Wikipedia

Earl Muetterties

US-amerikanischer Chemiker
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Vorlage:Infobox Scientist

Earl Muetterties earned a bachelors degree in chemistry at Northwestern University in 1949 and received his doctoral thesis in boron-nitrogen chemistry under Charles Brown[1] and Eugene G. Rochow[2] at Harvard in 1952. He joined DuPont Central Research Department and was promoted to research supervisor in 1955.

In 1995, NMR spectroscopy was in its nascent stages. In collaboration with William D. Phillips he exploited NMR for study of dynamic processes in inorganic compounds.[3][4] Earl's research group explored the synthesis of fluorocarbons and main-group hydrides, particularly SiH4 and B2H6.

The boron hydride work led to one of the most noted aspects of Earl's career, the discovery of polyhedral borane anions such as B12H122-.[5] After Walter Knoth discovered that the dimethylsulfide complex of B10H12 could be reduced to the dianion, B10H102-,[6][7][8] Earl led the attack on the substitution chemistry of that molecule.


In addition to the polyhedral borane work, Earl’s group began the exploration of pi-allyl, fluoroalkyl, and boron hydride complexes of the transition metals. Earl's own research diversified to exploration of stereochemically-non-rigid complexes with coordination number six thru eleven.[9]

In 1965, Earl became Associate Director in the DuPont Central Research and set about reestablishing catalysis as a major discipline within DuPont. In addition to groups in homogeneous and heterogeneous catalysis, he established groups in the synthesis and spectroscopy of organometallic compounds. Earl was able to write papers with exceptional speed because he had the remarkable ability to dictate papers to his secretary in almost-final form.[10] In addition to his scientific acumen and administrative capabilities, Earl was a prolific inventor. [11][12][13][14][15][16][17]

Earl's academic ties started with an adjunct professorship in chemistry at Princeton (1967–1969) and then at the University of Pennsylvania (1969–1973). His broad personal research interests even included research on mammalian pheromones[18][19][20] with the Monell Chemical Senses Center of the University of Pennsylvania. After a two-month lectureship at Cambridge University in 1972, Earl left DuPont to assume a professorship at Cornell in 1973. His major research theme remained organometallic chemistry and its relationship to homogeneous catalysis but he also began exploring the fundamentals of heterogeneous catalysis. He maintained an active collaboration with Roald Hoffman. Labile allyl[21] and phosphite complexes of cobalt and rhodium were among the first well-characterized soluble catalysts for the hydrogenation of benzene.[22]

In 1979, Earl moved to the University of California, Berkeley. He did research in homogeneous catalysis and cluster chemistry in the chemistry department at the university and worked on surface science at the Lawrence Berkeley Laboratory (LBL). His carbide clusters and anionic dinuclear rhodium complexes were discovered during this time and led to a dinuclear complex that could reduce an alkyne specifically to a trans geometry. His LBL surface science group applied earlier findings on arene activation to aromatic molecules on inorganic surfaces explaining the binding and how carbon-hydrogen bonds are broken in the reactions of these molecules.[23]

Earl's played a major role in the establishment of the ACS journals Inorganic Chemistry and Organometallics. He was on the board of Inorganic Syntheses and editted Volume 10. Earl also edited books on boron chemistry and transition-metal hydrides and wrote reviews on complexes with unusual coordination numbers. With Alan MacDiarmid at the University of Pennsylvania and Neil Bartlett, then at Princeton, he set up the Penn-University of Delaware-DuPont (PUDDUP)[24] seminar series that met monthly for discussions of research in inorganic chemistry.

Citations

For more personal descriptions of Earl and his contributions, please see the article from the National Academy of Sciences

http://books.nap.edu/html/biomems/emuetterties.pdf

or the tribute by Roald Hoffman:

http://pubs.acs.org/doi/pdf/10.1021/ic00181a600

Both contain photographs.

