Coupling constants ethers, cyclic

Chemical Shifts and Coupling Constants of Cyclic Ethers... 

Chemical Shifts and Coupling Constants of Cyclic Ethers (3 in ppm, J in Hz)... 

H-Chemical Shift (6 in ppm relative to TMs) and Coupling Constants (J in Hz) in Non-Aromatic Cyclic Ethers... 

Conversely, Ti (i.e., in practice linewidth) measurements allied to (estimated) values of the quadrupolar coupling constants have been used to determine r<. and hence to study the motional behavior of various species. Thus t<. increases with the hydrocarbon chain-length in aliphatic ethers, and in acetone 0 measurements can give information not available from C, H, or H owing to rapid methyl group rotation. Cyclic ketones, cyclic ethers, and crown ethers and their complexes have also been studied, as have water reorientation in a lyotropic lamellar phase and motions of the sulfate ion in aqueous solution. Detailed studies of polynuclear osmium carbonyl dynamics have been undertaken, and allied to... 

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