Zobrazeno 1 - 10
of 30
pro vyhledávání: '"C.J. Groenenboom"'
Publikováno v:
Journal of Organometallic Chemistry, 97(1), 73-77. Elsevier Science
He(I) photoelectron spectra of the compounds (C5H5)M(C7H7) (M = Zr, Nb, Mo) are reported. The results are compared with those for the corresponding 3d transition metal compounds and discussed in terms of qualitative MO considerations.
Publikováno v:
Journal of Organometallic Chemistry, 81(3), 379-384. Elsevier Science
The synthesis properties of the compounds (C 5 H 5 )M(C 7 H 7 ) with M = Zr and Nb are described. The Zr compounds is diamagnetic; its PMR spectrum shows two singlets with intensities in the ratio of 7/5; the niobium compound has one unpaired electro
Publikováno v:
Journal of Organometallic Chemistry, 74(2), 245-253. Elsevier Science
The synthesis and the properties of the complexes Cp2TaCl2, Cp2M(allyl), Cp2M(1-methylallyl) and Cp2M(2-methylallyl) with M Nb, Ta are described. The complex Cp2TaCl2 has one unpaired electron per tantalum atom, while the allyl complexes are diam
Publikováno v:
Journal of Organometallic Chemistry, 97(1), 67-71. Elsevier Science
Metallation of (C5H5)Ti(C8H8) is much more difficult than that of (C5H5)-Ti(C7H7). Analysis of the products obtained after addition of CH3I shows that substitution of (C5H5)Ti(C8H8) takes place predominantly in the C5H5 ring, whereas (C5H5)Ti(C7H7) i
Publikováno v:
Journal of Organometallic Chemistry, 94(1), 23-27. Elsevier Science
(Cyclopentadienyl)(1-methylallyl)(butadiene)titanium, C 13 H 18 Ti, has been obtained from the reaction between (C 5 H 5 )TiCl 3 or (C 5 H 5 )TiCl 2 and 1-methylallylmagnesium bromide in ether. The brown compound is diamagnetic and thermally stable,
Publikováno v:
Journal of Organometallic Chemistry, 76(1), C4-C6. Elsevier Science
X-ray photoelectron spectra of (C5H5)M(C7H7) with M = Ti, V, Cr and some related compounds are reported. Data show that the oxidation state of the metal increases in the sequence Cr
Publikováno v:
Chemischer Informationsdienst. 5
Publikováno v:
Journal of Organometallic Chemistry, 102(1), 49-56. Elsevier Science
The syntheses of the ring-subtituted sandwich complexes ( h 7 -C 7 H 7 )-( 5 -R)Ti (R = C 5 H 4 C(CH 3 ) 3 , C 5 H 4 Si(CH 3 ) 3 , indenyl), ( h 7 -C 7 H 6 C 6 H 5 )( h 5 -C 5 H 5 )Ti and the compound ( h 7 -C 9 H 9 )( h 5 -C 5 H 5 )Ti are described.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c18d72e7c80d7d86919fc905c1f9df0
https://research.rug.nl/en/publications/3b63faff-ebdc-40fa-b01e-461d2e2f18c8
https://research.rug.nl/en/publications/3b63faff-ebdc-40fa-b01e-461d2e2f18c8
Autor:
F. Jellinek, C.J. Groenenboom
Publikováno v:
Journal of Organometallic Chemistry, 80(2), 229-234. Elsevier Science
Carbon-13 and proton magnetic resonance spectra of the compounds (C5H5)M(C7H7) (M = tt, Zr, Mo, Cr) and of some methyl derivatives of the Ti compound have been studied. In the Ti and Zr compounds the C-13 resonance of the C7H7 ring is observed to hig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3031ebbf3deed4b8ef450daf3ecdc61
https://research.rug.nl/en/publications/4583e2c3-95e1-4661-95d9-9a82b50ff77d
https://research.rug.nl/en/publications/4583e2c3-95e1-4661-95d9-9a82b50ff77d
Autor:
C.J. Groenenboom
Some recent developments in the synthesis and modification of Y-zeolites and their influence on the performance of cracking catalysts are reviewed. In these catalysts also functional ingredients as active aluminas and metal traps are incorporated. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::967f7a7c1c5e6833d11c0b1867974530
https://doi.org/10.1016/s0167-2991(08)60971-4
https://doi.org/10.1016/s0167-2991(08)60971-4