References

Vorlage:Reflist

Vorlage:Uncategorized

  1. ↑ Brown, Charles A.; Muetterties, Earl L.; Rochow, Eugene G. Boron-nitrogen systems. III. Addition compounds of boron trifluoride and diamines. Journal of the American Chemical Society (1954), 76 2537-9.
  2. ↑ Muetterties, Earl L.; Rochow, Eugene G. Complexes of boron fluoride with amides. Journal of the American Chemical Society (1953), 75 490-1.
  3. ↑ Muetterties, E. L.; Phillips, W. D. J. Am. Chem. Soc. 1957, 79, 322. “Structure of ClF3 and Exchange Studies on Some Halogen Fluorides by Nuclear Magnetic Resonance.”
  4. ↑ Muetterties, E. L.; Mahler, W.; Packer, K. J.; Schmutzler, R. Inorg. Chem. 1964, 3, 1298. “Five-coordinate Stereochemistry.”
  5. ↑ Aftandilian, V. D.; Miller, H. C; Parshall, G. W.; Muetterties, E. L. Inorg. Chem. 1962, 1, 734. “Chemistry of Boranes. First Example of a B11 Hydride, the B11H14 Anion.”
  6. ↑ Knoth, W. H.; Miller, H. C; England, D. C; Parshall G. W.; Muetterties, E. L. J. Am. Chem. Soc. 1962, 84, 1056. “Derivative Chemistry of B10H102- and B12H122-.”
  7. ↑ Muetterties, E. L.; Balthis, J. H.; Chia, Y. T.; Knoth, W. H.; Miller, H. C. Inorg. Chem. 1964, 3, 444. “Salts and Acids of B10H102- and B12H122-
  8. ↑ Knoth, W. H.; Sauer, J. C; England, D. C; Hertler, W. R.; Muetterties, E. L. J. Am. Chem. Soc. 1964, 86, 3973. Derivative Chemistry of B10H102- and B12H122-.
  9. ↑ Meakin, P.; Muetterties, E. L.; Jesson, J. P. J. Am. Chem. Soc. 1973, 95, 75. “Stereochemically Nonrigid Six Coordinate Molecules. The Temperature-Dependent 1H and 31P Nuclear Magnetic Resonance Spectra of Some Iron and Ruthenium Dihydrides.” Muetterties, E. L.; Wright, C. M. Q. Rev. Chem. Soc. 1967, 21, 109. “Molecular Polyhedra of High Coordination Number.” Muetterties, E. L. Inorg. Chem. 1973, 12, 1963. “Stereochemical Lability of Eight-Coordinate Complexes.” Hoffmann, R.; Beier, B. F.; Muetterties, E. L.; Rossi, A. R. Inorg. Chem. 1977, 16, 511. “Seven-Coordination. A Molecular Orbital Exploration of Structure, Stereochemistry, and Reaction Dynamics.”
  10. ↑ J. P. Jesson, Personal recollection.
  11. ↑ Muetterties, Earl L.. Fluorocarbons. (1955), US 2709184 19550524. Fluorocarbons. (1955), US 2709185. Fluorocarbons. (1955), US 2709186 19550524. Fluorocarbons. (1955), US 2709187 19550524. Fluorocarbons. (1955), US 2709188 19550524. Fluorocarbons. (1955), US 2709189 19550524. Fluorocarbons. (1955), US 2709190 19550524. Fluorocarbons. (1955), US 2722559 19551101. Trifluoromethanethiol derivatives. (1956), US 2729663 19560103. Pyrosulfuryl fluoride. (1957), US 2801904 19570806. Boric tris(fluorocarboxylic) anhydrides. (1957), US 2782233 19570219. Chlorofluoromethanes from phosgene and a metal fluoride. (1956), US 2757214 19560731. Catalytic addition complexes of phosphorus pentafluoride with organic Lewis bases. (1956), US 2748145 19560519. Fluorocarbons. (1956), DE 950282 19561018. Mercuric fluoride. (1956), US 2757070 19560731. Polymerization of cyclic ethers with phosphorous pentafluoride. (1958), US 2856370 19581014. Arsenic fluorosulfonate. (1958), US 2832667 19580429. Phosphorus pentafluoride. (1957), US 2810629 19571022. Sulfur hexafluoride. (1959), US 2883267 19590421. Alkylated boron compounds. (1958), US 2840590 19580624. Sulfur oxyfluoride manufacture by pyrolysis of pyrosulfuryl fluoride. (1959), US 2879138 19590324. Alkyldiboranes. (1960), US 2925439 19600216 CAN 54:67868. Electrolytic production of sulfur hexafluorides. (1960), US 2937123 19600517. Aryl boron halides. (1959), US 2900414 19590818. Sulfur hexafluoride. (1958), DE 1044046 19581120. Silanes. US 3057686 19621009. Decaborane derivatives. (1962), US 3050361 19620821. Boron hydrides. (1962), US 3063809 19621113. Diborane. (1962), US 3019086 19620130. Sulfur hexafluoride. (1962), US 3054661 19620918. Docosahydroeicosaboric acid and its salts. U.S. (1969), 12 pp. USXXAM