Organosubstituted phosphazenes. XII. He(I) photoelectron spectra of selected phenyl- and p-N,N-dimethylaminophenylfluorocyclotriphosphazenes. Technical report

Technical Report · Mon Oct 01 04:00:00 EDT 1979

OSTI ID:5522838

Allen, C W; Green, J C

He(I) photoelectron Spectra are presented for P3N3F6-n (C6H5) (n=1,2,4) and P3N3F5C6H4N(CH3)2. Ionization energies are discussed in terms of perturbations of molecular orbitals of the parent aryl and phosphazene functions. The data confirm the strong electron withdrawing effect of the P3N3F5 moiety and show a dramatic decrease in this effect as fluorine atoms are replaced by phenyl groups. One also observes a significant destabilization of the phosphazene out of plane pi molecular orbital as the fluorine atoms are replaced by phenyl groups. The ionizations from the phenyl pi a2 and pi b1 orbitals are unresolved in phenyl phosphazenes thus demonstrating the lack of significant phosphazene - aryl mesomeric interactions. The electronic effect of the electron donating dimethylamino substituent on the phenyl unit is transmitted to the phosphazene through the sigma bond system.

• Research Organization: Vermont Univ., Burlington (USA). Dept. of Chemistry
• OSTI ID: 5522838
• Report Number(s): AD-A-075218
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ARGON
CALIBRATION
ELECTRON SPECTROSCOPY
ELEMENTS
HETEROCYCLIC COMPOUNDS
IONIZATION
MAGNETIC RESONANCE
MOLECULAR STRUCTURE
NONMETALS
NUCLEAR MAGNETIC RESONANCE
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
PHOTOELECTRON SPECTROSCOPY
RARE GASES
RESONANCE
SEMIMETALS
SILICON
SPECTROSCOPY
XENON