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Cyclopentadienyl‐Free Calcium Alkyls with Heteroelement‐Substituted Anionic Phosphane Ligands: Synthesis and Structure of a Trialkyl Calcate( II ) and of an Organocalcium Heterocubane
Author(s) -
Knapp Volker,
Müller Gerhard
Publication year - 2001
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20010105)40:1<183::aid-anie183>3.0.co;2-8
Subject(s) - chemistry , cyclopentadiene , denticity , calcium , cyclopentadienyl complex , sodium , oxygen atom , medicinal chemistry , stereochemistry , molecule , crystal structure , organic chemistry , catalysis
Hard and soft centers : the donors O (hard), P and C (soft) are together in the multidentate, oxygen‐substituted, anionic phosphanes I and II , which are particularly suitable for the synthesis of novel calcium organyls. With these mono‐ and dianionic ligands calcium organyl compounds, without cyclopentadiene ligands, could be prepared and structurally characterized: a sodium trialkyl calcate( II ) and the first calcium organyl compound with a heterocubane structure. Ph′= p ‐tolyl.