Novel Synthesis, X-ray Crystal Structures, and Spectroscopic Properties of Metalated Hypervalent Phosphorus Compounds, Cp(CO)LFe{P(OC6H4Y)(OC6H4Z)} (L = CO, P(OPh)3, P(OMe)3, PMe3; Y, Z = NH, NMe, O)

1998 ◽  
Vol 17 (16) ◽  
pp. 3522-3531 ◽  
Author(s):  
Kazuyuki Kubo ◽  
Hiroshi Nakazawa ◽  
Tsutomu Mizuta ◽  
Katsuhiko Miyoshi
Keyword(s):  
Crystal Structures ◽  
Spectroscopic Properties ◽  
Phosphorus Compounds ◽  
X Ray ◽  
Novel Synthesis

Synthesis, characterization and spectroscopic properties of [CuI(alkylisocyanide)4]BF4 complexes. X-ray crystal structures of [Cu(MIBI)4]BF4 and [Cu(CPI)4]BF4

Polyhedron ◽  
1997 ◽  
Vol 16 (14) ◽  
pp. 2397-2403 ◽  
Author(s):  
Bettina Deicas ◽  
Dinorah Gambino ◽  
Carlos Kremer ◽  
Eduardo Kremer ◽  
Alvaro Mombrú ◽  
...  
Keyword(s):  
Crystal Structures ◽  
Spectroscopic Properties ◽  
X Ray

Über die Darstellung neuer spirocyclischer N,N′-Dimethylsulfamid-substituierter Phosphorverbindungen und Ν,N′-Dimethylsulfamid-verbrückter Diphosphorverbindungen / The Preparation of New Spirocyclic N,N′-Dimethylsulphamide-Substituted Phosphorus Compounds, and of Some N,N′-Dimethylsulphamide-Bridged Diphosphorus Compounds

1990 ◽  
Vol 45 (2) ◽  
pp. 175-183 ◽  
Author(s):  
Peter G. Jones ◽  
Anke Meyer ◽  
Reinhard Schmutzler
Keyword(s):  
Crystal Structure ◽  
Nitrogen Atom ◽  
Structure Determination ◽  
Sodium Azide ◽  
Mixed Valence ◽  
Spectroscopic Properties ◽  
Phosphorus Compounds ◽  
Molar Ratio ◽  
X Ray ◽  
Trigonal Bipyramidal

The reactions of 4-chloro-1,3,5,7-tetramethyl-2,2,6,6-tetraoxa-2,6-dithia-1,3,5,7-tetraaza-4λ5-phosphaspiro[3.3]heptane (1) with trimethylsilyl compounds and sodium azide led to a series of spirocyclic N,N′-dimethylsulphamide-substituted phosphoranes (2—5). The nature of the pentaaza-spirophosphorane (4) was confirmed by an X-ray crystal structure determination (C2/c, a = 991.8(4), b = 1185.6(6), c = 1224.9(5) pm,β = 108.64(3)°, Z = 4, R = 0.041 for 1065 unique observed reflections); a crystallographic twofold axis passes through phosphorus and the nitrogen atom of the NMe2 group. The geometry at phosphorus is to a good approximation trigonal bipyramidal. The azido-spirophosphorane (5) undergoes Staudinger-type reactions with phosphorus(III) compounds (PPh3, dppm) to form the mixed-valence phosphorus compounds 6—8. The reaction of N,N′-dimethylsulphamide or N,N′-dimethyl-N,N′-bis(trimethylsilyl)-sulphamide with dichlorophosphines RPCl2 (R = Me, Ph) in a molar ratio 1:2 leads to the formation of the acyclic N,N′-dimethylsulphamide-bridged diphosphorus compounds 9 and 10, respectively. The spectroscopic properties (and, for 4, the X-ray crystal structure) of the products are compared with those of analogous urea-bridged phosphorus compounds.

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