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Oligophosphanid‐Anionen: Synthesen und Molekülstrukturen von [K 2 (PMDETA) 2 (P 4 Ph 4 )], [K 2 (PMDETA)(P 4 t Bu 4 )] 2 und [K(PMDETA)(THF){ cyclo ‐(P 5 t Bu 4 )}] (PMDETA = NMe(CH 2 CH 2 NMe 2 ) 2 )
Author(s) -
Wolf Robert,
HeyHawkins Evamarie
Publication year - 2006
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200500384
Subject(s) - alkali metal , chemistry , crystallography , nuclear magnetic resonance spectroscopy , yield (engineering) , spectroscopy , potassium , stereochemistry , materials science , physics , organic chemistry , metallurgy , quantum mechanics
Oligophosphanide Anions: Syntheses and Molecular Structures of [K 2 (PMDETA) 2 (P 4 Ph 4 )], [K 2 (PMDETA)(P 4 t Bu 4 )] 2 and [K(PMDETA)(THF){ cyclo ‐(P 5 t Bu 4 )}] (PMDETA = NMe(CH 2 CH 2 NMe 2 ) 2 ) The alkali metal tetraphosphanediides [K 2 (PMDETA) 2 (P 4 Ph 4 )] ( 1 ) and [K 2 (PMDETA)(P 4 t Bu 4 )] 2 ( 2 ) [PMDETA = NMe(CH 2 CH 2 NMe 2 ) 2 ] were synthesized via reaction of PhPCl 2 or t BuPCl 2 with 2.5 equiv. potassium and characterized by X‐ray crystallography and 31 P NMR spectroscopy. As in other ion contact complexes of the type M 2 (P 4 R 4 ) (M = alkali metal) the solid‐state structures are retained in solution. While 1 could be prepared in comparatively good yield (54 %), 2 was only isolated in very modest yield and with low purity as [K(PMDETA)(THF){ cyclo ‐(P 5 t Bu 4 )}] ( 3 ) was formed as a side product in this case. 3 was also characterized by X‐ray crystallography and 31 P NMR spectroscopy.