Powell, Herbert

The VSEPR model was first explored by the British chemists Nevil Sidgwick and Herbert Powell and has been developed by the Canadian chemist Ronald Gillespie. 

Submitted by Donald J. Reif and Herbert O. House.1 Checked by M. S. Newman and W. H. Powell. 

Finally, I wish to thank those members of Inorganic Syntheses, Inc., who read the original manuscripts and gave me much valuable advice and help. I am especially indebted to Professors Eugene C. Ashby and Herbert D. Kaesz who contacted prospective authors for the syntheses of main group hydrides and transition metal hydrides, respectively. I also wish to thank Warren H. Powell and Mr. Thomas E. Sloan for their invaluable assistance in nomenclature matters and in the copy-editing of the manuscripts as well as Professor W. Conard Fernelius for his meticulous reading of proof for the entire volume. 

The name clathrate, from the Greek klathron KXaOpov, bolt or lock, since the volatile guest compound is locked into the crystal), was coined by Herbert M. Powell, who studied many of them. Examples of clathrates are provided by the gas hydrates, first identified by Sir Humphrey Davy, who prepared chlorine hydrate by bubbling chlorine into cool water. This hydrate was shown to have the chemical formula 8CI2 46H2O. The anesthetic properties of chloroform have been attributed to the formation of such gas hydrates in brain tissue. ... 

Herbert, B. N., Hill, E. C., Oates, P. D., Powell, D., Shennan, J. L. and Whittle, R., 1987. A method for testing light distillate fuels. In J. W. Hopton and E. C. Hill, (eds.). Industrial Microbiology Testing, Society for Applied Bacteriology Technical Series No. 23. Oxford, Blackwell Scientific, pp. 215-219. 

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