Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Kay A. Youngdahl"'
Publikováno v:
Applied Organometallic Chemistry. 7:647-654
Preceramic block or graft copolymers may offer entree into nanocomposite ceramics provided the two homopolymers are immiscible and one can carefully control the size of the blocks or grafts. We are exploring the possibility of making copolymers from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bfd67b052ce6e3f24009027d23714732
https://doi.org/10.1002/aoc.590070808
https://doi.org/10.1002/aoc.590070808
Autor:
Richard M. Laine, Martin L. Hoppe, Blohowiak Kay A. Youngdahl, Zhi-Fan Zhang, Richard A. Kennish
Publikováno v:
Journal of Materials Research. 8:1777-1790
Sixty−70 μm diameter preceramic fibers, extruded from THF solutions containing 1:2:3 stoichiometric mixtures of yttrium, barium, and copper carboxylates, were pyrolytically transformed into ceramic fibers using controlled heating schedules and rea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4f1fc617276a61eed2b325c03d3004a
https://doi.org/10.1557/jmr.1993.1777
https://doi.org/10.1557/jmr.1993.1777
Autor:
Martin L. Hoppe, Jean Ray, Kay A. Youngdahl, Richard M. Laine, Richard A. Kennish, Zhi Fan Zhang
Publikováno v:
Journal of Materials Research. 6:895-907
Working principles are developed as guidelines for the selection and/or design of organometallic polymers for processing fiber precursors to metal oxide fibers. These principles form the basis for the selection of metal carboxylate preceramics as an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e8446cc6a22afbd4cc68685cbe30595
https://doi.org/10.1557/jmr.1991.0895
https://doi.org/10.1557/jmr.1991.0895
Autor:
Christine M. Kim, Carlton E. Ash, Yui May Hsiao, Marcetta Y. Darensbourg, Larry W. Arndt, Kay A. Youngdahl, Joseph H. Reibenspies
Publikováno v:
Journal of Organometallic Chemistry. 394:733-741
Reaction of salts of HFe(CO)3PR3− (R = OMe, OEt, OPh, Me, Ph) with Ph3PAuCl leads to quantitative partitioning into H2Fe(CO)3PR3 and (Ph3PAu)2 Fe(CO)3PR3. The complex (Ph3PAu)2Fe(CO)3P(OEt)3 · Et2O crystallized in the monoclinic space group P21/n,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d722d655b803b560e8a5be8438555404
https://doi.org/10.1016/0022-328x(90)87264-e
https://doi.org/10.1016/0022-328x(90)87264-e
Autor:
John F. Harrod, Kay A. Youngdahl, Martin L. Hoppe, Zhi Fan Zhang, Jeffrey A. Rahn, Richard M. Laine, Florence Babonneau
Publikováno v:
Chemistry of Materials. 2:464-472
The synthetic utility of homogeneous titanium catalyzed redistribution of the cyclomers-(MeHSiO) (x)-(where x=4 or 5) and the linear oligomer -MeHSiO(x) - MeHSiO(x)-(M(n) approx. 2,200 D) was explored as a route to MeSiH3 and a methylsilsesquioxane-m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a13305778cb3f611a6ff130684768209
https://doi.org/10.1021/cm00010a028
https://doi.org/10.1021/cm00010a028
Autor:
C. P. Janzen, Yong K. Park, Carlton E. Ash, Larry W. Arndt, Marcetta Y. Darensbourg, Kay A. Youngdahl
Publikováno v:
Journal of Organometallic Chemistry. 383:191-199
The relative reactivity of anionic transition metal carbonyl hydrides towards hydride transfer to monomeric metal carbonyls is consistent with an ionic route, generating, in the best-matched cases of electrophilic carbonyls (highest f CO or average v
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74a46fd4c99a3c6b82ae784c4276ef99
https://doi.org/10.1016/0022-328x(90)85131-h
https://doi.org/10.1016/0022-328x(90)85131-h
Publikováno v:
Inorganic Syntheses, Volume 26
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c43b18c4392329f52882befb9fa2bd37
https://doi.org/10.1002/9780470132579.ch30
https://doi.org/10.1002/9780470132579.ch30
Autor:
Kay A. Youngdahl, Richard A. Kennish, Zhi-Fan Zhang, Martin L. Hoppe, D. Jean Ray, Richard M. Laine
Publikováno v:
MRS Proceedings. 180
A variety of anhydrous Y, Ba and Cu carboxylates were synthesized and screened for utility as spinnable precursors to 123 superconducting fibers. Simple extrusion studies demonstrate that THF solutions of mixtures of Y, Ba and Cu isobutyrates with so
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed659da313467232cd0bc9c5c846c9a0
https://doi.org/10.1557/proc-180-865
https://doi.org/10.1557/proc-180-865
Publikováno v:
Journal of Molecular Catalysis. 48:183-197
Preliminary studies on transition metal-catalyzed dehydrocoupling of Si-H bonds with H-N bonds to form Si-N bonds, silazanes and H 2 are described. A number of transition metal complexes have been tested as catalyst precursors for the dehydrocoupling
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b34018e26f02ac88f654d1f181a85f25
https://doi.org/10.1016/0304-5102(88)85004-1
https://doi.org/10.1016/0304-5102(88)85004-1
Publikováno v:
Tetrahedron Letters. 30:1781-1784
The anionic transition metal hydrides, HM(CO)4L− (M = Cr, W; L = CO, P(OMe)3) reacted with acrylonitrile and other activated olefins to yield thermally stable addition products, CH3CH(X)M(CO)4L−. Kinetic data and electronic substituent effects in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6cf2149028c5913cc338a12bd4860595
https://doi.org/10.1016/s0040-4039(00)99578-9
https://doi.org/10.1016/s0040-4039(00)99578-9