US 3446604 19690527. Boron chelates of 1-amino-7-imino-1,3,5-cycloheptatrienes. U.S. (1967) US 3336380 19670815. Silicon and germanium chelates of tropolones. (1965), US 3177237 19650406. Metal chelates of 1-amino-7-imino-1,3,5-cycloheptatrienes. (1965), US 3177232 19650406. Boron tropolone chelates. (1965), US 3177240 19650406. Sulfide derivatives of decaborane. (1964), US 3154561 19641027. Docosahydroeicosaboric acid and its salts. U.S. (1969), US 3446604 19690527. Boron chelates of 1-amino-7-imino-1,3,5-cycloheptatrienes. U.S. (1967), US 3336380 19670815. Silicon and germanium chelates of tropolones. (1965), US 3177237 19650406. Metal chelates of 1-amino-7-imino-1,3,5-cycloheptatrienes. (1965), US 3177232 19650406. Boron tropolone chelates. (1965), US 3177240 19650406. Sulfide derivatives of decaborane. (1964), US 3154561 19641027
  12. ↑ Miller, Henry Charles; Muetterties, Earl L.. Preparation of polyhydropolyborates. U.S. (1967), 9 pp. CODEN: USXXAM US 3328134 19670627. Dodecahydrododecaborates. (1965), US 3169045 19650209. Synthesis of dihydrogen decahydrododecaborate. (1965), US 3169044 19650209. Boron compounds. (1964), 17 pp. GB 956256 19640422. Preparation of polyhydropolyborates. U.S. (1967), US 3328134 19670627. Dodecahydrododecaborates. (1965), US 3169045 19650209. Synthesis of dihydrogen decahydrododecaborate. (1965), US 3169044 19650209. Boron compounds. (1964), GB 956256 19640422. Metal derivatives of borane adducts. CAN 56:7779 AN 1962:7779
  13. ↑ Chamberland, Bertrand L.; Muetterties, Earl L.. Halogen derivatives of polyhedral boron compounds. U.S. (1968), 6 pp.
  14. ↑ Muetterties, Earl L.; Parshall, George W. Polyfluoroperhaloalkyl boronic acid esters. (1962), 6 pp. US 3052710 19620904
  15. ↑ Farlow, Mark W.; Muetterties, Earl L.. Fluorocarbons. (1958), DE 1032239 19580619. Fluorocarbons. (1958), DE 1047186 19581224. Low-molecular-weight fluorocarbons. (1959), U.S. 2,709,189 (CA 50, 6499d). US 2894996 19590714. Fluorocarbon compounds. (1955), US 2725410 19551129
  16. ↑ Muetterties, Earl L.; Phillips, Wm. D.; Smith, Wm. C. Sulfur tetrafluoride adducts. (1959), US 2897055 19590728
  17. ↑ Denison, Jack T.; Farlow, Mark W.; Muetterties, Earl L.; Whipple, Geo. H. Fluorocarbon compounds. (1958), DE 1040011 19581002. Fluorocarbon compounds. (1959), US 2884467 19590428
  18. ↑ Beruter J; Beauchamp G K; Muetterties E L Complexity of chemical communication in mammals: urinary components mediating sex discrimination by male guinea pigs. Biochemical and biophysical research communications (1973), 53(1), 264-71.
  19. ↑ Berueter, Josef; Beauchamp, Gary K.; Muetterties, Earl L.. Mammalian chemical communication. Perineal gland secretion of the guinea pig. Physiological Zoology (1974), 47(2), 130-6.
  20. ↑ Preti, George; Muetterties, Earl L.; Furman, Joseph M.; Kennelly, James J.; Johns, Bradford E. Volatile constituents of dog (Canis familiaris) and coyote (Canis latrans) analysis sacs. Journal of Chemical Ecology (1976), 2(2), 177-86.
  21. ↑ Muetterties, E. L.; Watson, P. L.J. Am. Chem. Soc. 1978, 100, 6978. “An Examination of the Reductive Elimination Reaction.”
  22. ↑ Rakowski, M. C; Hirsekorn, F. J.; Stuhl, L. S.; Muetterties, E. L. Inorg. Chem. 1976, 15, 2379. “Catalytic Homogeneous Hydrogenation of Arenes. Characterization of the Basic Reaction and Catalysts.”
  23. ↑ Hemminger, J. C; Muetterties, E. L.; Somorjai, G. A. /. Am. Chem. Soc. 1979, 101, 62. “A Coordination Chemistry Study of a Nickel Surface. The Chemistry of Nickel (111) with Triply Bonded Molecules.” Wexler, R. M.; Tsai, M. C; Friend, C. M.; Muetterties, E. L. /. Am. Chem. Soc. 1982, 104, 2034. “Pyridine Coordination Chemistry of Nickel and Platinum Surfaces.”
  24. ↑ Ittel, S. D., Chemical Innovation, 30(8), 42, August, 2000, “PUDDuP – More Learning from the Past.”
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