COA of Formula: C3H9OP. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: Trimethylphosphineoxide, is researched, Molecular C3H9OP, CAS is 676-96-0, about Accurate heteronuclear distance measurements at all magic-angle spinning frequencies in solid-state NMR spectroscopy. Author is Liang, Lixin; Ji, Yi; Zhao, Zhenchao; Quinn, Caitlin M.; Han, Xiuwen; Bao, Xinhe; Polenova, Tatyana; Hou, Guangjin.
Heteronuclear dipolar coupling is indispensable in revealing vital information related to the mol. structure and dynamics, as well as intermol. interactions in various solid materials. Although numerous approaches have been developed to selectively reintroduce heteronuclear dipolar coupling under MAS, most of them lack universality and can only be applied to limited spin systems. Herein, we introduce a new and robust technique dubbed phase modulated rotary resonance (PMRR) for reintroducing heteronuclear dipolar couplings while suppressing all other interactions under a broad range of MAS conditions. The standard PMRR requires the radiofrequency (RF) field strength of only twice the MAS frequency, can efficiently recouple the dipolar couplings with a large scaling factor of 0.50, and is robust to exptl. imperfections. Moreover, the adjustable window modification of PMRR, dubbed wPMRR, can improve its performance remarkably, making it well suited for the accurate determination of dipolar couplings in various spin systems. The robust performance of such pulse sequences has been verified theor. and exptl. via model compounds, at different MAS frequencies. The application of the PMRR technique was demonstrated on the H-ZSM-5 zeolite, where the interaction between the Bronsted acidic hydroxyl groups of H-ZSM-5 and the absorbed trimethylphosphine oxide (TMPO) were probed, revealing the detailed configuration of super acid sites.
In some applications, this compound(676-96-0)COA of Formula: C3H9OP is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.
Reference:
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem