boron and trimethyl-borate

boron has been researched along with trimethyl-borate* in 2 studies

Other Studies

2 other study(ies) available for boron and trimethyl-borate

Article	Year
11B magnetic resonance imaging and MAS spectroscopy of trimethylborate-treated radiata pine wood. Solid state nuclear magnetic resonance, 1999, Volume: 15, Issue:1 Boron-11 nuclear magnetic resonance imaging and spectroscopy have been used to characterise the nature and distribution of boron compounds after preservative treatment of radiata pine wood with trimethylborate (TMB). One day after treatment, 11B magnetic resonance imaging microscopy showed significant differences in the morphological distribution of boron species, with there apparently being no treatment penetration of the latewood. 11B MAS NMR spectroscopy of freshly preservative-treated radiata pine wood, which had been separated into latewood and earlywood, showed the only boron species present in the latewood to be boric acid while in the earlywood both TMB and boric acid were initially present. Due to quadrupolar broadening and a short T2 value, the boric acid signal relaxed too quickly to be observable and this caused the apparent lack of 11B in the image when only boric acid was present. TMB undergoes hydrolysis to form boric acid and in radiata pine latewood, this hydrolysis reaction is rapid. Topics: Borates; Boric Acids; Boron; Magnetic Resonance Spectroscopy; Wood	1999
Borinium adduct ion formation with barbiturates in a quadrupole ion-trap mass spectrometer. Journal of mass spectrometry : JMS, 1996, Volume: 31, Issue:4 Barbiturates are a class of drugs that are utilized as anesthetics and sleeping agents and are used for the treatment of anxiety, epilepsy and other psychiatric disorders. Because of their pyrimidine structures, barbiturates are highly basic compounds. The evaluation of the formation of adducts involving the borinium ion, B(OCH3)2+, and the barbiturates in a quadrupole ion trap is described. The adducts [M + 73]+ dissociate by elimination of methanol followed by the attachment of a trimethylborate or water molecule. This multi-step pathway is characteristic of a basic, nitrogen-containing structure that has at least one acidic hydrogen. Model compounds were used to probe the nature of this unusual reaction pathway, which involves nucleophilic attack by a methoxyl oxygen of neutral trimethyl borate at the boron atom of the adduct. Topics: Barbiturates; Borates; Boron; Indicators and Reagents; Mass Spectrometry; Protons; Stereoisomerism	1996

Article

Year

11B magnetic resonance imaging and MAS spectroscopy of trimethylborate-treated radiata pine wood.

Solid state nuclear magnetic resonance, 1999, Volume: 15, Issue:1

Boron-11 nuclear magnetic resonance imaging and spectroscopy have been used to characterise the nature and distribution of boron compounds after preservative treatment of radiata pine wood with trimethylborate (TMB). One day after treatment, 11B magnetic resonance imaging microscopy showed significant differences in the morphological distribution of boron species, with there apparently being no treatment penetration of the latewood. 11B MAS NMR spectroscopy of freshly preservative-treated radiata pine wood, which had been separated into latewood and earlywood, showed the only boron species present in the latewood to be boric acid while in the earlywood both TMB and boric acid were initially present. Due to quadrupolar broadening and a short T2 value, the boric acid signal relaxed too quickly to be observable and this caused the apparent lack of 11B in the image when only boric acid was present. TMB undergoes hydrolysis to form boric acid and in radiata pine latewood, this hydrolysis reaction is rapid.

Topics: Borates; Boric Acids; Boron; Magnetic Resonance Spectroscopy; Wood

1999

Borinium adduct ion formation with barbiturates in a quadrupole ion-trap mass spectrometer.

Journal of mass spectrometry : JMS, 1996, Volume: 31, Issue:4

Barbiturates are a class of drugs that are utilized as anesthetics and sleeping agents and are used for the treatment of anxiety, epilepsy and other psychiatric disorders. Because of their pyrimidine structures, barbiturates are highly basic compounds. The evaluation of the formation of adducts involving the borinium ion, B(OCH3)2+, and the barbiturates in a quadrupole ion trap is described. The adducts [M + 73]+ dissociate by elimination of methanol followed by the attachment of a trimethylborate or water molecule. This multi-step pathway is characteristic of a basic, nitrogen-containing structure that has at least one acidic hydrogen. Model compounds were used to probe the nature of this unusual reaction pathway, which involves nucleophilic attack by a methoxyl oxygen of neutral trimethyl borate at the boron atom of the adduct.

Topics: Barbiturates; Borates; Boron; Indicators and Reagents; Mass Spectrometry; Protons; Stereoisomerism

1996