Field‐dependent relaxation and absolute nuclear shielding of 207Pb in liquid PbCl4
dc.contributor.author | Hawk, Roger M. | en_US |
dc.contributor.author | Sharp, Robert R. | en_US |
dc.date.accessioned | 2010-05-06T22:13:34Z | |
dc.date.available | 2010-05-06T22:13:34Z | |
dc.date.issued | 1974-02-01 | en_US |
dc.identifier.citation | Hawk, Roger M.; Sharp, Robert R. (1974). "Field‐dependent relaxation and absolute nuclear shielding of 207Pb in liquid PbCl4." The Journal of Chemical Physics 60(3): 1009-1017. <http://hdl.handle.net/2027.42/70479> | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/70479 | |
dc.description.abstract | Relaxation times T1 and T2 of 207Pb in liquid PbCl4 have been studied for the purpose of establishing an absolute nuclear shielding scale for lead. T1 has been decomposed into scalar and spin‐rotation contributions using variable temperature measurements at the two field strengths 6.59 and 16.90 kG. T2 is much shorter than T1 and is strongly dominated by scalar coupling to chlorine. Knowledge of the scalar contributions to T1 and T2 determines the halogen relaxation times (τ35 = 7.15 μsec at 25°C), the lead‐chlorine coupling constant [(J(207Pb−35Cl) = 705 Hz)], and the reorientational correlation time (τθ = 1.72 × 10−11 sec at 25°C). A correlation time τJ for the angular momentum vector has been computed using J diffusion theory, but the value obtained appears to be too short (0.8–2.9 × 10−14 sec) to be meaningful in terms of classical diffusion of rigid molecules. Nevertheless, the known range of 207Pb chemical shifts places an absolute upper limit on τJ of 6 × 10−14 sec at 263°K. The physical significance of such short correlation times is discussed, and it is concluded that τJ probably describes collision‐induced distortions in the molecular structure. Experimental values of the spin‐rotation contribution to (T1)−1 are used in conjunction with estimated values of τJ to compute limiting values for the spin‐rotation constant that place limits on the paramagnetic part of the magnetic shielding constant. A shielding scale previously deduced from optical pumping data is discussed, and a source of possibly substantial error in this scale is pointed out. | en_US |
dc.format.extent | 3102 bytes | |
dc.format.extent | 656640 bytes | |
dc.format.mimetype | text/plain | |
dc.format.mimetype | application/pdf | |
dc.publisher | The American Institute of Physics | en_US |
dc.rights | © The American Institute of Physics | en_US |
dc.title | Field‐dependent relaxation and absolute nuclear shielding of 207Pb in liquid PbCl4 | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Physics | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48104 | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/70479/2/JCPSA6-60-3-1009-1.pdf | |
dc.identifier.doi | 10.1063/1.1681108 | en_US |
dc.identifier.source | The Journal of Chemical Physics | en_US |
dc.identifier.citedreference | W. H. Flygare, J. Chem. Phys. 41, 793 (1964). | en_US |
dc.identifier.citedreference | S. I. Chan, J. Chem. Phys. 47, 1191 (1967). | en_US |
dc.identifier.citedreference | R. R. Sharp, J. Chem. Phys. 57, 5321 (1972). | en_US |
dc.identifier.citedreference | R. M. Hawk and R. R. Sharp, J. Magn. Reson. 10, 385 (1973). | en_US |
dc.identifier.citedreference | J. E. Maciel and J. L. Dallas, J. Am. Chem. Soc. 95, 3039 (1973). | en_US |
dc.identifier.citedreference | H. M. Gibbs and C. M. White, Phys. Rev. 188, 180 (1969). | en_US |
dc.identifier.citedreference | H. M. Gibbs, B. Chang, and R. C. Greenhow, Phys. Rev. Lett. 22, 270 (1969). | en_US |
dc.identifier.citedreference | O. Lutz and G. Stricker, Phys. Lett. A 35, 397 (1971). | en_US |
dc.identifier.citedreference | G. Brauer, Handbook of Preparative Inorganic Chemistry, (Academic, New York, 1963), Vol. 1, p. 750. | en_US |
dc.identifier.citedreference | H. Friedrich, Ber. Bunsenges. Phys. Chem. 26, 1434 (1893). | en_US |
dc.identifier.citedreference | K. van Putte, J. Magn. Reson. 2, 174 (1970). | en_US |
dc.identifier.citedreference | A. Kumar and C. S. Johnson, Jr., J. Magn. Reson. 7, 55 (1972). | en_US |
