U- ¹³C Glucose

Refocused Inadequate,   114 kHz TPPM ¹H Decoupling

Data Collected with a Doty XC5 probe at 20 kHz on a JEOL ECX 400

¹H spectra of Histidine HCL·H₂O (below - 1st figure) and Monoethyl Fumarate (below - 2nd figure) using wPMLG5, with ¹H rf Field of 105 kHz

Data Collected with a Doty XC4 HXY probe at 10 kHz on a JEOL ECA 500

¹H spectrum of Monoethyl Fumarate obtained with PMLG9-wPMLG5 Proton Spin Exchange in a 2D experiment with 0.2 ms Mix time and 89 kHz ¹H rf field.

Data Collected with a Doty XC4 HXY probe at 10 kHz on a JEOL ECA 500

1:1 Mixture glycine-1-¹³C,¹⁵N and glycine-2-¹³C,¹⁵N
REDOR-xy4, ¹³C 90 4.68 μs, ¹⁵N 90 6.18 μs, 132 kHz ¹H TPPM Decoupling, sample length restricted to 3 mm.

Data Collected with a Doty XC4 HXY probe at 10 kHz on JEOL ECA 500

High Performance Multiple Quantum MAS on Quadrupolar Nuclei:
3Q-MQMAS w/ FAM conversion, split-t1, whole echo acquisition and Cogwheel phase cycling

Data Collected with a Doty XC4 HXY probe at 20 kHz on a JEOL ECA500
From Left to Right in the image above:
²³Na – Sodium Pyro -Phosphate, Na₄P₂O₇

²⁷Al – Kyanite , Al₂OSiO₄

⁴⁵Sc – Scandium Sulphate , Sc₂(SO₄)₃·nH₂O, mixture of 70% n=2 and 30% n=5 H₂O

⁹³Nb – Lithium Niobate , LiNbO₃

¹³C natural abundance spectra of Monoethyl Fumarate

2D-PASS with Cogwheel Phase Cycling, requires good spinning speed stability. Accurate control of spinning speed enables manipulation of SSB using 2D-pass technique (shown in the spectrum below).

Data Collected on JEOL ECA500 with a Doty XC4 HXY MAS probe and a Doty probe controller, MAS = 1750 Hz