NUCLEAR MAGNETIC RESONANCE ABSORPTION IN GLASS. I. NUCLEAR QUADRUPOLE EFFECTS IN BORON OXIDE, SODA-BORIC OXIDE, AND BOROSILICATE GLASSES

Journal Article · Sat Nov 01 00:00:00 EST 1958 · Journal of Chemical Physics (U.S.)

DOI:https://doi.org/10.1063/1.1744697· OSTI ID:4321538

Silver, A H; Bray, P J

Nov. The nuclear magnetic resonance spectrum of B/sup 11/ has been investigated in several glassy materials containing boron oxide, A value of 2.76 plus or minus 0.05 Mc for the nuclear quadrupole coupling constant of B/sup 11/ has been calculated from the second-order quadrupole perturbation of the m = 1/2-- -1/2 resonance line. The same quadrupole interaction has been observed in pure boron oxide, B/sub 2/ O/sub 3/, soda-boric oxide binary glasses, and two commercial borosilicate glasses. The quadrupole coupling constant is interpreted as arising from the bonding electrons in BO/sub 3/ groups which comprise the glass network in boron oxide. Addition of oxygen ions to the glass network induces a change in the boron configuration from BO/sub 3/ planar groups to BO/ sub 4/ tetrahedra resulting in a reduction in the quadrupole interaction. This effect has been observed in the Na/sub 2/O-B/sub 2/0/sub 3/ glasses and in Corning ""Pyrex"" and 707 borosilicate glasses. (auth)

• Research Organization: Brown Univ., Providence
• Sponsoring Organization: USDOE
• NSA Number: NSA-13-002451
• OSTI ID: 4321538
• Journal Information: Journal of Chemical Physics (U.S.), Vol. Vol: 29; Other Information: Orig. Receipt Date: 31-DEC-59
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

PHYSICS AND MATHEMATICS
ABSORPTION
BORON 11
BORON OXIDES
BORON SILICATES
COUPLING
ELECTRONS
GLASS
INTERACTIONS
IONS
NUCLEAR MAGNETIC RESONANCE
NUCLEAR MODELS
OXYGEN
PERTURBATION THEORY
PYREX
QUADRUPOLES
QUANTUM MECHANICS
RADIO WAVES
RESONANCE
SODIUM CARBONATES
SPECTRA