dc.identifier.citedreference | R. J. H. Clark and B. K. Hunter, J. Mol. Struct. 9, 354 (1971). | en_US |
dc.identifier.citedreference | J. T. Neu and W. D. Gwinn, J. Am. Chem. Soc. 70, 3463 (1948). | en_US |
dc.identifier.citedreference | A. Muller and B. Krebs, J. Mol. Spectrosc. 24, 180 (1967). | en_US |
dc.identifier.citedreference | A. Abragam, The Principles of Nuclear Magnetism (Oxford U.P., London, 1961), Chap. VIII. | en_US |
dc.identifier.citedreference | C. H. Townes, Handbücher Physik, edited by S. Flügge (Springer, Berlin, 1958), Vol. 38, p. 444. | en_US |
dc.identifier.citedreference | J. J. Burke and P. C. Lauterbur, J. Am. Chem. Soc. 83, 326 (1961). | en_US |
dc.identifier.citedreference | Ya. A. Fialkov and Ya. P. Nazarenko, Izv. Akad. Nauk SSSR Otd. Khim. Nauk 1950, 590; Dokl. Akad. Nauk SSSR 73, 727 (1950). | en_US |
dc.identifier.citedreference | J. R. Wilson and J. E. Willard, J. Phys. Chem. 70, 1665 (1966). | en_US |
dc.identifier.citedreference | J. N. Wilson and R. G. Dickinson, J. Am. Chem. Soc. 61, 3519 (1939). | en_US |
dc.identifier.citedreference | M. Kahn and A. J. Freedman, J. Am. Chem. Soc. 76, 929 (1954). | en_US |
dc.identifier.citedreference | P. S. Hubbard, Phys. Rev. 131, 1155 (1963). | en_US |
dc.identifier.citedreference | R. E. D. McClung, J. Chem. Phys. 51, 3842 (1969). | en_US |
dc.identifier.citedreference | K. J. Johnson, J. P. Hunt, and H. W. Dodgen, J. Chem. Phys. 51, 4493 (1969). | en_US |
dc.identifier.citedreference | J. V. DiLorenzo and R. F. Schneider, Inorg. Chem. 6, 766 (1967). | en_US |
dc.identifier.citedreference | R. E. D. McClung, Chem. Phys. Lett. 19, 304 (1973). | en_US |
dc.identifier.citedreference | W. A. Steele et al., J. Chem. Phys. 38, 2404 (1963); J. Chem. Phys. 38, 2411 (1963); J. Chem. Phys. 38, 2418 (1963). | en_US |
dc.identifier.citedreference | M. Fixman and K. Ryder, J. Chem. Phys. 51, 2425 (1969). | en_US |
dc.identifier.citedreference | R. G. Gordon, J. Chem. Phys. 44, 1830 (1966). | en_US |
dc.identifier.citedreference | R. E. D. McClung, J. Chem. Phys. 51, 3842 (1969). | en_US |
dc.identifier.citedreference | R. E. D. McClung, J. Chem. Phys. 57, 5478 (1972). | en_US |
dc.identifier.citedreference | A. A. Maryott, T. C. Farrar, and M. S. Malmberg, J. Chem. Phys. 54, 64 (1971). | en_US |
dc.identifier.citedreference | K. T. Gillen, D. C. Douglass, M. S. Malmberg, and A. A. Maryott, J. Chem. Phys. 57, 5170 (1972). | en_US |
dc.identifier.citedreference | R. E. D. McClung, J. Chem. Phys. 55, 3459 (1971). | en_US |
dc.identifier.citedreference | N. F. Ramsey, Phys. Rev. 78, 699 (1950). | en_US |
dc.identifier.citedreference | W. H. Flygare and J. Goodisman, J. Chem. Phys. 49, 3122 (1968). | en_US |
dc.identifier.citedreference | K. M. S. Saxsena and P. T. Narasimham, Int. J. Quantum Chem. 1, 731 (1967). | en_US |
dc.identifier.citedreference | K. T. Gillen, J. Chem. Phys. 56, 1573 (1972). | en_US |
dc.identifier.citedreference | C. Deverell, Mol. Phys. 18, 319 (1970). | en_US |
dc.identifier.citedreference | T. R. Fowler, Ph.D. thesis (University of California, Berkeley, 1969), University Microfilms (Pub. No. 69‐10, 292). | en_US |
dc.identifier.citedreference | D. A. Frey and H. E. Weaver, J. Electrochem. Soc. 107, 930 (1960). | en_US |
dc.identifier.citedreference | M. E. Rose, Elementary Theory of Angular Momentum (Wiley, New York, 1957), p. 94. | en_US |
dc.owningcollname | Physics, Department of |
Files in this item
Remediation of Harmful Language
The University of Michigan Library aims to describe library materials in a way that respects the people and communities who create, use, and are represented in our collections. Report harmful or offensive language in catalog records, finding aids, or elsewhere in our collections anonymously through our metadata feedback form. More information at Remediation of Harmful Language.
Accessibility
If you are unable to use this file in its current format, please select the Contact Us link and we can modify it to make it more accessible to you.