Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Klaas H den Haan"'
Autor:
Dik van de Meent, Dick de Zwart, Jaap Struijs, Joop L. M. Hermens, Nico M. van Straalen, Klaas H. den Haan, John R. Parsons, Pim de Voogt, Kees van Leeuwen
Publikováno v:
Environmental Sciences Europe, Vol 35, Iss 1, Pp 1-13 (2023)
Abstract This paper describes a straightforward modeling procedure to derive ‘expected risk’ (ER) of chemical substances. Starting from proposed use volumes, intended uses, physical and chemical substance properties and toxicity information, the
Externí odkaz:
https://doaj.org/article/0218cecc034b49c0b823b848e3cd1a6b
Publikováno v:
Integrated environmental assessment and management. 11(4)
The trend in discharges of petroleum-related substances from refineries in Europe shows a consistent picture of declining emissions, since first measured in 1969. This decline coincides with enhanced internal capture or recycling procedures and incre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::b43fa024d9f630c71cb11365e9a6c419
https://pubmed.ncbi.nlm.nih.gov/25810150
https://pubmed.ncbi.nlm.nih.gov/25810150
Publikováno v:
Organometallics, 6(7), 1509-1515. AMER CHEMICAL SOC INC
The reactions of Cp*2YCH(SiMe3)2 (1) (Cp* = η5-C5Me5) with CO2, t-BuCN, and t-BuNC give the monomeric complexes Cp*2Y(η2-O2CCH(SiMe3)2) (3), Cp*2YN=C(t-Bu)CH(SiMe3)2·NC-t-Bu (4), and Cp*2YCH(SiMe3)2·CN-t-Bu (5), respectively. With CS2 and (2,6-xy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e56d51ccf4793368e71ccf1ef77c530
https://doi.org/10.1021/om00150a024
https://doi.org/10.1021/om00150a024
Publikováno v:
Journal of Organometallic Chemistry, 323(2), 181-192. Elsevier Science
Reaction of Cp*2Y(μ-Cl)2 · 2OEt2 (1) with MeLi gives the new complexes Cp*2Y(μ-Me)(μ-Cl)Li · 2OEt2 (3), Cp*2Y(μ-Me)2Li · OEt2 (4) and Cp*2YNe · THF (5) depending on the reaction conditions and stoichiometry. Salt incorporation is also observe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e860246c56fc0063a99b4c6ae5a7a7e
https://research.rug.nl/en/publications/9a2700a4-7d42-41b2-8ab5-89d5db96a6f7
https://research.rug.nl/en/publications/9a2700a4-7d42-41b2-8ab5-89d5db96a6f7
Autor:
Klaas H. den Haan, Jan H. Teuben
Publikováno v:
Journal of Organometallic Chemistry, 322(3), 321-329. Elsevier Science
Permethylyttrocene chlorides Cp * 2 Y(μ-Cl) 2 Li · 2OEt 2 and Cp * 2 Y(μ-Cl) 2 Na · OEt 2 have been prepared from YCl 3 · 3THF and Cp * Li or Cp * Na. The former can be converted into Cp * 2 Y(μ-Cl) 2 Li · TMEDA and Cp * 2 Y(μ-Cl) 2 Li · DME
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f5009992af8900ebb35ddc3021ecbf9
https://doi.org/10.1016/s0022-328x(00)99360-4
https://doi.org/10.1016/s0022-328x(00)99360-4
Publikováno v:
Organometallics, 6(10), 2053-2060. AMER CHEMICAL SOC INC
Reactions of the permethylyttrocene compounds Cp*2YCH(SiMe3)2 (1) and Cp*2YMe·THF (2) with a variety of active hydrogen-containing substrates are reported. With HCl the known complexes (Cp*2YCl)2 and Cp*2YCl·THF are formed. Reaction with 2,4-pentad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e4b8538045a9d49f350ad8368c76af7
https://hdl.handle.net/11370/dac7072b-72e8-4756-87ef-776f2411b3a3
https://hdl.handle.net/11370/dac7072b-72e8-4756-87ef-776f2411b3a3
Autor:
Anthony L. Spek, Gary R. Hays, Rob Huis, Jan L. de Boer, B. Kojic-Prodic, Jan H. Teuben, Klaas H. den Haan
Publikováno v:
Organometallics, 5(8). AMER CHEMICAL SOC INC
The reactions of Cp*2YCl·THF (2) with NaN(SiMe3)2 and LiCH(SiMe3)2 yield the monomeric complexes Cp*2YN(SiMe3)2 (3) and Cp*2YCH(SiMe3)2 (4), respectively. The crystal structures of 3 and 4 were determined by X-ray diffraction methods. The crystals o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c232d0d5927fefb47ecd7adfbe7a732f
https://doi.org/10.1021/om00139a034
https://doi.org/10.1021/om00139a034
Autor:
Klaas H. den Haan, Jan H. Teuben
Publikováno v:
Recueil des Travaux Chimiques des Pays-Bas-Journal of the Royal Netherlands Chemical Society, 103(11), 333-334. ELSEVIER SCIENCE BV
A convenient three step synthesis of (Cp*2YH)n (Cp* = C5Me5) is described starting with YCl3.3thf, in which Cp*2YCl.thf and Cp*2YCH(SiMe3)2 are intermediates, which could be isolated and characterized. The hydride is active in the activation of sp2 a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34adeb9467a725ea75926468bf026661
https://hdl.handle.net/11370/2e0d479f-e369-4cb1-8714-b794510920ef
https://hdl.handle.net/11370/2e0d479f-e369-4cb1-8714-b794510920ef
Autor:
Jan H. Teuben, Klaas H. den Haan
Publikováno v:
Journal of the Chemical Society-Chemical Communications, 6(9), 682-683. ROYAL SOC CHEMISTRY
Thermolysis of [(C5Me5)2YH]2 in n-octane or benzene yields (C5Me5)2Y(µ-H)Y(η5-C5Me4CH2)(C5Me5), a bis-yttrium-monohydride in which a tetramethylfulvene ligand bridges in a σ–η5 manner between the yttrium atoms; the hydride bridge is asymmetric
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d8554430e8324dd7a9d1338d7acc5a04
https://doi.org/10.1039/c39860000682
https://doi.org/10.1039/c39860000682