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BF 3 ‐Stabilized Metalated Sulfinylimides and Sulfurdiimides of the Type Cp(NO) 2 CrNSE·BF 3 (E = O, NSiMe 3 )
Author(s) -
Limmert Michael,
Lorenz IngoPeter,
Neubauer Jürgen,
Nöth Heinrich,
Habereder Tassilo
Publication year - 2001
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/1099-0682(200106)2001:6<1593::aid-ejic1593>3.0.co;2-p
Subject(s) - chemistry , nucleophile , electrophile , ligand (biochemistry) , sulfur , stereochemistry , medicinal chemistry , molecule , chromium , organic chemistry , catalysis , biochemistry , receptor
The coordination behavior of the imido derivatives of sulfur Me 3 SiNSE (E = O, NSiMe 3 ) towards the 16‐electron complex [CpCr(NO) 2 ]BF 4 has been studied. In both cases coordination through an η 1 ‐ N linkage occurs as well as elimination of Me 3 SiF to afford the metalated derivatives Cp(NO) 2 CrNSE, which as N‐nucleophiles are additionally bound to the also‐formed electrophilic BF 3 molecule ( 1 , 2 ). Neither the possible addition products [Cp(NO) 2 Cr{N(SiMe 3 )SE}]BF 4 as intermediates in the synthesis of 1 , 2 nor the BF 3 ‐free derivatives Cp(NO) 2 CrNSE as elimination products of 1 , 2 could be stabilized or generated. The molecular structures of 1 , 2 have been determined by single crystal X‐ray analyses. Both compounds contain a distorted tetrahedrally configured chromium center and an almost planar zig‐zag conformation of their sulfinyl imido (F 3 BNSO) and sulfur diimido ligand (F 3 BNSNSiMe 3 ), respectively.