Nuclear magnetometers for earth's field measurements based on dy

Details Nuclear magnetometers for earth's field measurements based on dy Nuclear magnetometers for earth's field measurements based on dy

1974-09-09

1976-06-29

Reese, Robert M.

Chemistry: physical processes

Physical processes

Crystallization

260307FA, C07D26300, G01N 2726

Patent

active

039664090

ABSTRACT:
A free radical substance for use in a suitable solvent as the sample material in nuclear dynamic polarization type magnetometers which is a free radical substance of the oxazolidine group wherein the radicals R.sub.1 and R.sub.2 are chain radicals of the type --(CH.sub.2).sub.n CH.sub.3, wherein n varies from 0 to 2. It has been found that the free radical 2,2,4,4, tetramethyl oxazolidine-3-oxyl has outstanding characteristics for this purpose.

REFERENCES:
patent: 3489522 (1970-01-01), McConnell
patent: 3668214 (1972-06-01), McConnell et al.
Hackh's Chemical Dictionary, 4th ed., McGraw-Hill, p. 426, 1969.

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