English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

A good entry to cyclopentadienyl substituted isonitrile complexes of W(IV) is provided by CpW(CO)(t-BuNC)(I) 3  (4), prepared by oxidative decarbonylation of cis- or trans-CpW(CO) 2 (t-BuNC)I (2,3) with elemental iodine. The isomers 2 and 3, separable by column chromatography on silica at low temperature, are easily obtained from CpW(CO) 3 I (1) and t-BuNC using Me 3 NO as a decarbonylating agent. Compound 4 reacts with t-BuNC to yield a mixture of the cationic complexes [CpW(CO)(t-BuNC) 2 (I) 2 ]I (5) and [CpW(t-BuNC) 3 (I) 2 ]I (6). The neutral cyano complex CpW(CN)(t-BuNC) 2 (I) 2  (7), resulting from the dealkylation of one tert-butylisonitrile ligand, is also obtained. The insoluble main product 5 is easily separated from 6 and 7, and is converted with AgBF 4  to the corresponding BF 4 -salt [CpW(CO)(t-BuNC) 2 (I) 2 ]BF 4  (8). The soluble byproducts 6 and 7 have been purified by column chromatography on silica. The composition and structure of the new complexes 4-8 have been derived from elemental analyses and spectroscopic investigations. The ionic nature of 6 and 8 has been confirmed by comparison of their conductivity data in 1,2 dichloroethane with that of NR 4  + X -  salts (R = alkyl; X = Br, I)

Isonitril-substituierte Halbsandwich-Komplexe von Wolfram(IV) / Isonitrile Substituted Half Sandwich Complexes of Wolfram(IV)