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 Plus annual

Presents the access of premium content as premium feature

Premium Content

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 annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

W 2 NCl 9  was obtained as a brilliant red crystal powder from tungsten hexachloride and tris(trimethylsilyl)amine. According to its IR spectrum it has dimeric molecules [W 2 NCl 9 ] 2  with bridging chlorine atoms. Its reaction with tetraphenylphosphonium chloride yields PPh 4 [W 2 NCl 10 ], and with phosphorus oxide chloride W 2 NCl 9  ·OPCl 3  is obtained; both are soluble in dichlorom ethane. The crystal structure of PPh 4 [W 2 NCl 10 ] was determined by X-ray diffraction (2521 observed reflexions. R = 0.065). Crystal data: triclinic, space group P1̄, Z = 2, a = 1125.7, b - 1278.2, c = 1347.8 pm, α = 110.08, β = 94.55, γ = 111.55°. The structure consists of PPh4 ⓛ  ions which are arranged to (PPh 4  ⓛ ) 2  pairs about inversion centres, and of [W 2 NCl 10 ] ⃝  anions. The latter possess an almost linear W NW group (173°) with slightly different WN bond lengths of 179 and 188 pm corresponding to double bonds. Each tungsten atom has an octahedral coordination. The WCl bonds trans to the nitrido ligand are about 9 pm longer than the bonds in the cis positions.

zeitschrift für naturforschung b

μ-Nitridokomplexe von Wolfram(VI) Die Kristallstruktur von PPh 4 [W 2 NCl 10 ]/ μ-Nitrido Complexes of Tungsten(VI) The Crystal Structure of PPh 4 [W 2 NCl 10 ]