, Ser. Khim., 1979, 1, 84. [all data]

Chattorpadhyay, Findley, et al., 1981
Chattorpadhyay, S.; Findley, G.L.; McGlynn, S.P., Photoelectron spectroscopy of phosphites and phosphates, J. Electron Spectrosc. Relat. Phenom., 1981, 24, 27. [all data]

Bafus, Gallegos, et al., 1966
Bafus, D.A.; Gallegos, E.J.; Kiser, R.W., An electron impact investigation of some alkyl phosphate esters, J. Phys. Chem., 1966, 70, 2614. [all data]

Notes

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

Symbols used in this document:

AE Appearance energy
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.